GPT-6.1 Terra (Low) vs Grok 4.6 (Medium)
Which is better for the money: GPT-6.1 Terra (Low) by OpenAI or Grok 4.6 (Medium) 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
Grok 4.6 (Medium) scores 6.6 points higher (42.8 vs 36.2) but costs 14× as much to run the benchmark ($1557 vs $115; premium vs mid-range cost classes). They are not alternatives at one budget: pick Grok 4.6 (Medium) when you need intelligence above 36.2, and GPT-6.1 Terra (Low) when 36.2 is enough.
| Metric | GPT-6.1 Terra (Low) | Grok 4.6 (Medium) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 36.2 | 42.8 | +18.2% Grok 4.6 (Medium) is 18.2% more intelligent |
| Total AA cost (lower is better) | $114.52 | $1,557.04 | +1259.6% Grok 4.6 (Medium) is 14× more expensive |
| End-to-end time (lower is better) | 6.80s | 33.53s | +393.1% Grok 4.6 (Medium) is 393.1% slower |
| Price per 1M tokens (in / out) | $1.00 / $5.00 | $2.00 / $6.00 | |
| Input modalities | Text, Image | Text, Image |
Grok 4.6 (Medium) vs GPT-6.1 Terra (Low): 18.2% more intelligence, 1259.6% more cost to run the AA benchmark, and 393.1% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6.1 Terra (Low) is off the frontier: at the same or lower cost, MiMo-V2.6-Flash scores 37.90 for $110.
- Grok 4.6 (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-6.1 Terra (Low)Grok 4.6 (Medium)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-low/grok-4-6-medium · Markdown: /api/v1/compare/gpt-6-1-terra-low/grok-4-6-medium?format=md · llms.txt · agent skill