GPT-5.5 (Medium) vs GPT-5.6 Sol (High)
Which is better for the money: GPT-5.5 (Medium) by OpenAI 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 GPT-5.5 (Medium): 25.1% more intelligence, 29.0% less cost to run the AA benchmark, and 9.7% slower end-to-end.
| Metric | GPT-5.5 (Medium) | GPT-5.6 Sol (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 33.8 | 42.3 | +25.1% GPT-5.6 Sol (High) is 25.1% more intelligent |
| Total AA cost (lower is better) | $2,095.12 | $1,487.34 | −29.0% GPT-5.6 Sol (High) is 29.0% cheaper |
| End-to-end time (lower is better) | 12.63s | 13.86s | +9.7% GPT-5.6 Sol (High) is 9.7% slower |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $4.00 / $20.0 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- GPT-5.5 (Medium) 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.
GPT-5.5 (Medium)GPT-5.6 Sol (High)Today's Pareto frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-5-medium/gpt-5-6-sol-high · Markdown: /api/v1/compare/gpt-5-5-medium/gpt-5-6-sol-high?format=md · llms.txt · agent skill