AssemblyAI API · Endpoint removal
/lemur/v3/* stops working
Stopped working
Calls to /lemur/v3/* on AssemblyAI API stopped working on March 31, 2026.
What to use instead of these calls
Migrate to the LLM Gateway.
Calls it hits
/lemur/v3/*
LeMUR will be deprecated on March 31, 2026 and will no longer work after this date.
Facts
- API
- AssemblyAI API
api.assemblyai.com - Kind
- Endpoint removal
- Announced
- November 18, 2025
- Takes effect
- March 31, 2026
- Calls after that day
- Fail
- Source
- Announcement
- Last updated
More from AssemblyAI API
- /v2/realtime/ws stops working Stopped working
- auto_chapters on POST /v2/transcript stops working Stopped working
- summarization on POST /v2/transcript stops working Stopped working
- summary_model on POST /v2/transcript stops working Stopped working
- POST /lemur/v3/generate/action-items stops working Stopped working
- speech_model on POST /v2/transcript is deprecated Deprecated, no date