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Kimi K3.1 is coming in August — a Moonshot researcher has confirmed it, and it stays open-weight

Kimi K3.1 Prorumorby ArtificialWatch

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A Moonshot researcher has publicly confirmed that Kimi K3.1 is in progress, with an August target. The claims attached to it: Mythos-level capability retained, faster inference and lower latency, more reliable coding and autonomous agent workflows, fewer unnecessary reasoning steps, and open weights again.

'Fewer unnecessary reasoning steps' is the item to watch. K3's weakness in practice has not been capability, it has been token economics — long deliberation on problems that did not need it. That is a post-training target, and DeepSeek just demonstrated this week what post-training alone can move.

The rest of this analysis — 2 more paragraphs — plus the source, is on the paid plans.

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Claude Opus 5 went live at 16:51 UTC. Members had the alert at 16:52. Free gets a Chrome push and an email about 15 minutes after members.

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