Dev Tools · 2h ago
OpenAI Assistants API Shutdown: Migrate by Aug 26, 2026
OpenAI will turn off the Assistants API on August 26, 2026, with no grace period or migration tool. Developers must move to the Responses API and Conversations, which replace threads and runs with synchronous calls. The new model uses Prompts, Conversations, Responses, and Items, eliminating the need for polling loops.
Meridian48 take
The lack of a migration tool and automatic thread transfer means developers with complex conversation state face a manual, error-prone rewrite.
Read the full reporting
Migrating off the OpenAI Assistants API before it shuts off (Aug 26, 2026) →
DEV Community
openai-apiapi-migration