AssemblyAI / AI & LLM

AssemblyAI Async summarization/auto_chapters params stop working (400) shutdown date

With the upgrade, the legacy summarization and auto_chapters parameters for async transcription are deprecated and will stop working on September 15, 2026 — after that date, requests setting either field will return a…

R.I.P.killed 33 days ago
Change
Shutdown
Effective
Sep 15, 2026
Replacement
none named; check the source
Source
assemblyai.com
Vendor's words
With the upgrade, the legacy summarization and auto_chapters parameters for async transcription are deprecated and will stop working on September 15, 2026 — after that date, requests setting either field will return a 400 error. Migrating is a config change to the new Summarization feature. If you u

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