Kimi K3, a new 2.8 trillion parameter model, has been released, featuring a 1-million-token context window and native vision capabilities. While it trails top proprietary models like Claude Fable 5 and GPT 5.6 Sol in overall performance, Kimi K3 demonstrates frontier-level intelligence and excels in long-horizon coding and reasoning tasks. The model is available via Kimi.com, Kimi Work, Kimi Code, and the Kimi API, with full model weights to be released by July 27, 2026. It is noted for its high verbosity and cost compared to similar models, though its time to first token is faster than average. AI
IMPACT Sets a new benchmark for open-source model size and context window, potentially driving further competition in the high-parameter count space.
RANK_REASON Frontier-lab model release with system card. [lever_c_demoted from frontier_release: ic=2 ai=1.0]
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- Attention Residuals
- Claude Fable 5
- GPT 5.5
- GPT 5.6 Sol
- Kimi API
- Kimi Code
- Kimi.com
- Kimi Delta Attention
- Kimi K2
- Kimi k3
- Kimi Work
- mixture of experts
- NVIDIA H200
- Open Frontier Intelligence
- Opus 4.8
- Stable LatentMoE
- Artificial Analysis Intelligence Index
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