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Microsoft's MAI Code 1.1 Flash underperforms against Deepseek V4 Flash

Microsoft has launched MAI Code 1.1 Flash, a new code model for GitHub Copilot that is reportedly 25% more token-efficient and costs 75% less than its predecessor. However, benchmarks indicate that this new model is outperformed by Deepseek V4 Flash in both price and performance. This development suggests a trend where Microsoft promotes open AI while utilizing less efficient proprietary models to maintain profit margins. AI

IMPACT This release may impact developer workflows and cost-efficiency for GitHub Copilot users, though its performance relative to competitors like Deepseek is a key consideration.

RANK_REASON This is a product release for an existing service (GitHub Copilot) rather than a core frontier model release.

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Microsoft's MAI Code 1.1 Flash underperforms against Deepseek V4 Flash

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  1. The Decoder TIER_1 English(EN) · Matthias Bastian ·

    Microsoft's new MAI Code 1.1 Flash gets crushed by Deepseek on both price and performance

    <p><img alt="" class="attachment-full size-full wp-post-image" height="608" src="https://the-decoder.com/wp-content/uploads/2026/06/microsoft_logo_red_pink.png" style="height: auto; margin-bottom: 10px;" width="1088" /></p> <p> Microsoft has released MAI Code 1.1 Flash, a code mo…