GPT-6.1 Terra (Xhigh) vs Grok 4.3 (High)
Which is better for the money: GPT-6.1 Terra (Xhigh) by OpenAI or Grok 4.3 (High) by SpaceXAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Trade-off
Verdict
Depends on your budget
GPT-6.1 Terra (Xhigh) scores 20.5 points higher (45.4 vs 24.9) but costs 1.0× as much to run the benchmark ($365 vs $363; both mid-range class). Pick GPT-6.1 Terra (Xhigh) when the extra intelligence is worth the premium, otherwise Grok 4.3 (High).
| Metric | GPT-6.1 Terra (Xhigh) | Grok 4.3 (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 45.4 | 24.9 | −45.2% Grok 4.3 (High) is 45.2% less intelligent |
| Total AA cost (lower is better) | $364.95 | $363.24 | −0.5% Grok 4.3 (High) is 0.5% cheaper |
| End-to-end time (lower is better) | 18.82s | 34.26s | +82.0% Grok 4.3 (High) is 82.0% slower |
| Price per 1M tokens (in / out) | $1.00 / $5.00 | $1.25 / $2.50 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.3 (High) vs GPT-6.1 Terra (Xhigh): 45.2% less intelligence, 0.5% less cost to run the AA benchmark, and 82.0% slower end-to-end.
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 4.3 (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
GPT-6.1 Terra (Xhigh)Grok 4.3 (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-6-1-terra-xhigh/grok-4-3 · Markdown: /api/v1/compare/gpt-6-1-terra-xhigh/grok-4-3?format=md · llms.txt · agent skill