GPT-5.6 Sol (High) vs GPT-5.6 Sol (Xhigh)
Which is better for the money: GPT-5.6 Sol (High) by OpenAI or GPT-5.6 Sol (Xhigh) 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
GPT-5.6 Sol (Xhigh) scores 1.7 points higher (44.0 vs 42.3) but costs 1.4× as much to run the benchmark ($2082 vs $1487; flagship vs premium cost classes). Pick GPT-5.6 Sol (Xhigh) when the extra intelligence is worth the premium, otherwise GPT-5.6 Sol (High).
| Metric | GPT-5.6 Sol (High) | GPT-5.6 Sol (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 42.3 | 44.0 | +4.0% GPT-5.6 Sol (Xhigh) is 4.0% more intelligent |
| Total AA cost (lower is better) | $1,487.34 | $2,082.28 | +40.0% GPT-5.6 Sol (Xhigh) is 40.0% more expensive |
| End-to-end time (lower is better) | 15.81s | 62.17s | +293.2% GPT-5.6 Sol (Xhigh) is 293.2% slower |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $4.00 / $20.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-5.6 Sol (Xhigh) vs GPT-5.6 Sol (High): 4.0% more intelligence, 40.0% more cost to run the AA benchmark, and 293.2% slower end-to-end.
Today's Pareto frontier
Against the frontier
- 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-5.6 Sol (Xhigh) 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)GPT-5.6 Sol (Xhigh)Today's Pareto frontierEvery other model
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