GPT-5.6 Terra (Xhigh) vs Grok 4.7 (Xhigh)
Which is better for the money: GPT-5.6 Terra (Xhigh) by OpenAI or Grok 4.7 (Xhigh) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
Grok 4.7 (Xhigh) scores 8.4 points higher (46.4 vs 38.0) but costs 3.7× as much to run the benchmark ($4438 vs $1187; flagship vs premium cost classes). They are not alternatives at one budget: pick Grok 4.7 (Xhigh) when you need intelligence above 38.0, and GPT-5.6 Terra (Xhigh) when 38.0 is enough.
| Metric | GPT-5.6 Terra (Xhigh) | Grok 4.7 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.0 | 46.4 | +22.1% Grok 4.7 (Xhigh) is 22.1% more intelligent |
| Total AA cost (lower is better) | $1,186.77 | $4,438.03 | +274.0% Grok 4.7 (Xhigh) is 3.7× more expensive |
| End-to-end time (lower is better) | 36.37s | 81.64s | +124.5% Grok 4.7 (Xhigh) is 124.5% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.7 (Xhigh) vs GPT-5.6 Terra (Xhigh): 22.1% more intelligence, 274.0% more cost to run the AA benchmark, and 124.5% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Terra (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- 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-5.6 Terra (Xhigh)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-5-6-terra-xhigh/grok-4-7 · Markdown: /api/v1/compare/gpt-5-6-terra-xhigh/grok-4-7?format=md · llms.txt · agent skill