MoonshotAIReleased on Sep 5, 2025

Kimi K2-Instruct-0905: Benchmarks, Pricing & Size

Kimi K2-Instruct-0905 is a language model from MoonshotAI, released in September 2025.

Kimi K2-Instruct-0905 is the latest, most capable version of Kimi K2, achieving state-of-the-art performance in frontier knowledge, math, and coding among non-thinking models. This Mixture-of-Experts model features 32 billion activated

Kimi K2-Instruct-0905 model size

Kimi K2-Instruct-0905 has 1 trillion parameters and was trained on 15.5 trillion tokens. See how it compares to other models in the same parameter range.

ParametersTraining tokens
1TMoE
15.5Ttokens
16× tokens-to-params ratio
Frontier (200B+)
1T
1B7B70B405B

Kimi K2-Instruct-0905 API

API access coming soon

Kimi K2-Instruct-0905 will be available through our gateway shortly.

Kimi K2-Instruct-0905 examples

Recent arena outputs from Kimi K2-Instruct-0905, picked from the highest-ranked matchups.

Kimi K2-Instruct-0905 license

Kimi K2-Instruct-0905 is released under the MIT license, which permits commercial use, has 1.0T parameters.

License
MIT
Commercial use allowed
Parameters
1.0T

MIT License - allows commercial use

FAQ

Common questions about Kimi K2-Instruct-0905.

When was Kimi K2-Instruct-0905 released?

Kimi K2-Instruct-0905 was released on September 5, 2025 by MoonshotAI. This is the official Kimi K2-Instruct-0905 release date tracked on LLM Stats.

Is Kimi K2-Instruct-0905 available via API?

Yes, Kimi K2-Instruct-0905 is available via API. See the official documentation for authentication and endpoint details.

How big is Kimi K2-Instruct-0905?

Kimi K2-Instruct-0905 has 1000 billion parameters. It was trained on 15.5 trillion tokens. It ships as an open-weight model, so you can download and run it on your own hardware.

Who created Kimi K2-Instruct-0905?

Kimi K2-Instruct-0905 was created by MoonshotAI.

What is the license for Kimi K2-Instruct-0905?

Kimi K2-Instruct-0905 is released under the MIT license. This is an open-source / open-weight license that permits self-hosting.

Where is the Kimi K2-Instruct-0905 paper or technical report?

Kimi K2-Instruct-0905 has a paper or technical report available at https://github.com/MoonshotAI/Kimi-K2/blob/main/tech_report.pdf. Use that source for architecture, training, release and evaluation details.