New model
GPT-6.1 Sol in Codex and ChatGPT WorkNew model
GPT-6 Sol and Luna in Codex and ChatGPT WorkModel access
GPT-5.3-Codex-Spark deprecatedModel access
GPT-5.5 retires from ChatGPT, ChatGPT Work, and Codex on October 14Feature
Codex MCP server removedNew model
Released GPT-6 Astra, our most capable model, built for the hardest end-to-end work.Model access
Codex MCP server command deprecatedFeature
Codex and ChatGPT updatesFeature
GitLab support in Codex cloud (Beta)Model access
GPT-5.4 and GPT-5.4 mini retire from Codex on August 31Feature
Sign in with ChatGPT (beta)Feature
ChatGPT Voice and multi-folder projects 26.715New model
Released the GPT-5.6 model family, including GPT-5.6 Sol for frontier capability, GPT-5.6 Terra for a balance of intelligence and cost, and GPT-5.6 Luna for efficient, high-volume workloads.Feature
Codex joins the ChatGPT desktop app 26.707Model access
Codex Remote reaches general availability 26.623Feature
More Codex features in the EEA, UK, and Switzerland 26.611Feature
Use Codex with Amazon BedrockModel access
GPT-5.3-Codex and GPT-5.2 deprecatedFeature
Work with Codex from anywhere 26.513Feature
Codex for Chrome