Claude Opus 5.5 (Low, Default Fallback) vs Gemini 3.1 Pro Preview
Which is better for the money: Claude Opus 5.5 (Low, Default Fallback) by Anthropic or Gemini 3.1 Pro Preview by Google? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Clear winner
Verdict
Pick Claude Opus 5.5 (Low, Default Fallback)
Gemini 3.1 Pro Preview vs Claude Opus 5.5 (Low, Default Fallback): 29.8% less intelligence, 125.0% more cost to run the AA benchmark, and 85.5% slower end-to-end.
| Metric | Claude Opus 5.5 (Low, Default Fallback) | Gemini 3.1 Pro Preview | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 42.3 | 29.7 | −29.8% Gemini 3.1 Pro Preview is 29.8% less intelligent |
| Total AA cost (lower is better) | $860.33 | $1,935.39 | +125.0% Gemini 3.1 Pro Preview is 2.2× more expensive |
| End-to-end time (lower is better) | 13.42s | 24.90s | +85.5% Gemini 3.1 Pro Preview is 85.5% slower |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $2.00 / $12.0 | |
| Input modalities | Text, Image | Text, Image, Speech, Video |
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.
- Gemini 3.1 Pro Preview 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)Gemini 3.1 Pro PreviewToday'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-5-5-low/gemini-3-1-pro-preview · Markdown: /api/v1/compare/claude-opus-5-5-low/gemini-3-1-pro-preview?format=md · llms.txt · agent skill