GPT-6.1 Terra (Xhigh) vs Grok 4.6 (Low)
Which is better for the money: GPT-6.1 Terra (Xhigh) by OpenAI or Grok 4.6 (Low) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Clear winner
Verdict
Pick GPT-6.1 Terra (Xhigh)
Grok 4.6 (Low) vs GPT-6.1 Terra (Xhigh): 22.7% less intelligence, 68.2% more cost to run the AA benchmark, and 30.0% faster end-to-end.
| Metric | GPT-6.1 Terra (Xhigh) | Grok 4.6 (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 45.4 | 35.1 | −22.7% Grok 4.6 (Low) is 22.7% less intelligent |
| Total AA cost (lower is better) | $364.95 | $613.92 | +68.2% Grok 4.6 (Low) is 68.2% more expensive |
| End-to-end time (lower is better) | 18.82s | 13.17s | −30.0% Grok 4.6 (Low) is 30.0% faster |
| Price per 1M tokens (in / out) | $1.00 / $5.00 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- GPT-6.1 Terra (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
- Grok 4.6 (Low) is off the frontier: at the same or lower cost, GPT-6.1 Sol (High) scores 50.20 for $521.
GPT-6.1 Terra (Xhigh)Grok 4.6 (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-6-1-terra-xhigh/grok-4-6-low · Markdown: /api/v1/compare/gpt-6-1-terra-xhigh/grok-4-6-low?format=md · llms.txt · agent skill