GPT-5.5 (High) vs Grok 4.7 (Xhigh)
Which is better for the money: GPT-5.5 (High) by OpenAI or Grok 4.7 (Xhigh) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
Grok 4.7 (Xhigh) scores 9.4 points higher (46.4 vs 37.0) but costs 1.5× as much to run the benchmark ($4967 vs $3411; both flagship class). Pick Grok 4.7 (Xhigh) when the extra intelligence is worth the premium, otherwise GPT-5.5 (High).
| Metric | GPT-5.5 (High) | Grok 4.7 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 37.0 | 46.4 | +25.4% Grok 4.7 (Xhigh) is 25.4% more intelligent |
| Total AA cost (lower is better) | $3,410.76 | $4,967.35 | +45.6% Grok 4.7 (Xhigh) is 45.6% more expensive |
| End-to-end time (lower is better) | 19.79s | 40.31s | +103.7% Grok 4.7 (Xhigh) is 103.7% slower |
| Price per 1M tokens (in / out) | $5.00 / $30.0 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.7 (Xhigh) vs GPT-5.5 (High): 25.4% more intelligence, 45.6% more cost to run the AA benchmark, and 103.7% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.5 (High) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
- Grok 4.7 (Xhigh) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
GPT-5.5 (High)Grok 4.7 (Xhigh)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-high/grok-4-7 · Markdown: /api/v1/compare/gpt-5-5-high/grok-4-7?format=md · llms.txt · agent skill