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Claude Opus 4.7 (Fast) vs Kimi K2 Thinking

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Claude Opus 4.7 (Fast) and Kimi K2 Thinking.

Anthropic

Claude Opus 4.7 (Fast)

Fast-mode variant of [Opus 4.7](/anthropic/claude-opus-4.7) - identical capabilities with higher output speed at premium 6x pricing. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode

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Moonshot AI

Kimi K2 Thinking

Kimi K2 Thinking is Moonshot AIโ€™s most advanced open reasoning model to date, extending the K2 series into agentic, long-horizon reasoning. Built on the trillion-parameter Mixture-of-Experts (MoE) architecture introduced in...

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Technical Specifications

SpecificationClaude Opus 4.7 (Fast)Kimi K2 Thinking
ProviderAnthropicMoonshot AI
Context Window1,000,000 tokens262,144 tokens
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitybetastable
API AvailableYesYes
Released Date2026-05-122025-11-06

API Pricing Comparison

Input Price per Million Tokens

Claude Opus 4.7 (Fast)

$30.00

Kimi K2 Thinking

$0.60

Output Price per Million Tokens

Claude Opus 4.7 (Fast)

$150.00

Kimi K2 Thinking

$2.50

Want to test both models live?

Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

MMLUGeneral knowledge & multi-task understanding
N/Avs8850.0%
Claude Opus 4.7 (Fast)
Kimi K2 Thinking
HumanEvalPython coding & logic synthesis
N/Avs9100.0%
Claude Opus 4.7 (Fast)
Kimi K2 Thinking
MATHComplex mathematical problem solving
N/Avs8540.0%
Claude Opus 4.7 (Fast)
Kimi K2 Thinking
GPQAGraduate-level expert reasoning
N/Avs5450.0%
Claude Opus 4.7 (Fast)
Kimi K2 Thinking
HellaSwagCommonsense reasoning and inference
N/Avs8880.0%
Claude Opus 4.7 (Fast)
Kimi K2 Thinking
MT-BenchMulti-turn conversation flow quality
N/Avs922.0%
Claude Opus 4.7 (Fast)
Kimi K2 Thinking

Claude Opus 4.7 (Fast) Quirks & Gotchas

No developer gotchas reported.

Kimi K2 Thinking Quirks & Gotchas

No developer gotchas reported.