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Moonshot AI: MoonshotAI: Kimi K3

Kimi K3 is a 2.8T parameter open-weight multimodal reasoning model from Moonshot AI. It is suited for complex coding, knowledge work, and long-horizon agentic workflows, and is particularly strong at...

Specifications

ProviderMoonshot AI
Model IDmoonshotai/kimi-k3
Context window1.0M tokens (1,048,576)
Modalitiestext + image + video → text
TokenizerOther
Router sourcesOpenRouter, TrustedRouter, Vercel AI Gateway, Cloudflare
Released2026-07-16
Tracked since2026-11-14
Popularity#17 by usage · peak 8.9% spend share in an OpenRouter category
ReasoningOn by default

Pricing (per million tokens)

VariantSourceAPI IDInputOutputContext
standardOpenRoutermoonshotai/kimi-k3$0.192$16.001.0M
batchOpenRoutermoonshotai/kimi-k3:batch$2.28$11.401.0M
standardTrustedRoutermoonshotai/kimi-k3$0.38$10.021.0M
standardVercel AI Gatewaymoonshotai/kimi-k3$3.00$15.001M
standardCloudflaremoonshotai/kimi-k3$3.00$15.00—

Recorded price history

DateInput / 1MOutput / 1MContext
2026-11-14$3.00$15.00—
2026-11-14$3.00$15.001M
2026-11-14$0.38$10.021.0M
2026-11-14$0.192$16.001.0M

Capabilities

Vision (image input)Video inputAgentic tool useStructured outputsReasoning mode1M+ context windowControllable reasoningNo content storage (attested)Zero data retention

Trust flags come from TrustedRouter's per-provider attestations.

Supported parameters

frequency_penalty, include_reasoning, logit_bias, logprobs, max_tokens, min_p, presence_penalty, reasoning, reasoning_effort, repetition_penalty, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_k, top_logprobs, top_p