What is Kimi 2?
Kimi 2 is an AI assistant model from Moonshot AI, a Chinese AI lab founded in 2023. Kimi 2 (also referred to as Kimi K2 in developer contexts) builds on Moonshot's previous Kimi models with significantly improved reasoning capabilities, notably its K2 Thinking mode for step-by-step mathematical and logical analysis. It's available through Moonshot's Kimi platform and API, positioning itself as a strong alternative to Western frontier models at competitive pricing.
Kimi 2 Capabilities
Kimi 2 specialises in mathematical reasoning, logical problem solving, and coding tasks. Its K2 Thinking mode enables chain-of-thought reasoning similar to DeepSeek-R1 and OpenAI's o-series, making it competitive on MATH-500 and competitive programming benchmarks. The model handles both Chinese and English fluently, with particular strength in Chinese-language tasks — making it popular with Chinese developers and businesses.
The model supports multi-step agentic workflows, accurate web search grounding, and strong performance on coding benchmarks. As of early 2026, Kimi K2.5 — an updated version — has improved coding and vision capabilities with a self-directed agent swarm paradigm supporting up to 100 sub-agents running in parallel.
Kimi 2 Pricing and Access
Kimi 2 is accessible via the Kimi API at platform.moonshot.cn. Pricing is competitive with DeepSeek's models, making it one of the more affordable options for Chinese-language applications. The Kimi consumer app at kimi.moonshot.cn offers free access with usage limits. For developers, API access requires registration with Moonshot AI.
Kimi 2 vs DeepSeek vs Claude
Against DeepSeek R1, Kimi 2 offers comparable reasoning capability with stronger multilingual support for Chinese. Against Claude Sonnet 4.5, Kimi 2 is more affordable but has a smaller international developer ecosystem. The model's primary advantage is its specialisation in Asian language markets and its competitive pricing for reasoning-heavy applications.
Frequently Asked Questions
Is Kimi 2 available in English?
Yes. Kimi 2 handles English fluently alongside Chinese and other languages. However, its strongest performance tends to be on Chinese-language tasks due to its training data composition.
What is K2 Thinking mode?
K2 Thinking is Kimi 2's extended reasoning mode that works through mathematical and logical problems step by step before producing a final answer — similar to DeepSeek-R1's chain-of-thought reasoning.