Claude Opus 5 (Low) vs Kimi K3.1 Pro
Which is better for the money: Claude Opus 5 (Low) by Anthropic or Kimi K3.1 Pro by Kimi? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
Kimi K3.1 Pro scores 15.7 points higher (55.1 vs 39.4) but costs 2.0× as much to run the benchmark ($3117 vs $1561; flagship vs premium cost classes). Pick Kimi K3.1 Pro when the extra intelligence is worth the premium, otherwise Claude Opus 5 (Low).
| Metric | Claude Opus 5 (Low) | Kimi K3.1 Pro | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 39.4 | 55.1 | +39.8% Kimi K3.1 Pro is 39.8% more intelligent |
| Total AA cost (lower is better) | $1,560.91 | $3,117.31 | +99.7% Kimi K3.1 Pro is 99.7% more expensive |
| End-to-end time (lower is better) | 11.79s | 42.64s | +261.7% Kimi K3.1 Pro is 261.7% slower |
| Price per 1M tokens (in / out) | $5.00 / $25.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
Kimi K3.1 Pro vs Claude Opus 5 (Low): 39.8% more intelligence, 99.7% more cost to run the AA benchmark, and 261.7% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Opus 5 (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Kimi K3.1 Pro is on today's frontier: nothing is both smarter and cheaper.
Claude Opus 5 (Low)Kimi K3.1 ProToday's Pareto 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-low/kimi-k3-1-pro · Markdown: /api/v1/compare/claude-opus-5-low/kimi-k3-1-pro?format=md · llms.txt · agent skill