Claude Opus 5.5 (Medium, Default Fallback) vs GPT-6 Sol (Low)
Which is better for the money: Claude Opus 5.5 (Medium, 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 2026-10-25.
Trade-off
Verdict
Depends on your budget
Claude Opus 5.5 (Medium, Default Fallba… scores 17.0 points higher (51.2 vs 34.2) but costs 6.1× as much to run the benchmark ($1627 vs $269; premium vs mid-range cost classes). They are not alternatives at one budget: pick Claude Opus 5.5 (Medium, Default Fallba… when you need intelligence above 34.2, and GPT-6 Sol (Low) when 34.2 is enough.
| Metric | Claude Opus 5.5 (Medium, Default Fallback) | GPT-6 Sol (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 51.2 | 34.2 | −33.2% GPT-6 Sol (Low) is 33.2% less intelligent |
| Total AA cost (lower is better) | $1,626.81 | $268.73 | −83.5% GPT-6 Sol (Low) is 83.5% cheaper |
| End-to-end time (lower is better) | 21.80s | 6.10s | −72.0% GPT-6 Sol (Low) is 72.0% faster |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Sol (Low) vs Claude Opus 5.5 (Medium, Default Fallback): 33.2% less intelligence, 83.5% less cost to run the AA benchmark, and 72.0% faster end-to-end.
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-6 Sol (Low) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
Claude Opus 5.5 (Medium, Default Fallback)GPT-6 Sol (Low)Today's Pareto frontierEvery other model
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