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Moonshot releases Kimi K3.1 Pro with K3 parameter constraints

By PulseAugur Editorial · [1 sources] ·

Moonshot has released Kimi K3.1 Pro, available via its API and on AIHubMix. This new model adheres to Kimi K3's parameter constraints, meaning code developed for K3 should be compatible with K3.1 Pro with minor adjustments. However, users migrating from older K2.x models should be aware that Moonshot plans to retire the K2 series by the end of 2026, with new users losing access sooner. The K3.1 Pro model exhibits specific behaviors, such as only allowing a temperature of 1, and its 'thinking' parameter cannot be disabled, with 'low' effort settings still resulting in significant token usage. AI

IMPACT This release offers a new model with specific parameter constraints, potentially impacting developers migrating from older versions or seeking particular performance characteristics.

RANK_REASON New model release from a frontier lab (Moonshot). [lever_c_demoted from frontier_release: ic=1 ai=1.0]

Read on dev.to — LLM tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Moonshot releases Kimi K3.1 Pro with K3 parameter constraints

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Significant
New model release from a frontier lab (Moonshot). [lever_c_demoted from frontier_release: ic=1 ai=1.0]
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model release, product
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COVERAGE [1]

  1. dev.to — LLM tag TIER_1 English(EN) · AIHubMix ·

    Kimi K3.1 Pro Migration Guide: the 400s, the Quiet Failures, and a Claude Code / Codex Config

    <p><strong>Result first.</strong> Kimi K3.1 Pro is live on Moonshot's API and on AIHubMix as <code>kimi-k3.1-pro</code>, and in Kimi Code as <code>k3.1-pro</code>. Moonshot gives it K3's parameter constraints, so code that runs on K3 moves with a model-ID change and a new session…

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