diff --git a/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/1k1k/1p1d-dep4-dep16.yaml b/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/1k1k/1p1d-dep4-dep16.yaml
new file mode 100644
index 0000000000..39e5315059
--- /dev/null
+++ b/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/1k1k/1p1d-dep4-dep16.yaml
@@ -0,0 +1,154 @@
+name: "qwen3.5-1p1d-dep4-dep16"
+
+
+dynamo:
+  hash: 46520ca59afe992fb5ef61b3197b2316f8df9b2b
+  install: true
+
+frontend:
+  type: dynamo
+  enable_multiple_frontends: true
+  num_additional_frontends: 1
+  nginx_container: nginx
+
+model:
+  path: "qwen3.5-fp8"
+  container: "lmsysorg/sglang:nightly-dev-cu13-20260709-074bb928"
+  precision: "fp8"
+
+resources:
+  gpu_type: "gb300"
+  gpus_per_node: 4
+  prefill_nodes: 1
+  decode_nodes: 4
+  prefill_workers: 1
+  decode_workers: 1
+
+backend:
+  type: sglang
+
+  prefill_environment:
+    SGLANG_JIT_DEEPGEMM_PRECOMPILE: "0"
+    NO_COLOR: "1"
+    TORCH_DISTRIBUTED_DEFAULT_TIMEOUT: "3600"
+    TORCH_NCCL_WATCHDOG_TIMEOUT_SEC: "3600"
+    TORCH_NCCL_HEARTBEAT_TIMEOUT_SEC: "3600"
+    PYTHONUNBUFFERED: "1"
+    NCCL_MNNVL_ENABLE: "1"
+    NCCL_CUMEM_ENABLE: "1"
+    MC_FORCE_MNNVL: "1"
+    SGLANG_DG_CACHE_DIR: "/configs/deepgemm-cache"
+    FLASHINFER_WORKSPACE_BASE: "/configs/flashinfer-cache"
+    SGLANG_DISAGGREGATION_HEARTBEAT_MAX_FAILURE: "100000"
+    SGLANG_DISAGGREGATION_BOOTSTRAP_TIMEOUT: "100000"
+    SGLANG_DISAGGREGATION_WAITING_TIMEOUT: "100000"
+    SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
+    SGLANG_USE_MESSAGE_QUEUE_BROADCASTER: "0"
+    SGLANG_DISABLE_TP_MEMORY_INBALANCE_CHECK: "1"
+    SGLANG_HEALTH_STARTING_OK: "1"
+    SGLANG_ENABLE_HEALTH_ENDPOINT_GENERATION: "0"
+
+  decode_environment:
+    SGLANG_JIT_DEEPGEMM_PRECOMPILE: "0"
+    NO_COLOR: "1"
+    TORCH_DISTRIBUTED_DEFAULT_TIMEOUT: "3600"
+    TORCH_NCCL_WATCHDOG_TIMEOUT_SEC: "3600"
+    TORCH_NCCL_HEARTBEAT_TIMEOUT_SEC: "3600"
+    PYTHONUNBUFFERED: "1"
+    NCCL_MNNVL_ENABLE: "1"
+    NCCL_CUMEM_ENABLE: "1"
+    MC_FORCE_MNNVL: "1"
+    MC_TE_METRIC: "true"
+    SGLANG_DG_CACHE_DIR: "/tmp/deepgemm-cache"
+    FLASHINFER_WORKSPACE_BASE: "/configs/flashinfer-cache"
+    SGLANG_DISAGGREGATION_HEARTBEAT_MAX_FAILURE: "100000"
+    SGLANG_DISAGGREGATION_BOOTSTRAP_TIMEOUT: "100000"
+    SGLANG_DISAGGREGATION_WAITING_TIMEOUT: "100000"
+    SGLANG_DECODE_BOOTSTRAP_TIMEOUT: "1000"
+    SGLANG_HACK_SEQ_BOOTSTRAP_ROOM: "1"
+    SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
+    SGLANG_USE_MESSAGE_QUEUE_BROADCASTER: "0"
+    SGLANG_DISABLE_TP_MEMORY_INBALANCE_CHECK: "1"
+    SGLANG_DEEPEP_NUM_MAX_DISPATCH_TOKENS_PER_RANK: "512"
+    SGLANG_HEALTH_CHECK_TIMEOUT: "1800"
+    SGLANG_HEALTH_STARTING_OK: "1"
+    SGLANG_ENABLE_HEALTH_ENDPOINT_GENERATION: "0"
+
+  sglang_config:
+    prefill:
+      served-model-name: "Qwen/Qwen3.5-397B-A17B-FP8"
+      model-path: "/model/"
+      quantization: "fp8"
+      kv-cache-dtype: "fp8_e4m3"
+      trust-remote-code: true
+
+      tensor-parallel-size: 4
+      data-parallel-size: 4
+      expert-parallel-size: 4
+      enable-dp-attention: true
+      enable-dp-lm-head: true
+
+      mamba-scheduler-strategy: "no_buffer"
+      mamba-track-interval: 2048
+      mamba-ssm-dtype: "bfloat16"
+      disaggregation-mode: "prefill"
+      disable-radix-cache: true
+      disaggregation-bootstrap-port: 31000
+      mem-fraction-static: 0.8
+      chunked-prefill-size: 65536
+      load-balance-method: "round_robin"
+      watchdog-timeout: 1000000
+      disable-cuda-graph: true
+      log-level: "info"
+      page-size: 64
+      attention-backend: "trtllm_mha"
+      moe-runner-backend: "flashinfer_trtllm"
+
+    decode:
+      served-model-name: "Qwen/Qwen3.5-397B-A17B-FP8"
+      model-path: "/model/"
+      trust-remote-code: true
+      quantization: "fp8"
+      kv-cache-dtype: "fp8_e4m3"
+
+      tensor-parallel-size: 16
+      data-parallel-size: 16
+      expert-parallel-size: 16
+      enable-dp-attention: true
+      enable-dp-lm-head: true
+      prefill-round-robin-balance: true
+
+      mamba-scheduler-strategy: "no_buffer"
+      mamba-track-interval: 128
+      mamba-ssm-dtype: "bfloat16"
+
+      disaggregation-mode: "decode"
+      disable-radix-cache: true
+      disaggregation-bootstrap-port: 31000
+
+      chunked-prefill-size: 4096
+      context-length: 4096
+      mem-fraction-static: 0.80
+      max-mamba-cache-size: 2048
+      max-running-requests: 2048
+      cuda-graph-max-bs: 128
+      watchdog-timeout: 1000000
+
+      page-size: 64
+      attention-backend: "trtllm_mha"
+      moe-runner-backend: "deep_gemm"
+      moe-a2a-backend: "deepep"
+      deepep-mode: "low_latency"
+      ep-dispatch-algorithm: "static"
+      eplb-algorithm: "deepseek"
+
+      decode-log-interval: 1
+      stream-interval: 50
+
+benchmark:
+  type: "sa-bench"
+  isl: 1024
+  osl: 1024
+  req_rate: "inf"
+  random_range_ratio: 0.8
+  concurrencies: "512x1024x2048"
\ No newline at end of file
diff --git a/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/1k1k/1p1d-tp4-tp4.yaml b/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/1k1k/1p1d-tp4-tp4.yaml
new file mode 100644
index 0000000000..90eaa12aae
--- /dev/null
+++ b/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/1k1k/1p1d-tp4-tp4.yaml
@@ -0,0 +1,123 @@
+name: "qwen3.5-1p1d-tp4-tp4"
+
+sbatch_directives:
+  mem: "0"
+
+dynamo:
+  hash: 46520ca59afe992fb5ef61b3197b2316f8df9b2b
+  install: true
+
+frontend:
+  type: dynamo
+  enable_multiple_frontends: true
+  num_additional_frontends: 1
+  nginx_container: nginx
+
+model:
+  path: "qwen3.5-fp8"
+  container: "lmsysorg/sglang:nightly-dev-cu13-20260709-074bb928"
+  precision: "fp8"
+
+resources:
+  gpu_type: "gb300"
+  gpus_per_node: 4
+  prefill_nodes: 1
+  decode_nodes: 1
+  prefill_workers: 1
+  decode_workers: 1
+
+backend:
+  type: sglang
+
+  prefill_environment:
+    SGLANG_JIT_DEEPGEMM_PRECOMPILE: "0"
+    TORCH_DISTRIBUTED_DEFAULT_TIMEOUT: "3600"
+    TORCH_NCCL_WATCHDOG_TIMEOUT_SEC: "3600"
+    TORCH_NCCL_HEARTBEAT_TIMEOUT_SEC: "3600"
+    PYTHONUNBUFFERED: "1"
+    NCCL_MNNVL_ENABLE: "1"
+    NCCL_CUMEM_ENABLE: "1"
+    SGLANG_DG_CACHE_DIR: "/configs/deepgemm-cache"
+    FLASHINFER_WORKSPACE_BASE: "/configs/flashinfer-cache"
+    SGLANG_DISAGGREGATION_HEARTBEAT_MAX_FAILURE: "100000"
+    SGLANG_DISAGGREGATION_BOOTSTRAP_TIMEOUT: "100000"
+    SGLANG_DISAGGREGATION_WAITING_TIMEOUT: "100000"
+    SGLANG_USE_MESSAGE_QUEUE_BROADCASTER: "0"
+    SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
+    MC_FORCE_MNNVL: "1"
+
+  decode_environment:
+    SGLANG_JIT_DEEPGEMM_PRECOMPILE: "0"
+    TORCH_DISTRIBUTED_DEFAULT_TIMEOUT: "3600"
+    TORCH_NCCL_WATCHDOG_TIMEOUT_SEC: "3600"
+    TORCH_NCCL_HEARTBEAT_TIMEOUT_SEC: "3600"
+    PYTHONUNBUFFERED: "1"
+    NCCL_MNNVL_ENABLE: "1"
+    NCCL_CUMEM_ENABLE: "1"
+    SGLANG_DG_CACHE_DIR: "/configs/deepgemm-cache"
+    FLASHINFER_WORKSPACE_BASE: "/configs/flashinfer-cache"
+    SGLANG_DISAGGREGATION_HEARTBEAT_MAX_FAILURE: "100000"
+    SGLANG_DISAGGREGATION_BOOTSTRAP_TIMEOUT: "100000"
+    SGLANG_DISAGGREGATION_WAITING_TIMEOUT: "100000"
+    SGLANG_DECODE_BOOTSTRAP_TIMEOUT: "1000"
+    SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
+    SGLANG_USE_MESSAGE_QUEUE_BROADCASTER: "0"
+    SGLANG_HEALTH_CHECK_TIMEOUT: "3600"
+    SGLANG_HEALTH_STARTING_OK: "1"
+    SGLANG_ENABLE_HEALTH_ENDPOINT_GENERATION: "0"
+    MC_FORCE_MNNVL: "1"
+    MC_TE_METRIC: "true"
+    SGLANG_HACK_SEQ_BOOTSTRAP_ROOM: "1"
+
+  sglang_config:
+    prefill:
+      served-model-name: "Qwen/Qwen3.5-397B-A17B-FP8"
+      model-path: "/model/"
+      quantization: "fp8"
+      kv-cache-dtype: "fp8_e4m3"
+      trust-remote-code: true
+      attention-backend: "trtllm_mha"
+      tensor-parallel-size: 4
+      mamba-ssm-dtype: "bfloat16"
+      moe-runner-backend: "flashinfer_trtllm"
+      disable-radix-cache: true
+      max-running-requests: 1024
+      mem-fraction-static: 0.8
+      chunked-prefill-size: 16384
+      max-prefill-tokens: 16384
+      context-length: 4096
+      cuda-graph-max-bs: 1024
+      decode-log-interval: 1
+      stream-interval: 50
+      disaggregation-mode: "prefill"
+
+    decode:
+      served-model-name: "Qwen/Qwen3.5-397B-A17B-FP8"
+      model-path: "/model/"
+      quantization: "fp8"
+      kv-cache-dtype: "fp8_e4m3"
+      trust-remote-code: true
+      attention-backend: "trtllm_mha"
+      tensor-parallel-size: 4
+      mamba-ssm-dtype: "bfloat16"
+      moe-runner-backend: "flashinfer_trtllm"
+      disable-radix-cache: true
+      max-running-requests: 1024
+      mem-fraction-static: 0.8
+      chunked-prefill-size: 16384
+      max-prefill-tokens: 16384
+      context-length: 4096
+      cuda-graph-max-bs: 1024
+      decode-log-interval: 1
+      stream-interval: 50
+      disaggregation-mode: "decode"
+
+benchmark:
+  type: "sa-bench"
+  isl: 1024
+  osl: 1024
+  req_rate: "inf"
+  num_prompts_mult: 10
+  num_warmup_mult: 1
+  random_range_ratio: 0.8
+  concurrencies: "1x2x4x8x16x32x64"
\ No newline at end of file
diff --git a/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/1k1k/2p1d-dep4-dep16.yaml b/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/1k1k/2p1d-dep4-dep16.yaml
new file mode 100644
index 0000000000..334636ebb9
--- /dev/null
+++ b/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/1k1k/2p1d-dep4-dep16.yaml
@@ -0,0 +1,154 @@
+name: "qwen3.5-2p1d-dep4-dep16"
+
+
+dynamo:
+  hash: 46520ca59afe992fb5ef61b3197b2316f8df9b2b
+  install: true
+
+frontend:
+  type: dynamo
+  enable_multiple_frontends: true
+  num_additional_frontends: 2
+  nginx_container: nginx
+
+model:
+  path: "qwen3.5-fp8"
+  container: "lmsysorg/sglang:nightly-dev-cu13-20260709-074bb928"
+  precision: "fp8"
+
+resources:
+  gpu_type: "gb300"
+  gpus_per_node: 4
+  prefill_nodes: 2
+  decode_nodes: 4
+  prefill_workers: 2
+  decode_workers: 1
+
+backend:
+  type: sglang
+
+  prefill_environment:
+    SGLANG_JIT_DEEPGEMM_PRECOMPILE: "0"
+    NO_COLOR: "1"
+    TORCH_DISTRIBUTED_DEFAULT_TIMEOUT: "3600"
+    TORCH_NCCL_WATCHDOG_TIMEOUT_SEC: "3600"
+    TORCH_NCCL_HEARTBEAT_TIMEOUT_SEC: "3600"
+    PYTHONUNBUFFERED: "1"
+    NCCL_MNNVL_ENABLE: "1"
+    NCCL_CUMEM_ENABLE: "1"
+    MC_FORCE_MNNVL: "1"
+    SGLANG_DG_CACHE_DIR: "/configs/deepgemm-cache"
+    FLASHINFER_WORKSPACE_BASE: "/configs/flashinfer-cache"
+    SGLANG_DISAGGREGATION_HEARTBEAT_MAX_FAILURE: "100000"
+    SGLANG_DISAGGREGATION_BOOTSTRAP_TIMEOUT: "100000"
+    SGLANG_DISAGGREGATION_WAITING_TIMEOUT: "100000"
+    SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
+    SGLANG_USE_MESSAGE_QUEUE_BROADCASTER: "0"
+    SGLANG_DISABLE_TP_MEMORY_INBALANCE_CHECK: "1"
+    SGLANG_HEALTH_STARTING_OK: "1"
+    SGLANG_ENABLE_HEALTH_ENDPOINT_GENERATION: "0"
+
+  decode_environment:
+    SGLANG_JIT_DEEPGEMM_PRECOMPILE: "0"
+    NO_COLOR: "1"
+    TORCH_DISTRIBUTED_DEFAULT_TIMEOUT: "3600"
+    TORCH_NCCL_WATCHDOG_TIMEOUT_SEC: "3600"
+    TORCH_NCCL_HEARTBEAT_TIMEOUT_SEC: "3600"
+    PYTHONUNBUFFERED: "1"
+    NCCL_MNNVL_ENABLE: "1"
+    NCCL_CUMEM_ENABLE: "1"
+    MC_FORCE_MNNVL: "1"
+    MC_TE_METRIC: "true"
+    SGLANG_DG_CACHE_DIR: "/tmp/deepgemm-cache"
+    FLASHINFER_WORKSPACE_BASE: "/configs/flashinfer-cache"
+    SGLANG_DISAGGREGATION_HEARTBEAT_MAX_FAILURE: "100000"
+    SGLANG_DISAGGREGATION_BOOTSTRAP_TIMEOUT: "100000"
+    SGLANG_DISAGGREGATION_WAITING_TIMEOUT: "100000"
+    SGLANG_DECODE_BOOTSTRAP_TIMEOUT: "1000"
+    SGLANG_HACK_SEQ_BOOTSTRAP_ROOM: "1"
+    SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
+    SGLANG_USE_MESSAGE_QUEUE_BROADCASTER: "0"
+    SGLANG_DISABLE_TP_MEMORY_INBALANCE_CHECK: "1"
+    SGLANG_DEEPEP_NUM_MAX_DISPATCH_TOKENS_PER_RANK: "512"
+    SGLANG_HEALTH_CHECK_TIMEOUT: "1800"
+    SGLANG_HEALTH_STARTING_OK: "1"
+    SGLANG_ENABLE_HEALTH_ENDPOINT_GENERATION: "0"
+
+  sglang_config:
+    prefill:
+      served-model-name: "Qwen/Qwen3.5-397B-A17B-FP8"
+      model-path: "/model/"
+      quantization: "fp8"
+      kv-cache-dtype: "fp8_e4m3"
+      trust-remote-code: true
+
+      tensor-parallel-size: 4
+      data-parallel-size: 4
+      expert-parallel-size: 4
+      enable-dp-attention: true
+      enable-dp-lm-head: true
+
+      mamba-scheduler-strategy: "no_buffer"
+      mamba-track-interval: 2048
+      mamba-ssm-dtype: "bfloat16"
+      disaggregation-mode: "prefill"
+      disable-radix-cache: true
+      disaggregation-bootstrap-port: 31000
+      mem-fraction-static: 0.8
+      chunked-prefill-size: 65536
+      load-balance-method: "round_robin"
+      watchdog-timeout: 1000000
+      disable-cuda-graph: true
+      log-level: "info"
+      page-size: 64
+      attention-backend: "trtllm_mha"
+      moe-runner-backend: "flashinfer_trtllm"
+
+    decode:
+      served-model-name: "Qwen/Qwen3.5-397B-A17B-FP8"
+      model-path: "/model/"
+      trust-remote-code: true
+      quantization: "fp8"
+      kv-cache-dtype: "fp8_e4m3"
+
+      tensor-parallel-size: 16
+      data-parallel-size: 16
+      expert-parallel-size: 16
+      enable-dp-attention: true
+      enable-dp-lm-head: true
+      prefill-round-robin-balance: true
+
+      mamba-scheduler-strategy: "no_buffer"
+      mamba-track-interval: 128
+      mamba-ssm-dtype: "bfloat16"
+
+      disaggregation-mode: "decode"
+      disable-radix-cache: true
+      disaggregation-bootstrap-port: 31000
+
+      chunked-prefill-size: 4096
+      context-length: 8192
+      mem-fraction-static: 0.75
+      max-mamba-cache-size: 4096
+      max-running-requests: 4096
+      cuda-graph-max-bs: 256
+      watchdog-timeout: 1000000
+
+      page-size: 64
+      attention-backend: "trtllm_mha"
+      moe-runner-backend: "deep_gemm"
+      moe-a2a-backend: "deepep"
+      deepep-mode: "low_latency"
+      ep-dispatch-algorithm: "static"
+      eplb-algorithm: "deepseek"
+
+      decode-log-interval: 1
+      stream-interval: 50
+
+benchmark:
+  type: "sa-bench"
+  isl: 1024
+  osl: 1024
+  req_rate: "inf"
+  random_range_ratio: 0.8
+  concurrencies: "4096"
\ No newline at end of file
diff --git a/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/8k1k/1p1d-tp4-tp4.yaml b/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/8k1k/1p1d-tp4-tp4.yaml
new file mode 100644
index 0000000000..0a938fb48c
--- /dev/null
+++ b/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/8k1k/1p1d-tp4-tp4.yaml
@@ -0,0 +1,121 @@
+name: "qwen3.5-1p1d-tp4-tp4"
+
+sbatch_directives:
+  mem: "0"
+
+dynamo:
+  hash: 46520ca59afe992fb5ef61b3197b2316f8df9b2b
+  install: true
+
+frontend:
+  type: dynamo
+  enable_multiple_frontends: true
+  num_additional_frontends: 1
+  nginx_container: nginx
+
+model:
+  path: "qwen3.5-fp8"
+  container: "lmsysorg/sglang:nightly-dev-cu13-20260709-074bb928"
+  precision: "fp8"
+
+resources:
+  gpu_type: "gb300"
+  gpus_per_node: 4
+  prefill_nodes: 1
+  decode_nodes: 1
+  prefill_workers: 1
+  decode_workers: 1
+
+backend:
+  type: sglang
+
+  prefill_environment:
+    SGLANG_JIT_DEEPGEMM_PRECOMPILE: "0"
+    TORCH_DISTRIBUTED_DEFAULT_TIMEOUT: "3600"
+    TORCH_NCCL_WATCHDOG_TIMEOUT_SEC: "3600"
+    TORCH_NCCL_HEARTBEAT_TIMEOUT_SEC: "3600"
+    PYTHONUNBUFFERED: "1"
+    NCCL_MNNVL_ENABLE: "1"
+    NCCL_CUMEM_ENABLE: "1"
+    SGLANG_DG_CACHE_DIR: "/configs/deepgemm-cache"
+    FLASHINFER_WORKSPACE_BASE: "/configs/flashinfer-cache"
+    SGLANG_DISAGGREGATION_HEARTBEAT_MAX_FAILURE: "100000"
+    SGLANG_DISAGGREGATION_BOOTSTRAP_TIMEOUT: "100000"
+    SGLANG_DISAGGREGATION_WAITING_TIMEOUT: "100000"
+    SGLANG_USE_MESSAGE_QUEUE_BROADCASTER: "0"
+    SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
+    MC_FORCE_MNNVL: "1"
+
+  decode_environment:
+    SGLANG_JIT_DEEPGEMM_PRECOMPILE: "0"
+    TORCH_DISTRIBUTED_DEFAULT_TIMEOUT: "3600"
+    TORCH_NCCL_WATCHDOG_TIMEOUT_SEC: "3600"
+    TORCH_NCCL_HEARTBEAT_TIMEOUT_SEC: "3600"
+    PYTHONUNBUFFERED: "1"
+    NCCL_MNNVL_ENABLE: "1"
+    NCCL_CUMEM_ENABLE: "1"
+    SGLANG_DG_CACHE_DIR: "/configs/deepgemm-cache"
+    FLASHINFER_WORKSPACE_BASE: "/configs/flashinfer-cache"
+    SGLANG_DISAGGREGATION_HEARTBEAT_MAX_FAILURE: "100000"
+    SGLANG_DISAGGREGATION_BOOTSTRAP_TIMEOUT: "100000"
+    SGLANG_DISAGGREGATION_WAITING_TIMEOUT: "100000"
+    SGLANG_DECODE_BOOTSTRAP_TIMEOUT: "1000"
+    SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
+    SGLANG_USE_MESSAGE_QUEUE_BROADCASTER: "0"
+    SGLANG_HEALTH_CHECK_TIMEOUT: "3600"
+    SGLANG_HEALTH_STARTING_OK: "1"
+    SGLANG_ENABLE_HEALTH_ENDPOINT_GENERATION: "0"
+    MC_FORCE_MNNVL: "1"
+    MC_TE_METRIC: "true"
+    SGLANG_HACK_SEQ_BOOTSTRAP_ROOM: "1"
+
+  sglang_config:
+    prefill:
+      served-model-name: "Qwen/Qwen3.5-397B-A17B-FP8"
+      model-path: "/model/"
+      quantization: "fp8"
+      kv-cache-dtype: "fp8_e4m3"
+      trust-remote-code: true
+      attention-backend: "trtllm_mha"
+      tensor-parallel-size: 4
+      mamba-ssm-dtype: "bfloat16"
+      moe-runner-backend: "flashinfer_trtllm"
+      disable-radix-cache: true
+      max-running-requests: 1024
+      mem-fraction-static: 0.8
+      chunked-prefill-size: 16384
+      max-prefill-tokens: 16384
+      context-length: 16384
+      cuda-graph-max-bs: 1024
+      decode-log-interval: 1
+      stream-interval: 50
+      disaggregation-mode: "prefill"
+
+    decode:
+      served-model-name: "Qwen/Qwen3.5-397B-A17B-FP8"
+      model-path: "/model/"
+      quantization: "fp8"
+      kv-cache-dtype: "fp8_e4m3"
+      trust-remote-code: true
+      attention-backend: "trtllm_mha"
+      tensor-parallel-size: 4
+      mamba-ssm-dtype: "bfloat16"
+      moe-runner-backend: "flashinfer_trtllm"
+      disable-radix-cache: true
+      max-running-requests: 1024
+      mem-fraction-static: 0.8
+      chunked-prefill-size: 16384
+      max-prefill-tokens: 16384
+      context-length: 16384
+      cuda-graph-max-bs: 1024
+      decode-log-interval: 1
+      stream-interval: 50
+      disaggregation-mode: "decode"
+
+benchmark:
+  type: "sa-bench"
+  isl: 8192
+  osl: 1024
+  req_rate: "inf"
+  random_range_ratio: 0.8
+  concurrencies: "1x2x4x8x16x32x64x128"
diff --git a/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/8k1k/4p1d-dep4-dep16.yaml b/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/8k1k/4p1d-dep4-dep16.yaml
new file mode 100644
index 0000000000..7ad092cfd4
--- /dev/null
+++ b/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/8k1k/4p1d-dep4-dep16.yaml
@@ -0,0 +1,159 @@
+name: "qwen3.5-4p1d-dep4-dep16"
+
+
+sbatch_directives:
+  mem: "0"
+
+dynamo:
+  hash: 46520ca59afe992fb5ef61b3197b2316f8df9b2b
+  install: true
+
+frontend:
+  type: dynamo
+  enable_multiple_frontends: true
+  num_additional_frontends: 3
+  nginx_container: nginx
+
+model:
+  path: "qwen3.5-fp8"
+  container: "lmsysorg/sglang:nightly-dev-cu13-20260709-074bb928"
+  precision: "fp8"
+
+resources:
+  gpu_type: "gb300"
+  gpus_per_node: 4
+  prefill_nodes: 4
+  decode_nodes: 4
+  prefill_workers: 4
+  decode_workers: 1
+
+backend:
+  type: sglang
+
+  prefill_environment:
+    SGLANG_JIT_DEEPGEMM_PRECOMPILE: "0"
+    NO_COLOR: "1"
+    TORCH_DISTRIBUTED_DEFAULT_TIMEOUT: "3600"
+    TORCH_NCCL_WATCHDOG_TIMEOUT_SEC: "3600"
+    TORCH_NCCL_HEARTBEAT_TIMEOUT_SEC: "3600"
+    PYTHONUNBUFFERED: "1"
+    NCCL_MNNVL_ENABLE: "1"
+    NCCL_CUMEM_ENABLE: "1"
+    MC_FORCE_MNNVL: "1"
+    SGLANG_DG_CACHE_DIR: "/configs/deepgemm-cache"
+    FLASHINFER_WORKSPACE_BASE: "/configs/flashinfer-cache"
+    SGLANG_DISAGGREGATION_HEARTBEAT_MAX_FAILURE: "100000"
+    SGLANG_DISAGGREGATION_BOOTSTRAP_TIMEOUT: "100000"
+    SGLANG_DISAGGREGATION_WAITING_TIMEOUT: "100000"
+    SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
+    SGLANG_USE_MESSAGE_QUEUE_BROADCASTER: "0"
+    SGLANG_DISABLE_TP_MEMORY_INBALANCE_CHECK: "1"
+    SGLANG_HEALTH_STARTING_OK: "1"
+    SGLANG_ENABLE_HEALTH_ENDPOINT_GENERATION: "0"
+
+  decode_environment:
+    SGLANG_JIT_DEEPGEMM_PRECOMPILE: "0"
+    NO_COLOR: "1"
+    TORCH_DISTRIBUTED_DEFAULT_TIMEOUT: "3600"
+    TORCH_NCCL_WATCHDOG_TIMEOUT_SEC: "3600"
+    TORCH_NCCL_HEARTBEAT_TIMEOUT_SEC: "3600"
+    PYTHONUNBUFFERED: "1"
+    NCCL_MNNVL_ENABLE: "1"
+    NCCL_CUMEM_ENABLE: "1"
+    MC_FORCE_MNNVL: "1"
+    MC_TE_METRIC: "true"
+    SGLANG_DG_CACHE_DIR: "/tmp/deepgemm-cache"
+    FLASHINFER_WORKSPACE_BASE: "/configs/flashinfer-cache"
+    SGLANG_DISAGGREGATION_HEARTBEAT_MAX_FAILURE: "100000"
+    SGLANG_DISAGGREGATION_BOOTSTRAP_TIMEOUT: "100000"
+    SGLANG_DISAGGREGATION_WAITING_TIMEOUT: "100000"
+    SGLANG_DECODE_BOOTSTRAP_TIMEOUT: "1000"
+    SGLANG_HACK_SEQ_BOOTSTRAP_ROOM: "1"
+    SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
+    SGLANG_USE_MESSAGE_QUEUE_BROADCASTER: "0"
+    SGLANG_DISABLE_TP_MEMORY_INBALANCE_CHECK: "1"
+    SGLANG_DEEPEP_NUM_MAX_DISPATCH_TOKENS_PER_RANK: "512"
+    SGLANG_HEALTH_CHECK_TIMEOUT: "1800"
+    SGLANG_HEALTH_STARTING_OK: "1"
+    SGLANG_ENABLE_HEALTH_ENDPOINT_GENERATION: "0"
+
+  sglang_config:
+    prefill:
+      served-model-name: "Qwen/Qwen3.5-397B-A17B-FP8"
+      model-path: "/model/"
+      quantization: "fp8"
+      kv-cache-dtype: "fp8_e4m3"
+      trust-remote-code: true
+
+      tensor-parallel-size: 4
+      data-parallel-size: 4
+      expert-parallel-size: 4
+      enable-dp-attention: true
+      enable-dp-lm-head: true
+
+      mamba-scheduler-strategy: "no_buffer"
+      mamba-track-interval: 2048
+      mamba-ssm-dtype: "bfloat16"
+      disaggregation-mode: "prefill"
+      disable-radix-cache: true
+      disaggregation-bootstrap-port: 31000
+      mem-fraction-static: 0.8
+      chunked-prefill-size: 65536
+      load-balance-method: "round_robin"
+      watchdog-timeout: 1000000
+      disable-cuda-graph: true
+      log-level: "info"
+      page-size: 64
+      attention-backend: "trtllm_mha"
+      moe-runner-backend: "flashinfer_trtllm"
+
+    decode:
+      served-model-name: "Qwen/Qwen3.5-397B-A17B-FP8"
+      model-path: "/model/"
+      trust-remote-code: true
+      quantization: "fp8"
+      kv-cache-dtype: "fp8_e4m3"
+
+      tensor-parallel-size: 16
+      data-parallel-size: 16
+      expert-parallel-size: 16
+      enable-dp-attention: true
+      enable-dp-lm-head: true
+      prefill-round-robin-balance: true
+
+      mamba-scheduler-strategy: "no_buffer"
+      mamba-track-interval: 128
+      mamba-ssm-dtype: "bfloat16"
+
+      disaggregation-mode: "decode"
+      disable-radix-cache: true
+      disaggregation-bootstrap-port: 31000
+
+      chunked-prefill-size: 4096
+      context-length: 16384
+      mem-fraction-static: 0.80
+      max-mamba-cache-size: 2048
+      max-running-requests: 2048
+      cuda-graph-max-bs: 128
+      watchdog-timeout: 1000000
+
+      page-size: 64
+      attention-backend: "trtllm_mha"
+      moe-runner-backend: "deep_gemm"
+      moe-a2a-backend: "deepep"
+      deepep-mode: "low_latency"
+      ep-dispatch-algorithm: "static"
+      eplb-algorithm: "deepseek"
+
+      decode-log-interval: 1
+      stream-interval: 50
+
+benchmark:
+  type: "sa-bench"
+  isl: 8192
+  osl: 1024
+  req_rate: "inf"
+  num_prompts_mult: 20
+  num_warmup_mult: 2
+  random_range_ratio: 0.8
+  concurrencies: "1024"
diff --git a/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/8k1k/8p1d-dep4-dep16.yaml b/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/8k1k/8p1d-dep4-dep16.yaml
new file mode 100644
index 0000000000..61da0a4ad8
--- /dev/null
+++ b/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/8k1k/8p1d-dep4-dep16.yaml
@@ -0,0 +1,160 @@
+name: "qwen3.5-8p1d-dep4-dep16"
+
+
+sbatch_directives:
+  mem: "0"
+
+infra:
+  etcd_nats_dedicated_node: true
+
+dynamo:
+  hash: 46520ca59afe992fb5ef61b3197b2316f8df9b2b
+  install: true
+
+frontend:
+  type: dynamo
+  enable_multiple_frontends: true
+  num_additional_frontends: 4
+  nginx_container: nginx
+
+model:
+  path: "qwen3.5-fp8"
+  container: "lmsysorg/sglang:nightly-dev-cu13-20260709-074bb928"
+  precision: "fp8"
+
+resources:
+  gpu_type: "gb300"
+  gpus_per_node: 4
+  prefill_nodes: 8
+  decode_nodes: 4
+  prefill_workers: 8
+  decode_workers: 1
+
+backend:
+  type: sglang
+
+  prefill_environment:
+    SGLANG_JIT_DEEPGEMM_PRECOMPILE: "0"
+    NO_COLOR: "1"
+    TORCH_DISTRIBUTED_DEFAULT_TIMEOUT: "3600"
+    TORCH_NCCL_WATCHDOG_TIMEOUT_SEC: "3600"
+    TORCH_NCCL_HEARTBEAT_TIMEOUT_SEC: "3600"
+    PYTHONUNBUFFERED: "1"
+    NCCL_MNNVL_ENABLE: "1"
+    NCCL_CUMEM_ENABLE: "1"
+    MC_FORCE_MNNVL: "1"
+    SGLANG_DG_CACHE_DIR: "/configs/deepgemm-cache"
+    FLASHINFER_WORKSPACE_BASE: "/configs/flashinfer-cache"
+    SGLANG_DISAGGREGATION_HEARTBEAT_MAX_FAILURE: "100000"
+    SGLANG_DISAGGREGATION_BOOTSTRAP_TIMEOUT: "100000"
+    SGLANG_DISAGGREGATION_WAITING_TIMEOUT: "100000"
+    SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
+    SGLANG_USE_MESSAGE_QUEUE_BROADCASTER: "0"
+    SGLANG_DISABLE_TP_MEMORY_INBALANCE_CHECK: "1"
+    SGLANG_HEALTH_STARTING_OK: "1"
+    SGLANG_ENABLE_HEALTH_ENDPOINT_GENERATION: "0"
+
+  decode_environment:
+    SGLANG_JIT_DEEPGEMM_PRECOMPILE: "0"
+    NO_COLOR: "1"
+    TORCH_DISTRIBUTED_DEFAULT_TIMEOUT: "3600"
+    TORCH_NCCL_WATCHDOG_TIMEOUT_SEC: "3600"
+    TORCH_NCCL_HEARTBEAT_TIMEOUT_SEC: "3600"
+    PYTHONUNBUFFERED: "1"
+    NCCL_MNNVL_ENABLE: "1"
+    NCCL_CUMEM_ENABLE: "1"
+    MC_FORCE_MNNVL: "1"
+    MC_TE_METRIC: "true"
+    SGLANG_DG_CACHE_DIR: "/tmp/deepgemm-cache"
+    FLASHINFER_WORKSPACE_BASE: "/configs/flashinfer-cache"
+    SGLANG_DISAGGREGATION_HEARTBEAT_MAX_FAILURE: "100000"
+    SGLANG_DISAGGREGATION_BOOTSTRAP_TIMEOUT: "100000"
+    SGLANG_DISAGGREGATION_WAITING_TIMEOUT: "100000"
+    SGLANG_DECODE_BOOTSTRAP_TIMEOUT: "1000"
+    SGLANG_HACK_SEQ_BOOTSTRAP_ROOM: "1"
+    SGLANG_MOONCAKE_CUSTOM_MEM_POOL: "True"
+    SGLANG_USE_MESSAGE_QUEUE_BROADCASTER: "0"
+    SGLANG_DISABLE_TP_MEMORY_INBALANCE_CHECK: "1"
+    SGLANG_DEEPEP_NUM_MAX_DISPATCH_TOKENS_PER_RANK: "512"
+    SGLANG_HEALTH_CHECK_TIMEOUT: "1800"
+    SGLANG_HEALTH_STARTING_OK: "1"
+    SGLANG_ENABLE_HEALTH_ENDPOINT_GENERATION: "0"
+
+  sglang_config:
+    prefill:
+      served-model-name: "Qwen/Qwen3.5-397B-A17B-FP8"
+      model-path: "/model/"
+      quantization: "fp8"
+      kv-cache-dtype: "fp8_e4m3"
+      trust-remote-code: true
+
+      tensor-parallel-size: 4
+      data-parallel-size: 4
+      expert-parallel-size: 4
+      enable-dp-attention: true
+      enable-dp-lm-head: true
+
+      mamba-scheduler-strategy: "no_buffer"
+      mamba-track-interval: 2048
+      mamba-ssm-dtype: "bfloat16"
+      disaggregation-mode: "prefill"
+      disable-radix-cache: true
+      disaggregation-bootstrap-port: 31000
+      mem-fraction-static: 0.8
+      chunked-prefill-size: 65536
+      load-balance-method: "round_robin"
+      watchdog-timeout: 1000000
+      disable-cuda-graph: true
+      log-level: "info"
+      page-size: 64
+      attention-backend: "trtllm_mha"
+      moe-runner-backend: "flashinfer_trtllm"
+
+    decode:
+      served-model-name: "Qwen/Qwen3.5-397B-A17B-FP8"
+      model-path: "/model/"
+      trust-remote-code: true
+      quantization: "fp8"
+      kv-cache-dtype: "fp8_e4m3"
+
+      tensor-parallel-size: 16
+      data-parallel-size: 16
+      expert-parallel-size: 16
+      enable-dp-attention: true
+      enable-dp-lm-head: true
+      prefill-round-robin-balance: true
+
+      mamba-scheduler-strategy: "no_buffer"
+      mamba-track-interval: 128
+      mamba-ssm-dtype: "bfloat16"
+
+      disaggregation-mode: "decode"
+      disable-radix-cache: true
+      disaggregation-bootstrap-port: 31000
+
+      chunked-prefill-size: 4096
+      context-length: 16384
+      mem-fraction-static: 0.80
+      max-mamba-cache-size: 2048
+      max-running-requests: 2048
+      cuda-graph-max-bs: 128
+      watchdog-timeout: 1000000
+
+      page-size: 64
+      attention-backend: "trtllm_mha"
+      moe-runner-backend: "deep_gemm"
+      moe-a2a-backend: "deepep"
+      deepep-mode: "low_latency"
+      ep-dispatch-algorithm: "static"
+      eplb-algorithm: "deepseek"
+
+      decode-log-interval: 1
+      stream-interval: 50
+
+benchmark:
+  type: "sa-bench"
+  isl: 8192
+  osl: 1024
+  req_rate: "inf"
+  random_range_ratio: 0.8
+  concurrencies: "2048x4096"
diff --git a/configs/nvidia-master.yaml b/configs/nvidia-master.yaml
index 6be8e006f9..3d9e46399b 100644
--- a/configs/nvidia-master.yaml
+++ b/configs/nvidia-master.yaml
@@ -14563,3 +14563,111 @@ glm5-fp4-gb300-dynamo-trt-mtp:
           ep: 16
           dp-attn: true
 
+
+qwen3.5-fp8-gb300-dynamo-sglang:
+  image: lmsysorg/sglang:nightly-dev-cu13-20260709-074bb928
+  model: Qwen/Qwen3.5-397B-A17B-FP8
+  model-prefix: qwen3.5
+  runner: gb300
+  precision: fp8
+  framework: dynamo-sglang
+  multinode: true
+  disagg: true
+  scenarios:
+    fixed-seq-len:
+    - isl: 1024
+      osl: 1024
+      search-space:
+      # 1P1D STP: TP4 prefill + TP4 decode (pure tensor parallel). 2 nodes (1+1).
+      - spec-decoding: "none"
+        conc-list: [1, 2, 4, 8, 16, 32, 64]
+        prefill:
+          num-worker: 1
+          tp: 4
+          ep: 1
+          dp-attn: false
+          additional-settings:
+          - "CONFIG_FILE=recipes/sglang/qwen3.5/gb300-fp8/1k1k/1p1d-tp4-tp4.yaml"
+        decode:
+          num-worker: 1
+          tp: 4
+          ep: 1
+          dp-attn: false
+      # 1P1D wide-EP: prefill DEP4 + decode DEP16. 5 nodes (1+4).
+      - spec-decoding: "none"
+        conc-list: [512, 1024, 2048]
+        prefill:
+          num-worker: 1
+          tp: 4
+          ep: 4
+          dp-attn: true
+          additional-settings:
+          - "CONFIG_FILE=recipes/sglang/qwen3.5/gb300-fp8/1k1k/1p1d-dep4-dep16.yaml"
+        decode:
+          num-worker: 1
+          tp: 16
+          ep: 16
+          dp-attn: true
+      # 2P1D wide-EP: 2 prefill DEP4 + decode DEP16. 6 nodes (2+4).
+      - spec-decoding: "none"
+        conc-list: [4096]
+        prefill:
+          num-worker: 2
+          tp: 4
+          ep: 4
+          dp-attn: true
+          additional-settings:
+          - "CONFIG_FILE=recipes/sglang/qwen3.5/gb300-fp8/1k1k/2p1d-dep4-dep16.yaml"
+        decode:
+          num-worker: 1
+          tp: 16
+          ep: 16
+          dp-attn: true
+    - isl: 8192
+      osl: 1024
+      search-space:
+      # 1P1D STP: TP4 prefill + TP4 decode (pure tensor parallel). 2 nodes (1+1).
+      - spec-decoding: "none"
+        conc-list: [1, 2, 4, 8, 16, 32, 64, 128]
+        prefill:
+          num-worker: 1
+          tp: 4
+          ep: 1
+          dp-attn: false
+          additional-settings:
+          - "CONFIG_FILE=recipes/sglang/qwen3.5/gb300-fp8/8k1k/1p1d-tp4-tp4.yaml"
+        decode:
+          num-worker: 1
+          tp: 4
+          ep: 1
+          dp-attn: false
+      # 4P1D wide-EP: 4 prefill DEP4 + decode DEP16. 8 nodes (4+4).
+      - spec-decoding: "none"
+        conc-list: [1024]
+        prefill:
+          num-worker: 4
+          tp: 4
+          ep: 4
+          dp-attn: true
+          additional-settings:
+          - "CONFIG_FILE=recipes/sglang/qwen3.5/gb300-fp8/8k1k/4p1d-dep4-dep16.yaml"
+        decode:
+          num-worker: 1
+          tp: 16
+          ep: 16
+          dp-attn: true
+      # 8P1D wide-EP: 8 prefill DEP4 + decode DEP16. 12 nodes (8+4).
+      - spec-decoding: "none"
+        conc-list: [2048, 4096]
+        prefill:
+          num-worker: 8
+          tp: 4
+          ep: 4
+          dp-attn: true
+          additional-settings:
+          - "CONFIG_FILE=recipes/sglang/qwen3.5/gb300-fp8/8k1k/8p1d-dep4-dep16.yaml"
+        decode:
+          num-worker: 1
+          tp: 16
+          ep: 16
+          dp-attn: true
diff --git a/perf-changelog.yaml b/perf-changelog.yaml
index be28208ab4..406e288bf5 100644
--- a/perf-changelog.yaml
+++ b/perf-changelog.yaml
@@ -4716,3 +4716,11 @@
     - "Clean the export envs"
     - "Enable two batch overlap"
   pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/2093
+
+- config-keys:
+    - qwen3.5-fp8-gb300-dynamo-sglang
+  description:
+    - "Add Qwen3.5-397B-A17B-FP8 GB300 disaggregated multinode SGLang benchmarks via Dynamo"
+    - "Image: lmsysorg/sglang:nightly-dev-cu13-20260709-074bb928"
+    - "6 topologies across 1k/1k and 8k/1k: 1P1D TP4 STP + wide-EP (DEP4 prefill / DEP16 decode) from 1P1D up to 8P1D, recipes under benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5/gb300-fp8/"
+  pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/2137
diff --git a/runners/launch_gb300-nv.sh b/runners/launch_gb300-nv.sh
index 5328ded02d..150784fb4e 100644
--- a/runners/launch_gb300-nv.sh
+++ b/runners/launch_gb300-nv.sh
@@ -74,8 +74,13 @@ elif [[ $MODEL_PREFIX == "qwen3.5" && $PRECISION == "fp4" ]]; then
     # Qwen3.5 sglang recipes (qwen3.5-fp4).
     export MODEL_PATH=/scratch/models/Qwen3.5-397B-A17B-NVFP4
     export SRT_SLURM_MODEL_PREFIX="qwen3.5-fp4"
+elif [[ $MODEL_PREFIX == "qwen3.5" && $PRECISION == "fp8" ]]; then
+    # SRT_SLURM_MODEL_PREFIX must match the model.path alias used in our
+    # Qwen3.5 sglang recipes (qwen3.5-fp8).
+    export MODEL_PATH=/scratch/models/Qwen3.5-397B-A17B-FP8
+    export SRT_SLURM_MODEL_PREFIX="qwen3.5-fp8"
 else
-    echo "Unsupported model: $MODEL_PREFIX-$PRECISION. Supported models are: dsr1-fp4, dsr1-fp8, dsv4-fp4, glm5-fp4, glm5-fp8, minimaxm2.5-fp4, minimaxm2.5-fp8, kimik2.5-fp4, qwen3.5-fp4"
+    echo "Unsupported model: $MODEL_PREFIX-$PRECISION. Supported models are: dsr1-fp4, dsr1-fp8, dsv4-fp4, glm5-fp4, glm5-fp8, minimaxm2.5-fp4, minimaxm2.5-fp8, kimik2.5-fp4, qwen3.5-fp4, qwen3.5-fp8"
     exit 1
 fi
 
@@ -184,10 +189,21 @@ elif [[ $FRAMEWORK == "dynamo-sglang" && $MODEL_PREFIX == "glm5.1" ]]; then
     cd "$SRT_REPO_DIR"
     git checkout main
 elif [[ $FRAMEWORK == "dynamo-sglang" && $MODEL_PREFIX == "qwen3.5" ]]; then
-    # Overlay our version-controlled Qwen3.5 recipes onto the submission branch.
+    # Overlay our version-controlled Qwen3.5 recipes onto the srt-slurm checkout.
+    # fp8 recipes pin dynamo by commit hash (source install), which needs the
+    # cargo/maturin bootstrap that only exists on srt-slurm:main — the
+    # sa-submission-q2-2026 sglang install path assumes maturin ships in the
+    # image, and the lmsysorg/sglang nightly-dev-cu13 image doesn't include it.
+    # Same branch the identical gb200-fp8 recipes run on. fp4 recipes pin
+    # dynamo by version (pip install) and stay on the submission branch they
+    # were validated against.
     git clone https://github.com/NVIDIA/srt-slurm.git "$SRT_REPO_DIR"
     cd "$SRT_REPO_DIR"
-    git checkout sa-submission-q2-2026
+    if [[ $PRECISION == "fp8" ]]; then
+        git checkout main
+    else
+        git checkout sa-submission-q2-2026
+    fi
     mkdir -p recipes/sglang/qwen3.5
     cp -rT "$GITHUB_WORKSPACE/benchmarks/multi_node/srt-slurm-recipes/sglang/qwen3.5" recipes/sglang/qwen3.5
 elif [[ $FRAMEWORK == "dynamo-vllm" && $MODEL_PREFIX == "minimaxm3" ]]; then
@@ -308,9 +324,12 @@ sed -i "s/^name:.*/name: \"${RUNNER_NAME}\"/" "$CONFIG_PATH"
 # the GHA runner host (im-gb300-login-02, an x86 login node). It's required
 # whenever model.path resolves to the node-local /scratch NVMe that the login
 # node can't see:
-#   - the agentic path (DSv4-Pro checkpoint), and
+#   - the agentic path (DSv4-Pro checkpoint),
 #   - glm5.1, whose GLM-5.1-NVFP4 weights are prestaged on the compute-node
-#     /scratch/models.
+#     /scratch/models, and
+#   - qwen3.5 fp8, whose weights are also on the compute-node /scratch/models
+#     and which runs on srt-slurm:main (the branch that has the preflight;
+#     qwen3.5 fp4 runs on sa-submission-q2-2026, which has none).
 # The engine still fails loudly at runtime if the path is genuinely missing on
 # the compute node. Other fixed-seq-len recipes resolve model.path to a
 # login-visible location, so keep the precheck enforced for them.
@@ -318,7 +337,7 @@ SRTCTL_APPLY_ARGS=(
     -f "$CONFIG_FILE"
     --tags "gb300,${MODEL_PREFIX},${PRECISION},${ISL}x${OSL},infmax-$(date +%Y%m%d)"
 )
-if [[ "$IS_AGENTIC" == "1" || "$MODEL_PREFIX" == "glm5.1" ]]; then
+if [[ "$IS_AGENTIC" == "1" || "$MODEL_PREFIX" == "glm5.1" || ( "$MODEL_PREFIX" == "qwen3.5" && "$PRECISION" == "fp8" ) ]]; then
     SRTCTL_APPLY_ARGS+=(--no-preflight)
 fi
 if [[ -n "$SRTCTL_SETUP_SCRIPT" ]]; then