GPT-5.6 Terra (Xhigh) vs Grok 4.7 (Low)
Which is better for the money: GPT-5.6 Terra (Xhigh) by OpenAI or Grok 4.7 (Low) 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 (Low) scores 4.2 points higher (42.2 vs 38.0) but costs 1.2× as much to run the benchmark ($1407 vs $1187; both premium class). Pick Grok 4.7 (Low) when the extra intelligence is worth the premium, otherwise GPT-5.6 Terra (Xhigh).
| Metric | GPT-5.6 Terra (Xhigh) | Grok 4.7 (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.0 | 42.2 | +11.1% Grok 4.7 (Low) is 11.1% more intelligent |
| Total AA cost (lower is better) | $1,186.77 | $1,406.89 | +18.5% Grok 4.7 (Low) is 18.5% more expensive |
| End-to-end time (lower is better) | 36.37s | 12.13s | −66.6% Grok 4.7 (Low) is 66.6% faster |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.7 (Low) vs GPT-5.6 Terra (Xhigh): 11.1% more intelligence, 18.5% more cost to run the AA benchmark, and 66.6% faster 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 (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-5.6 Terra (Xhigh)Grok 4.7 (Low)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-low · Markdown: /api/v1/compare/gpt-5-6-terra-xhigh/grok-4-7-low?format=md · llms.txt · agent skill