Claude Sonnet 4.6 vs Kimi K2.6
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Claude Sonnet 4.6 by Anthropic wins on 6 of 10 benchmarks against Kimi K2.6 by Moonshot AI, which leads on 4. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
Coding: In coding, Claude Sonnet 4.6 scores 63 on AA Coding Index compared to Kimi K2.6's 61.8, while Claude Sonnet 4.6 scores 1274 on Design Arena ELO compared to Kimi K2.6's 1260, while Claude Sonnet 4.6 scores 1297 on Website Arena ELO compared to Kimi K2.6's 1282.
Reasoning: In reasoning, Kimi K2.6 scores 83.3% on GPQA Diamond compared to Claude Sonnet 4.6's 54.3%, while Claude Sonnet 4.6 scores 33.1 on AA Agentic Index compared to Kimi K2.6's 22.1, while Claude Sonnet 4.6 scores 75.3% on τ²-Bench Airline compared to Kimi K2.6's 73.7%.
Context: In context, Claude Sonnet 4.6 scores 1.0M on Context Length compared to Kimi K2.6's 262K.
Pricing Comparison
Claude Sonnet 4.6 costs $3.0/1M input tokens and $15.0/1M output tokens, while Kimi K2.6 costs $0.95/1M input and $4.0/1M output. Kimi K2.6 is the more affordable option for API usage.
Verdict
Kimi K2.6 leads across the board in affordability, making it the stronger overall choice in this comparison.
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Claude Sonnet 4.6 vs Kimi K2.6 — FAQ
Which is better, Claude Sonnet 4.6 or Kimi K2.6?
Claude Sonnet 4.6 wins on more benchmarks overall (6 vs 4). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude Sonnet 4.6 compare to Kimi K2.6 for coding?
SWE-bench Verified data is not available for both models. Check the detailed comparison charts above for other coding-related metrics.
Is Claude Sonnet 4.6 cheaper than Kimi K2.6?
Yes, Kimi K2.6 is cheaper. Claude Sonnet 4.6 costs $3.0/1M input and $15.0/1M output tokens. Kimi K2.6 costs $0.95/1M input and $4.0/1M output tokens.
Which is faster, Claude Sonnet 4.6 or Kimi K2.6?
Output speed data is not available for both models. Check the speed section of the comparison above for available performance data.
What benchmarks does the Claude Sonnet 4.6 vs Kimi K2.6 comparison cover?
This comparison covers 10 benchmarks including GPQA Diamond, Input Cost, Output Cost, Context Length, AA Coding Index, AA Agentic Index, Cached Input Cost, Design Arena ELO, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.