Claude Opus 5.5 (Low, Default Fallback) vs Kimi K3 (Low)
Which is better for the money: Claude Opus 5.5 (Low, Default Fallback) by Anthropic or Kimi K3 (Low) by Kimi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Clear winner
Verdict
Pick Claude Opus 5.5 (Low, Default Fallback)
Kimi K3 (Low) vs Claude Opus 5.5 (Low, Default Fallback): 28.8% less intelligence, 38.4% more cost to run the AA benchmark, and 379.7% slower end-to-end.
| Metric | Claude Opus 5.5 (Low, Default Fallback) | Kimi K3 (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 42.3 | 30.1 | −28.8% Kimi K3 (Low) is 28.8% less intelligent |
| Total AA cost (lower is better) | $860.33 | $1,190.42 | +38.4% Kimi K3 (Low) is 38.4% more expensive |
| End-to-end time (lower is better) | 11.16s | 53.54s | +379.7% Kimi K3 (Low) is 379.7% slower |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $3.00 / $15.0 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- Claude Opus 5.5 (Low, Default Fallback) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
- Kimi K3 (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Claude Opus 5.5 (Low, Default Fallback)Kimi K3 (Low)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-5-5-low/kimi-k3-low · Markdown: /api/v1/compare/claude-opus-5-5-low/kimi-k3-low?format=md · llms.txt · agent skill