fix(openai): honor realtime base URL env fallback (#1650)

Co-authored-by: rosetta-livekit-bot[bot] <282703043+rosetta-livekit-bot[bot]@users.noreply.github.com>

Author: rosetta-livekit-bot[bot]

.changeset/openai-realtime-base-url-env.md

@@ -0,0 +1,5 @@
+---
+"@livekit/agents-plugin-openai": patch
+---
+
+fix(plugin-openai): honor OPENAI_BASE_URL for Realtime defaults.

plugins/openai/src/realtime/realtime_model.ts

@@ -225,7 +225,7 @@ export class RealtimeModel extends llm.RealtimeModel {
     this._options = {
       ...DEFAULT_REALTIME_MODEL_OPTIONS,
       ...optionsWithoutModalities,
-      baseURL: options.baseURL || BASE_URL,
+      baseURL: options.baseURL || process.env.OPENAI_BASE_URL || BASE_URL,
       apiKey,
       isAzure,
       model: options.model || DEFAULT_REALTIME_MODEL_OPTIONS.model,

turbo.json

@@ -46,6 +46,7 @@
     "OCTOAI_TOKEN",
     "OPENAI_API_KEY",
     "OPENAI_API_VERSION",
+    "OPENAI_BASE_URL",
     "PERPLEXITY_API_KEY",
     "TELNYX_API_KEY",
     "TAVUS_API_KEY",