Moonshot AI has released Kimi K3.1 Pro, an updated version of its open-weight K3 model, claiming it rivals Claude Opus 5.5 on coding tasks. The company also announced it removed cyber-related training data before the public release of the weights, citing a desire to limit the proliferation of offensive AI capabilities. Kimi K3.1 Pro is available via API and within Moonshot's applications, with full weights expected by early November. AI
IMPACT This release offers a strong open-weight alternative for coding tasks, potentially influencing the development of AI agents and tools.
RANK_REASON Frontier-lab model release with system card and competitive benchmark claims. [lever_c_demoted from frontier_release: ic=1 ai=1.0]
- Anthropic
- Claude Opus 5.5
- DeepSeek
- GPT 5.6 "Sol"
- Hallu Bench Hard
- K3
- Kimi Code Bench 3.0
- Kimi K3.1 Pro
- Moonshot AI
- Nvidia
- OpenAI
- OrcaRouter
- V4.1 Flash
- xdev-bench-hard
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