release
OpenAI SDK v2.51.0
July 31, 2026
v2.51.0, released 2026-07-30, adds an API fast tier and updates helper methods to include support for it. The change is notable because it extends a new tier across both the core API and helper methods, suggesting a broader rollout rather than a one-off endpoint update.
2.51.0 (2026-07-30) Full Changelog: v2.50.0...v2.51.0 Features api: fast tier ( 8808ed2 ) Bug Fixes api: add fast tier to helper methods ( 6064126 )
Source: github.com