Claude Sonnet 5.5 (Xhigh, Default Fallback) vs GPT-6 Sol (Low)
Which is better for the money: Claude Sonnet 5.5 (Xhigh, Default Fallback) by Anthropic or GPT-6 Sol (Low) 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 Sonnet 5.5 (Xhigh, Default Fallb… scores 17.7 points higher (51.9 vs 34.2) but costs 8.1× as much to run the benchmark ($2177 vs $269; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Claude Sonnet 5.5 (Xhigh, Default Fallb… when you need intelligence above 34.2, and GPT-6 Sol (Low) when 34.2 is enough.
| Metric | Claude Sonnet 5.5 (Xhigh, Default Fallback) | GPT-6 Sol (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 51.9 | 34.2 | −34.1% GPT-6 Sol (Low) is 34.1% less intelligent |
| Total AA cost (lower is better) | $2,176.82 | $268.73 | −87.7% GPT-6 Sol (Low) is 87.7% cheaper |
| End-to-end time (lower is better) | 33.27s | 5.80s | −82.6% GPT-6 Sol (Low) is 82.6% faster |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Sol (Low) vs Claude Sonnet 5.5 (Xhigh, Default Fallback): 34.1% less intelligence, 87.7% less cost to run the AA benchmark, and 82.6% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Sonnet 5.5 (Xhigh, Default Fallback) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
- GPT-6 Sol (Low) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
Claude Sonnet 5.5 (Xhigh, Default Fallback)GPT-6 Sol (Low)Today's Pareto frontierEvery other model
Matchup
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