# Moonshot AI releases Kimi K3, a 2.8-trillion-parameter open-weight model

> Moonshot AI, the Beijing lab behind the Kimi models, has released K3, an open-weight system with 2.8 trillion total parameters that uses a mixture-of-experts design, activating just 16 of its 896 experts for any given task. That sparse approach keeps the running cost manageable while pushing the model into frontier territory: Moonshot says K3 performs at roughly the level of GPT-5.6 and Anthropic's Opus 4.8, and it ships with a one-million-token context window aimed at long coding sessions and multi-step agent work. The release arrived July 16, with the full weights promised by July 27, and comes in two flavors: K3 Max for chat and agents, and K3 Swarm Max tuned for parallel processing. The significance is less about any single benchmark and more about the pace. A Chinese startup is putting a genuinely competitive frontier model into the open, which keeps pressure on closed labs and gives developers a heavyweight they can run and fine-tune themselves.

_Section: [Daily AI Updates](https://www.wortins.com/daily-ai) · Source: TechCrunch · Published Friday, July 17, 2026_

## Wortins' read

Moonshot AI, the Beijing lab behind the Kimi models, has released K3, an open-weight system with 2.8 trillion total parameters that uses a mixture-of-experts design, activating just 16 of its 896 experts for any given task. That sparse approach keeps the running cost manageable while pushing the model into frontier territory: Moonshot says K3 performs at roughly the level of GPT-5.6 and Anthropic's Opus 4.8, and it ships with a one-million-token context window aimed at long coding sessions and multi-step agent work. The release arrived July 16, with the full weights promised by July 27, and comes in two flavors: K3 Max for chat and agents, and K3 Swarm Max tuned for parallel processing. The significance is less about any single benchmark and more about the pace. A Chinese startup is putting a genuinely competitive frontier model into the open, which keeps pressure on closed labs and gives developers a heavyweight they can run and fine-tune themselves.

## Source

[Read the full story at TechCrunch](https://techcrunch.com/2026/07/16/moonshots-upcoming-kimi-3-is-expected-to-close-the-gap-with-anthropics-opus-4-8/)

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