GPT-5.5 Instant (June 2026) vs GPT-6.1 Sol (Xhigh)
Which is better for the money: GPT-5.5 Instant (June 2026) by OpenAI or GPT-6.1 Sol (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Clear winner
Verdict
Pick GPT-6.1 Sol (Xhigh)
GPT-6.1 Sol (Xhigh) vs GPT-5.5 Instant (June 2026): 96.2% more intelligence, 44.1% less cost to run the AA benchmark, and 398.6% slower end-to-end.
| Metric | GPT-5.5 Instant (June 2026) | GPT-6.1 Sol (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 26.0 | 51.0 | +96.2% GPT-6.1 Sol (Xhigh) is 96.2% more intelligent |
| Total AA cost (lower is better) | $1,184.34 | $662.28 | −44.1% GPT-6.1 Sol (Xhigh) is 44.1% cheaper |
| End-to-end time (lower is better) | 17.31s | 86.31s | +398.6% GPT-6.1 Sol (Xhigh) is 398.6% slower |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- GPT-5.5 Instant (June 2026) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- GPT-6.1 Sol (Xhigh) is on today's frontier: nothing is both smarter and cheaper.
GPT-5.5 Instant (June 2026)GPT-6.1 Sol (Xhigh)Today's Pareto frontierEvery other model
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-5-instant-06-26/gpt-6-1-sol-xhigh · Markdown: /api/v1/compare/gpt-5-5-instant-06-26/gpt-6-1-sol-xhigh?format=md · llms.txt · agent skill