GPT-6.1 Terra (Medium) vs GPT-6 Astra (High)
Which is better for the money: GPT-6.1 Terra (Medium) by OpenAI or GPT-6 Astra (High) by OpenAI? 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 Astra (High) scores 9.6 points higher (50.9 vs 41.3) but costs 17× as much to run the benchmark ($2925 vs $175; flagship vs mid-range cost classes). They are not alternatives at one budget: pick GPT-6 Astra (High) when you need intelligence above 41.3, and GPT-6.1 Terra (Medium) when 41.3 is enough.
| Metric | GPT-6.1 Terra (Medium) | GPT-6 Astra (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 41.3 | 50.9 | +23.2% GPT-6 Astra (High) is 23.2% more intelligent |
| Total AA cost (lower is better) | $175.20 | $2,925.01 | +1569.5% GPT-6 Astra (High) is 17× more expensive |
| End-to-end time (lower is better) | 6.95s | 59.78s | +760.1% GPT-6 Astra (High) is 760.1% slower |
| Price per 1M tokens (in / out) | $1.00 / $5.00 | $10.0 / $50.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Astra (High) vs GPT-6.1 Terra (Medium): 23.2% more intelligence, 1569.5% more cost to run the AA benchmark, and 760.1% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6.1 Terra (Medium) is on today's frontier: nothing is both smarter and cheaper.
- GPT-6 Astra (High) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
GPT-6.1 Terra (Medium)GPT-6 Astra (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-medium/gpt-6-astra-high · Markdown: /api/v1/compare/gpt-6-1-terra-medium/gpt-6-astra-high?format=md · llms.txt · agent skill