
Kimi K3.1 Pro: What Changed, Prices and Business Use (2026)
Moonshot AI released Kimi K3.1 Pro on 23 October 2026: same 2.8 trillion parameter model as Kimi K3, retrained for coding and agent work, 1 million token context, USD 2 per million input tokens and USD 10 per million output, open weights promised by 4 November. What changed, what a task costs, and when a company should use it.
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