Benchmark scores
Higher is better for all benchmark scores (SWE-bench, GPQA, HLE, Terminal-Bench, etc.). Green marks the model with the higher score.
LLM Comparison
Claude Opus 5.5 vs Kimi K3.1 Pro: benchmark scores, pricing & comparison.
Side-by-side Claude Opus 5.5 vs Kimi K3.1 Pro comparison across SWE-bench, GPQA, HLE, Terminal-Bench, coding agent scores, token pricing, context window, and AskClash RWT. Green marks the winner on each benchmark.
Verdict: Claude Opus 5.5 ranks higher (#1 vs #4); Kimi K3.1 Pro wins 4 of 6 shared benchmarks; Kimi K3.1 Pro costs less ($2.00/$10.0 vs $4.00/$20.0 per 1M tokens).
Rank #1 vs #4AskClash overall scores 78.6 vs 75.5.
Pricing $4.00/$20.0 vs $2.00/$10.0Input and output token prices per 1M tokens when published.
Proprietary vs Open WeightAnthropic vs Moonshot AI.
Claude Opus 5.5 vs Kimi K3.1 Pro benchmark comparison
Green cells highlight the winning model for each metric. Scores are cached from the AskClash LLM leaderboard snapshot.
| Metric | Claude Opus 5.5 | Kimi K3.1 Pro |
|---|---|---|
| Overall Score | 78.6 | 75.5 |
| Leaderboard Rank | #1 | #4 |
| ACB | 76.5 | — |
| HLE | 67.7 | 70.0 |
| GPQA | — | 94.2 |
| SWE-Pro | 89.9 | — |
| Terminal-Bench | 59.6 | 65.7 |
| DeepSWE | 74.2 | 75.5 |
| GDPval-AA | 1846.2 | 1846.0 |
| Finance Agent | 58.6 | 58.6 |
| CharXiv | — | 89.0 |
| MMMU-Pro | 87.7 | 84.1 |
| Input Price (per 1M tokens) | $4.00 | $2.00 |
| Output Price (per 1M tokens) | $20.0 | $10.0 |
| Context Window | 1M | 1M |
| Benchmarks Published | 11 | 9 |
Claude Opus 5.5 vs Kimi K3.1 Pro head-to-head charts
Claude Opus 5.5 leads 3 and Kimi K3.1 Pro leads 4 of 7 shared benchmarks. Kimi K3.1 Pro is cheaper on a defined 1M-input / 200K-output workload. Charts show only benchmarks both models publish.
Claude Opus 5.5Kimi K3.1 Pro
Overall
HLE
Terminal-Bench
DeepSWE
GDPval-AA
Finance Agent
MMMU-Pro
Claude Opus 5.5
Input$4.00
Output$20.0
Workload$8.00
Context1M
Kimi K3.1 Pro
Input$2.00
Output$10.0
Workload$4.00
Context1M
Workload = published cost of 1M input + 200K output tokens. Open the live leaderboard for interactive compare charts.
More Claude Opus 5.5 and Kimi K3.1 Pro comparisons
Explore how Claude Opus 5.5 and Kimi K3.1 Pro stack up against other top-ranked LLMs.
Claude Opus 5.5 vs Claude Fable 5.1Claude Fable 5.1 vs Kimi K3.1 ProClaude Opus 5.5 vs Claude Sonnet 5.5Claude Sonnet 5.5 vs Kimi K3.1 ProClaude Opus 5.5 vs Claude Opus 5Kimi K3.1 Pro vs Claude Opus 5Claude Opus 5.5 vs Claude Fable 5Kimi K3.1 Pro vs Claude Fable 5Claude Opus 5.5 vs Gemini 4 ArgonKimi K3.1 Pro vs Gemini 4 Argon
How to read this comparison
Token pricing
Lower is better for input and output prices. Green marks the cheaper model per 1M tokens.
Coverage matters
Models with fewer disclosed benchmark cells may have inflated percentile scores. Check the benchmark cell count for context.
This comparison page is generated from the AskClash LLM leaderboard cache. Open the live leaderboard for real-time scores and interactive filtering.