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Back to changelog We will deprecate the following models across all GitHub Copilot experiences including Copilot Chat, inline edits, ask and agent modes, and code completions , with the exception of GPT-5.2-Codex in Copilot Code Review, on June 1st, 2026: Model Deprecation date Suggested alternativ… …
Back to changelog GPT-5.5, OpenAI’s latest GPT model, is now rolling out on GitHub Copilot. In our early testing, GPT-5.5 delivers its strongest performance on complex, multi-step agentic coding task and resolves real-world coding challenges previous GPT models couldn’t. …
Back to changelog As announced on March 18, 2026, GPT-5.3-Codex is now the base model for all Copilot Business and Copilot Enterprise organizations, replacing GPT-4.1. …
… GitHub Copilot data has shown that GPT-5.3-Codex has a significantly high code survival rate among enterprise customers. GPT-5.3-Codex as the newest base model GPT-5.3-Codex will also be available as the newest base model for Copilot, replacing GPT-4.1. …
Back to changelog GPT-5.4 mini, OpenAI’s latest fast version of their agentic coding model GPT-5.4, is now rolling out in GitHub Copilot. In early tests, GPT‑5.4 mini appears to be OpenAI’s highest-performing mini model yet. …
Back to changelog GPT-5.4 mini is now generally available to Copilot Student plan via Copilot auto model selection . …
Back to changelog Starting today, in our Copilot Student plan, we are removing GPT-5.3-Codex from the model picker. …
… Model Deprecation date Suggested alternative GPT-5.1 2026-04-15 GPT-5.3-Codex GPT-5.1-Codex 2026-04-01 GPT-5.3-Codex GPT-5.1-Codex-Mini 2026-04-01 GPT-5.3-Codex GPT-5.1-Codex-Max 2026-04-01 GPT-5.3-Codex Please update your workflows and integrations to use supported models. …
Back to changelog We will deprecate the following models across all GitHub Copilot experiences including Copilot Chat, inline edits, ask and agent modes, and code completions : Model Deprecation date Suggested alternative Gemini 3 Pro 2026-03-26 Gemini 3.1 Pro GPT-5.1 2026-04-15 GPT-5.4 GPT-5.1-Cod… …
Back to blog All New Releases Improvements Retired Filters 0 selected May.15 Retired Grok Code Fast 1 deprecated copilot May.12 Retired Synchronous SBOM API deprecated supply chain security May.08 Retired Upcoming deprecation of Grok Code Fast 1 copilot May.07 Retired Upcoming deprecation of GPT-4.…