Kimi K2 Thinking

by Moonshot AI · Kimi family · released Nov 6, 2025
Open weights Active

Token-efficient thinking K2.

Pricing

Launch price (from Nov 6, 2025)
$0.600 in / $2.50 out per 1M tokens
Current price (since Nov 6, 2025)
$0.600 in / $2.50 out per 1M tokens
Cache read: $0.150/M
TierEffectiveIn $/MOut $/MCache $/MPer imagePer secondSource
Standard Nov 6, 2025 – now $0.600 $2.50 $0.150 - - -

Specifications

Model typeText LLM
ArchitectureMoE
Parameters1,000 (32 active)
Context window262.1K tokens
Max outputNot disclosed tokens
Knowledge cutoffSep 1, 2025
LicenseModified MIT
Modalities Text input Text output
Tags Flagship Reasoning
End of lifeNot disclosed
Last verifiedAug 20, 2026

Benchmarks

BenchmarkScoreSrc
LMSYS Chatbot Arena Elo 1,476 -

Family versions