Claude Opus 5.5 (Medium, Default Fallback) vs GPT-5.6 Sol (Xhigh)
Which is better for the money: Claude Opus 5.5 (Medium, Default Fallback) by Anthropic or GPT-5.6 Sol (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Clear winner
Verdict
Pick Claude Opus 5.5 (Medium, Default Fallback)
GPT-5.6 Sol (Xhigh) vs Claude Opus 5.5 (Medium, Default Fallback): 14.1% less intelligence, 28.0% more cost to run the AA benchmark, and 105.4% slower end-to-end.
| Metric | Claude Opus 5.5 (Medium, Default Fallback) | GPT-5.6 Sol (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 51.2 | 44.0 | −14.1% GPT-5.6 Sol (Xhigh) is 14.1% less intelligent |
| Total AA cost (lower is better) | $1,626.81 | $2,082.28 | +28.0% GPT-5.6 Sol (Xhigh) is 28.0% more expensive |
| End-to-end time (lower is better) | 23.21s | 47.67s | +105.4% GPT-5.6 Sol (Xhigh) is 105.4% slower |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $4.00 / $20.0 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- Claude Opus 5.5 (Medium, Default Fallback) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- GPT-5.6 Sol (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Claude Opus 5.5 (Medium, Default Fallback)GPT-5.6 Sol (Xhigh)Today's Pareto frontierEvery other model
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-5-5-medium/gpt-5-6-sol-xhigh · Markdown: /api/v1/compare/claude-opus-5-5-medium/gpt-5-6-sol-xhigh?format=md · llms.txt · agent skill