Claude Sonnet 5.5 (Low, Default Fallback) vs GPT-5.6 Sol (Low)
Which is better for the money: Claude Sonnet 5.5 (Low, Default Fallback) by Anthropic or GPT-5.6 Sol (Low) 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 Sonnet 5.5 (Low, Default Fallback)
GPT-5.6 Sol (Low) vs Claude Sonnet 5.5 (Low, Default Fallback): 6.7% less intelligence, 32.2% more cost to run the AA benchmark, and 43.1% slower end-to-end.
| Metric | Claude Sonnet 5.5 (Low, Default Fallback) | GPT-5.6 Sol (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 35.9 | 33.5 | −6.7% GPT-5.6 Sol (Low) is 6.7% less intelligent |
| Total AA cost (lower is better) | $482.13 | $637.28 | +32.2% GPT-5.6 Sol (Low) is 32.2% more expensive |
| End-to-end time (lower is better) | 5.85s | 8.37s | +43.1% GPT-5.6 Sol (Low) is 43.1% slower |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $4.00 / $20.0 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- Claude Sonnet 5.5 (Low, Default Fallback) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
- GPT-5.6 Sol (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (High) scores 50.20 for $521.
Claude Sonnet 5.5 (Low, Default Fallback)GPT-5.6 Sol (Low)Today's Pareto frontierEvery other model
Matchup
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