GPT-5.5 (Xhigh) vs Grok 4.7 (High)
Which is better for the money: GPT-5.5 (Xhigh) by OpenAI or Grok 4.7 (High) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Clear winner
Verdict
Pick Grok 4.7 (High)
Grok 4.7 (High) vs GPT-5.5 (Xhigh): 20.6% more intelligence, 26.7% less cost to run the AA benchmark, and 36.7% faster end-to-end.
| Metric | GPT-5.5 (Xhigh) | Grok 4.7 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.4 | 46.3 | +20.6% Grok 4.7 (High) is 20.6% more intelligent |
| Total AA cost (lower is better) | $5,294.36 | $3,880.88 | −26.7% Grok 4.7 (High) is 26.7% cheaper |
| End-to-end time (lower is better) | 40.04s | 25.34s | −36.7% Grok 4.7 (High) is 36.7% faster |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- GPT-5.5 (Xhigh) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
- Grok 4.7 (High) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
GPT-5.5 (Xhigh)Grok 4.7 (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/grok-4-7-high · Markdown: /api/v1/compare/gpt-5-5/grok-4-7-high?format=md · llms.txt · agent skill