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Kimi K3.1 Pro: A 2.8T Open-Weight Model That Nearly Matches Claude Opus 5.5 on Coding

This story is from 2026-10-30. It is preserved in the archive; the latest stories are on the live feed.

Kimi K3.1 Pro: A 2.8T Open-Weight Model That Nearly Matches Claude Opus 5.5 on Coding The most interesting model release this week didn't come from OpenAI or Anthropic. On October 23, Moonshot AI shipped Kimi K3.1 Pro — a post-trained version of Kimi K3 (2.8T total parameters, ~104B active per toke…

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  1. 2026-10-30 14:37 · DEV Community — Machine Learning
    Kimi K3.1 Pro: A 2.8T Open-Weight Model That Nearly Matches Claude Opus 5.5 on Coding

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