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Kimi K3OPEN
Kimi K3 (Moonshot AI): live API pricing, context window and the best open-source alternatives, tracked daily by OpenSourceAI.tech.
Prices update automatically — checked hourly against provider list prices.
Benchmarks & performance
Independent benchmark scores for Kimi K3, measured by Artificial Analysis. Higher is better.
About this model
Kimi K3 is an open-weight AI model by Moonshot AI. You can download and self-host it for free; the prices below are hosted-API list prices, tracked hourly, for when you prefer convenience over self-hosting.
Frequently asked questions
What is Kimi K3?
Kimi K3 is an AI language model from Moonshot AI. It is open-weight: you can download it and run it on your own hardware, for free. It scores 57.1 on the Artificial Analysis intelligence index.
Is Kimi K3 free?
The weights are free and open — you can self-host Kimi K3 and pay nothing per token. If you prefer a hosted API, list prices are $3 per million input tokens and $15 per million output tokens.
What is Kimi K3 good at?
Independent benchmarks from Artificial Analysis give it GPQA 93.5%, Humanity's Last Exam 44.3%, Long Context Reasoning 74.7%, SciCode 58.7%, τ-Bench Banking 33.4%, Terminal-Bench 85%. It is particularly used for code generation.
How fast is Kimi K3?
It generates about 32.2 tokens per second, with a median 3.14s delay before the first token. Measured independently by Artificial Analysis.
Can I self-host Kimi K3?
Yes. Kimi K3 has open weights, so you can download it and run it on your own GPU or server with tools like Ollama, vLLM or llama.cpp — with no per-token cost.
Open-source alternatives
Depending on your workload, an open-weight model that you can self-host may cut costs dramatically or remove per-token pricing entirely. Our comparison pages put this model side by side with the strongest open-source contenders.