Claude Opus 5.5 (High, Default Fallback) vs GPT-6 Sol (Xhigh)
Which is better for the money: Claude Opus 5.5 (High, Default Fallback) by Anthropic or GPT-6 Sol (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
Claude Opus 5.5 (High, Default Fallback) scores 9.4 points higher (53.6 vs 44.2) but costs 2.5× as much to run the benchmark ($2172 vs $855; flagship vs premium cost classes). Pick Claude Opus 5.5 (High, Default Fallback) when the extra intelligence is worth the premium, otherwise GPT-6 Sol (Xhigh).
| Metric | Claude Opus 5.5 (High, Default Fallback) | GPT-6 Sol (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 53.6 | 44.2 | −17.5% GPT-6 Sol (Xhigh) is 17.5% less intelligent |
| Total AA cost (lower is better) | $2,172.43 | $854.60 | −60.7% GPT-6 Sol (Xhigh) is 60.7% cheaper |
| End-to-end time (lower is better) | 37.63s | 46.01s | +22.3% GPT-6 Sol (Xhigh) is 22.3% slower |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Sol (Xhigh) vs Claude Opus 5.5 (High, Default Fallback): 17.5% less intelligence, 60.7% less cost to run the AA benchmark, and 22.3% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Opus 5.5 (High, Default Fallback) is on today's frontier: nothing is both smarter and cheaper.
- GPT-6 Sol (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
Claude Opus 5.5 (High, Default Fallback)GPT-6 Sol (Xhigh)Today's Pareto frontierEvery other model
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