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
Moonshot AI / current
Moonshot's Kimi K3, repeatedly ranked among the strongest open-weight models.
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.
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.
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.
Specifications and positioning checked against provider documentation.
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