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K2-Think

moonshotai·moonshotai/k2-think·GA·Open weights·kimi-thinking series
Kimi reasoning model for long-horizon research, planning, and tool use

Specs & pricing

Input / output per 1M tokens
Reference price·NanoGPT
$0.17 / $0.68
Blended $0.30 · Cache read $0.085
Lowest paid·NanoGPTGateway
$0.17 / $0.68
Blended $0.30
Context
128,000
Output limit
32,768
Knowledge cutoff
—
Released / updated
2025-07-26 / 2025-07-26
Capabilities
ReasoningTool useStructured output? TemperatureAttachments
Modalities
Text

Available at 1 providers1 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
NanoGPT
LLM360/K2-Think
Gateway$0.17$0.68$0.085—128,00032,768

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Your usage cost

1NanoGPT$57.80
The cheapest paid channel is the only channel.

Price historyone sample accumulated per data sync

Input listOutput listMin blended
$0.68$02026-08-052026-08-132026-08-05 · Input list $0.172026-08-06 · Input list $0.172026-08-07 · Input list $0.172026-08-08 · Input list $0.172026-08-09 · Input list $0.172026-08-10 · Input list $0.172026-08-11 · Input list $0.172026-08-12 · Input list $0.172026-08-13 · Input list $0.172026-08-05 · Output list $0.682026-08-06 · Output list $0.682026-08-07 · Output list $0.682026-08-08 · Output list $0.682026-08-09 · Output list $0.682026-08-10 · Output list $0.682026-08-11 · Output list $0.682026-08-12 · Output list $0.682026-08-13 · Output list $0.682026-08-05 · Min blended $0.302026-08-06 · Min blended $0.302026-08-07 · Min blended $0.302026-08-08 · Min blended $0.302026-08-09 · Min blended $0.302026-08-10 · Min blended $0.302026-08-11 · Min blended $0.302026-08-12 · Min blended $0.302026-08-13 · Min blended $0.30

Related models

Kimi K2 Thinking (Amazon Bedrock)same series$0.60 / $2.50Mistral Nemocheaper alternative$0.15 / $0.15Ministral 3Bcheaper alternative$0.04 / $0.04Command R7Bcheaper alternative$0.038 / $0.15Mistral Small 3.2cheaper alternative$0.10 / $0.30
Data partly from models.dev (MIT) · NanoGPT official docs ↗