chat-latest changelog

Every change to chat-latest that Modelpeers has recorded, newest first, each with the source it came from. The record starts May 5, 2026.

All (5)Breaking changes (5)

October 2026

chat-latest

Model at OpenAI

Default change3w

chat-latest now tracks the ChatGPT model for Plus, Pro, Business and Enterprise

chat-latest was updated to the latest model in ChatGPT for Plus, Pro, Business and Enterprise users, and OpenAI recommends the GPT-6 family for production.

Who is affected:: Apps calling chat-latest.
What to do:: Re-run evals. Pin a GPT-6 model for production.

August 2026

chat-latest

Model at OpenAI

Default changeAug 6, 2026

chat-latest now tracks the Plus and Pro ChatGPT model

chat-latest now points to the latest model available in ChatGPT for Plus and Pro users, and OpenAI recommends GPT-5.6 Sol for production.

Who is affected:: Apps calling chat-latest.
What to do:: Re-run evals. Pin gpt-5.6-sol for production.

June 2026

chat-latest

Model at OpenAI

Default changeJun 24, 2026

chat-latest snapshot updated

OpenAI updated the chat-latest snapshot to the latest Instant model used in ChatGPT.

Who is affected:: Apps calling chat-latest.
What to do:: Re-run evals if you depend on chat-latest.

May 2026

chat-latest

Model at OpenAI

Default changeMay 28, 2026

chat-latest snapshot updated

OpenAI updated the chat-latest snapshot to the latest Instant model used in ChatGPT.

Who is affected:: Apps calling chat-latest.
What to do:: Re-run evals if you depend on chat-latest.

chat-latest

Model at OpenAI

Default changeMay 5, 2026

chat-latest alias released, pointing at the ChatGPT Instant model

OpenAI released a chat-latest snapshot that points to the Instant model currently used in ChatGPT and recommends GPT-5.5 for production API use.

Who is affected:: Apps calling chat-latest, which changes whenever OpenAI updates it.
What to do:: Pin a dated model for production. Use chat-latest only for testing.

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