QA Verification Complete - PASSED ✅ Verification Date: 2025-12-21 QA Report: /tmp/qa-LCA-6.md All tests passed (91 passed, 5 skipped). Manual API testing confirmed proper error handling. OpenAPI spec matches OpenAI specification. Implementation is production-ready.

## Implementation Complete ### Changes Made 1. **routes.py** (src/librechat_audio/routes.py:46-120) - Added /v1/audio/transcriptions POST endpoint matching OpenAI spec - Accepts multipart form data: file (required), model (required), language, prompt, response_format, temperature - Supports response formats: json, text, verbose_json, srt, vtt - Uses LocalSTTClient (parakeet-mlx) for transcription - Returns proper HTTP error codes (400, 500, 503) 2. **tests/test_transcriptions.py** (new file, 238 lines) - 14 tests covering all functionality - Tests for required parameters, response formats, optional parameters, error handling ### Verification - All 50 unit tests passing - Committed as f5f0352 ### QA Command curl -X POST http://localhost:8000/v1/audio/transcriptions -F file=@test.wav -F model=whisper-1