KimiK3 MaxKimi K3 Is Here: Moonshot Ships a 1M-Token, Open-Weight Flagship
July 23, 2026
Moonshot AI has officially released Kimi K3, the company's most capable model to date and the successor to Kimi K2. The launch puts a genuinely long-context, open-weight model into the hands of developers worldwide — and it is already drawing comparisons to the leading Western labs.
What's new in Kimi K3
The headline upgrade is the 1-million-token context window. That is roughly 750,000 words in a single prompt — enough to ingest entire codebases, book-length documents, or full meeting transcripts without chunking. For practical workflows such as legal review, long-form research, and agentic coding, the long context removes a whole category of engineering friction.
Open weights for self-hosting
True to the Kimi line, K3 ships with open weights. Developers can download the model, run it on their own hardware, and fine-tune it for domain-specific tasks. Our open-weights guide walks through the licence, hardware requirements, and a step-by-step self-hosting setup.
Pricing and API access
Kimi K3 is available through the Moonshot API with a tiered, token-based price. Input tokens are priced aggressively for high-volume use, with premium tiers for cached and long-context requests. Full current numbers are on our pricing page, and you can estimate your own bill with the Token Cost Calculator.
Benchmarks and performance
Early third-party testing places K3 competitively against the top frontier models on reasoning, coding, and long-context retrieval. We have compiled the numbers we could verify on our benchmarks page, and we will keep updating it as more independent results land.
Try it now
- Read the full breakdown in our Kimi K3 ultimate guide.
- Compare specs side by side on the specs page.
- Chat with K3 directly in the Playground.
- Integrate it via the API reference.
KimiK3Max is an independent, non-official resource hub. Kimi is a trademark of Moonshot AI. This article summarizes publicly available launch information; verify exact specifications on the official site.