MoonshotAI: Kimi K2.5 (nitro)

moonshotai/kimi-k2.5:nitro

Released Jan 27, 2026262,144 context

$0.45/M input tokens$2.20/M output tokens

Kimi K2.5 is Moonshot AI's native multimodal model, delivering state-of-the-art visual coding capability and a self-directed agent swarm paradigm. Built on Kimi K2 with continued pretraining over approximately 15T mixed visual and text tokens, it delivers strong performance in general reasoning, visual coding, and agentic tool-calling.

MoonshotAI: Kimi K2.5 (nitro)

moonshotai/kimi-k2.5:nitro

Released Jan 27, 2026262,144 context

$0.45/M input tokens$2.20/M output tokens

Kimi K2.5 is Moonshot AI's native multimodal model, delivering state-of-the-art visual coding capability and a self-directed agent swarm paradigm. Built on Kimi K2 with continued pretraining over approximately 15T mixed visual and text tokens, it delivers strong performance in general reasoning, visual coding, and agentic tool-calling.

Recent activity on Kimi K2.5

Total usage per day on OpenRouter

Prompt

45.1B

Reasoning

960M

Completion

418M

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.