Claude 4.5 Sonnet (Reasoning) vs GPT-5.6 Sol (High)
Which is better for the money: Claude 4.5 Sonnet (Reasoning) by Anthropic or GPT-5.6 Sol (High) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Clear winner
Verdict
Pick GPT-5.6 Sol (High)
GPT-5.6 Sol (High) vs Claude 4.5 Sonnet (Reasoning): 104.3% more intelligence, 0.9% less cost to run the AA benchmark, and 35.6% faster end-to-end.
| Metric | Claude 4.5 Sonnet (Reasoning) | GPT-5.6 Sol (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 20.7 | 42.3 | +104.3% GPT-5.6 Sol (High) is 2.0× more intelligent |
| Total AA cost (lower is better) | $1,501.22 | $1,487.34 | −0.9% GPT-5.6 Sol (High) is 0.9% cheaper |
| End-to-end time (lower is better) | 21.53s | 13.86s | −35.6% GPT-5.6 Sol (High) is 35.6% faster |
| Price per 1M tokens (in / out) | $3.00 / $15.0 | $4.00 / $20.0 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- Claude 4.5 Sonnet (Reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- GPT-5.6 Sol (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Claude 4.5 Sonnet (Reasoning)GPT-5.6 Sol (High)Today's Pareto frontierEvery other model
Matchup
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