Claude Opus 4.6 vs Kimi K2.5
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Claude Opus 4.6 by Anthropic wins on 6 of 10 benchmarks against Kimi K2.5 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 Opus 4.6 scores 1289 on Design Arena ELO compared to Kimi K2.5's 1228, while Claude Opus 4.6 scores 1298 on Website Arena ELO compared to Kimi K2.5's 1261.
Reasoning: In reasoning, Claude Opus 4.6 scores 85.3% on GPQA Diamond compared to Kimi K2.5's 84.9%, while Claude Opus 4.6 scores 75.7% on τ²-Bench Airline compared to Kimi K2.5's 71.2%.
Context: In context, Claude Opus 4.6 scores 1.0M on Context Length compared to Kimi K2.5's 262K.
Pricing Comparison
Claude Opus 4.6 costs $5.0/1M input tokens and $25.0/1M output tokens, while Kimi K2.5 costs $0.45/1M input and $2.3/1M output. Kimi K2.5 is the more affordable option for API usage.
Speed Comparison
Claude Opus 4.6 generates output at 68 tok/s compared to Kimi K2.5's 45 tok/s, and the time to first token is 1680 ms for Claude Opus 4.6 versus 1210 ms for Kimi K2.5. Claude Opus 4.6 delivers faster throughput.
Verdict
For developers prioritizing speed, Claude Opus 4.6 has the edge. For those who value affordability, Kimi K2.5 is the stronger choice.
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Claude Opus 4.6 vs Kimi K2.5 — FAQ
Which is better, Claude Opus 4.6 or Kimi K2.5?
Claude Opus 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 Opus 4.6 compare to Kimi K2.5 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 Opus 4.6 cheaper than Kimi K2.5?
Yes, Kimi K2.5 is cheaper. Claude Opus 4.6 costs $5.0/1M input and $25.0/1M output tokens. Kimi K2.5 costs $0.45/1M input and $2.3/1M output tokens.
Which is faster, Claude Opus 4.6 or Kimi K2.5?
Claude Opus 4.6 is faster, generating output at 68 tok/s compared to 45 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Claude Opus 4.6 vs Kimi K2.5 comparison cover?
This comparison covers 10 benchmarks including GPQA Diamond, Output Speed, Time to First Token, Input Cost, Output Cost, Context Length, Cached Input Cost, Design Arena ELO, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.