Kimi K3.1 Pro 'closing in on Claude Opus 5.5'

For builders, little changes today. The weights are only promised for November 4. The API price of $2/$10 per million tokens equals GPT-6.1 Sol, so there is no cost advantage yet, and the Highspeed tier costs twice as much. For fintech teams, Chinese model origin already rules it out at US banks and federal vendors, and Moonshot has deliberately weakened the hacking ability security teams would want, so a three-point index gap doesn't give regulated buyers anything they can deploy.

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