Kimi K2 Base benchmarks, pricing and specs
Kimi K2 Base is a Moonshot Kimi model released on July 11, 2025 that takes text input and produces text. Its price is not published and accepts up to 128,000 tokens of context.
- Context window
- 128K
Data verified August 6, 2026 · Dataset 2026-10-12
Key facts
- Provider
- Moonshot Kimi
- Model family
- Kimi K2
- Release date
- July 11, 2025
- Status
- Current
- Access
- open weights
- API model id
- Not reported
- Context window
- 128,000 tokens
- Max output
- Not reported
- Input
- text
- Output
- text
- Task families
- text
- Declared capabilities
- reasoning
Kimi K2 Base pricing
Independent benchmark results
Scores come from independent evaluators that ran the model themselves, pinned to a dated snapshot. Rank is among current models in the same snapshot. Moonshot Kimi's own launch figures are listed under strengths with the publisher named, because they are not measured the same way.
No independent benchmark has published a result for Kimi K2 Base yet. It is still compared below on price, context and capabilities.
Strengths, cautions and best uses
Strengths
- Kimi K2 Base records open-weight access for text inputs and a published 128,000-token context window
Cautions
- Hosted token price and infrastructure cost are not represented; measure deployment and operating cost directly
Best for
- Base-model adaptation with open-weight infrastructure control
Alternatives to Kimi K2 Base
The closest current textmodels by price. The cheapest model that scores as well or better is listed first; failing that, the cheapest one within 3% of the benchmark's scale.
Kimi-Dev-72B
GPT-4.1
- 1.05M context window vs 128K
- From OpenAI
GPT-4.1 mini
- 1.05M context window vs 128K
- From OpenAI
Kimi-VL-A3B-Instruct
Other Kimi K2 models
Kimi K2 Base FAQ
What is the context window of Kimi K2 Base?
Kimi K2 Base accepts up to 128,000 tokens of context. That ranks #40 of 44 current text models by context length.
Is Kimi K2 Base open source or API only?
Kimi K2 Base is released as open weights that you can run yourself.
What are the best alternatives to Kimi K2 Base?
The closest current alternatives by price and measured performance are Kimi-Dev-72B, GPT-4.1 (1.05M context window vs 128K), GPT-4.1 mini (1.05M context window vs 128K) and Kimi-VL-A3B-Instruct.
Sources
- Kimi K2 · Moonshot AI · official · verified August 6, 2026
Cite this page
Van Data Team. "Kimi K2 Base Benchmarks, Pricing and Specs." AI Model Benchmark Dataset 2026-10-12. https://vandatateam.com/ai-model-benchmarks/kimi-k2-base
Reuse the data: JSON · CSV · or explore every model in the AI model benchmark comparison.
Production evaluation
Deciding whether Kimi K2 Base fits your workload?
Public benchmarks narrow the shortlist. We test the finalists on your own tasks, data and cost limits, then build the routing and review controls to run the winner in production.
- Evaluation cases and acceptance thresholds tied to real work
- Model routing, fallbacks and cost controls