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Moonshot AI / current

Kimi K3

Moonshot's Kimi K3, repeatedly ranked among the strongest open-weight models.

Context1M
ModalityText · Image
AccessWeights · API
ReasoningAgentic

Where it fits.

Combines a one-million-token context with agentic training aimed at long sequences of continuous execution. Kimi K3 is Moonshot AI's open-weight flagship with a 1M-token context and agentic post-training. Public trackers place it at or near the top of open-weight rankings, with a successor K3.1 scheduled for mid-October 2026 and a much larger K4 in training.

02

Core capabilities

  • 1M-token context for long agent sessions
  • Open weights for self-hosted deployment
  • Agentic training for continuous multi-step execution
  • Strong Chinese and multilingual performance
03

Best-fit workflows

  • Long continuous agent runs
  • Open-weight self-hosting
  • Chinese and multilingual work
04 / OPERATIONS

From evaluation
to production.

Deployment notes

Good candidate where open weights and long agent runs both matter. Pin a specific checkpoint, monitor the K3.1 migration path, and benchmark on your own evals rather than relying on leaderboard positions.

Watch before choosing

Kimi K3.1 and larger successors are imminent; plan for rapid snapshot churn. Rapid release cadence makes snapshot pinning essential; benchmark claims move quickly across aggregators.

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Family & versions

Specifications and positioning checked against provider documentation.

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