MAI-Code-1-Flash

Claims and evidence

• Released 2 June 2026Gradual rollout to GitHub Copilot individual users in Visual Studio Code, starting with a limited set of users. ● Primary source[1]dateline; first paragraph [2]Model Summary: Release date [4]
• Deprecated 11 August 2026Date of the deprecation notice. ● Primary source[5]
• Retired 10 September 2026GitHub calls this date the deprecation date; on it the model was deprecated across all Copilot experiences, its only channel. ● Primary source[3] [5]
• Available on more GitHub Copilot surfaces 18 June 2026 ● Primary source[6]
• Generally available for Copilot Business and Enterprise 26 June 2026 ● Primary source[7]

• Status RetiredGitHub deprecated it across all GitHub Copilot experiences on 2026-09-10 and filed the post under Retired; GitHub Copilot was its only distribution channel per the model card. ● Primary source[3] [2]Distribution channels
• Replaced by MAI-Code-1.1-FlashSuggested alternative in GitHub Copilot. ● Primary source[5] [3]

• Derived from (other) MAI-Thinking-1Training started from MAI-Thinking-1's mid-training checkpoint and continued with supervised fine-tuning, a further mid-training phase on synthetic agentic tasks and reinforcement learning. ● Primary source[2]Training disclosure; Model dependencies

• Change · Size Smaller: 5B active and 137B total parameters, against 35B active and about 1T total for MAI-Thinking-1, from whose mid-training checkpoint it was trained.Compared with MAI-Thinking-1 ● Primary source[2]Model Summary: Parameters; Training disclosure [8]Medium-sized model, with strong software engineering performance
• Change · Other Specialised for coding: trained further on synthetic agentic tasks and with reinforcement learning and the GitHub Copilot production harness; offered only inside GitHub Copilot.Compared with MAI-Thinking-1 ● Primary source[2]Training disclosure; Distribution channels [1]

• Input text ● Primary source[2]Model Summary: Inputs
• Output text ● Primary source[2]Model Summary: Outputs
• Context window 256K tokens tokensThe numeric value reads K as 1,000; the source does not say. ● Primary source[2]Model Summary: Context length
• Parameters 137B total, 5B activeSparse mixture-of-experts; the June launch post gives only the 5 billion active parameters. ● Primary source[2]Model Summary: Parameters [9]Our Models

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