OpenAI Assistants API
Shuts down August 26, 2026 — 2 days from today.
| Vendor | OpenAI |
|---|---|
| What ends | Assistants API |
| Announced | August 20, 2025 |
| Shutdown | August 26, 2026 |
| Notice given | 371 days |
| Replacement | Responses API and Conversations API |
| Source | Vendor documentation |
What is affected
- /v1/assistants
- /v1/threads
- /v1/runs
Roughly one year of notice. Requests to the legacy endpoints stop working on the shutdown date.
How to check whether this affects you
Search your codebase for the identifiers above. They commonly appear in environment variables and configuration files as well as in source, so grep your deployment config, not just your application code.
Find out before it breaks, not after
Stack Sunset watches the vendor announcement layer that dependency scanners miss — API sunsets, licence changes, pricing shifts — and tells you which of the things you depend on is about to stop working.
Watch on GitHub