← All Models

Claude Opus 4.6 vs Kimi K3

Claude Opus 4.6 leads in 3 of 8 categories

Arena ELO

Claude Opus 4.6

Cheaper

Kimi K3

Faster

Claude Opus 4.6

Detailed Comparison

CategoryClaude Opus 4.6Kimi K3
ProviderAnthropic Moonshot AI
Context Window1M WIN128K
Input Price ($/1M)$5 $0.6 WIN
Output Price ($/1M)$25 $2.5 WIN
Arena ELO1561 WINN/A
Coding80.8% SWE-bench N/A
Reasoning65.4% Terminal-Bench N/A
Speed (tokens/sec)~40 t/s WINN/A
Open SourceNo Yes

Frequently Asked Questions

Which is cheaper, Claude Opus 4.6 or Kimi K3?

Kimi K3 is approximately 90% cheaper than Claude Opus 4.6 per million tokens.

Which is better for coding, Claude Opus 4.6 or Kimi K3?

Claude Opus 4.6 scores 80.8% SWE-bench on coding benchmarks, while Kimi K3 scores N/A.

Which has a larger context window?

Claude Opus 4.6 supports 1M context, while Kimi K3 supports 128K.

Is Claude Opus 4.6 or Kimi K3 open source?

Claude Opus 4.6 is proprietary. Kimi K3 is open source.

Related Articles

Kimi K3 Benchmark Evaluation Guide for Coding Agents

Kimi K3 Proves Intelligence Still Costs Too Much

Kimi K3 could pressure the middle tier of AI models

Claude Code turns chat into terminal work

Kimi K3 turns model hype into harness work

Kimi API quickstart adds K2.7 Code and Highspeed

More Comparisons

Claude Opus 4.6 vs Claude Opus 4.5Claude Opus 4.6 vs Llama 4 ScoutClaude Opus 4.6 vs Claude Haiku 4.5Claude Opus 4.6 vs Qwen 3.6Claude Opus 4.6 vs Kimi K2.7 CodeClaude Opus 4.6 vs DeepSeek V4 FlashClaude Opus 4.6 vs Claude Sonnet 4.6Claude Opus 4.6 vs Claude Fable 5Kimi K3 vs Claude Opus 4.5Kimi K3 vs Llama 4 ScoutKimi K3 vs Claude Haiku 4.5Kimi K3 vs Qwen 3.6Kimi K3 vs Kimi K2.7 CodeKimi K3 vs DeepSeek V4 FlashKimi K3 vs Claude Sonnet 4.6Kimi K3 vs Claude Fable 5