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Add TOPIC_DETECTION_MODEL env var for topic detection model override #44

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Add TOPIC_DETECTION_MODEL env var for topic detection model override #44

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6 changes: 6 additions & 0 deletions src/config/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -136,6 +136,10 @@ const zaiModel = process.env.ZAI_MODEL?.trim() || "GLM-4.7";
const vertexApiKey = process.env.VERTEX_API_KEY?.trim() || process.env.GOOGLE_API_KEY?.trim() || null;
const vertexModel = process.env.VERTEX_MODEL?.trim() || "gemini-2.0-flash";

// Topic detection model override
// Values: "default" (use main model) or a model name to redirect topic detection to a lighter model
const topicDetectionModel = (process.env.TOPIC_DETECTION_MODEL ?? "default").trim();

// Hot reload configuration
const hotReloadEnabled = process.env.HOT_RELOAD_ENABLED !== "false"; // default true
const hotReloadDebounceMs = Number.parseInt(process.env.HOT_RELOAD_DEBOUNCE_MS ?? "1000", 10);
Expand Down Expand Up @@ -596,6 +600,7 @@ var config = {
modelProvider: {
type: modelProvider,
defaultModel,
topicDetectionModel,
// Hybrid routing settings
preferOllama,
fallbackEnabled,
Expand Down Expand Up @@ -885,6 +890,7 @@ function reloadConfig() {
config.modelProvider.preferOllama = process.env.PREFER_OLLAMA === "true";
config.modelProvider.fallbackEnabled = process.env.FALLBACK_ENABLED !== "false";
config.modelProvider.fallbackProvider = (process.env.FALLBACK_PROVIDER ?? "databricks").toLowerCase();
config.modelProvider.topicDetectionModel = (process.env.TOPIC_DETECTION_MODEL ?? "default").trim();

// Log level
config.logger.level = process.env.LOG_LEVEL ?? "info";
Expand Down
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