GPT-5 mini (High) vs GPT-6 Astra (High)
Which is better for the money: GPT-5 mini (High) by OpenAI or GPT-6 Astra (High) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
GPT-6 Astra (High) scores 34.1 points higher (50.9 vs 16.8) but costs 16× as much to run the benchmark ($2925 vs $189; flagship vs mid-range cost classes). They are not alternatives at one budget: pick GPT-6 Astra (High) when you need intelligence above 16.8, and GPT-5 mini (High) when 16.8 is enough.
| Metric | GPT-5 mini (High) | GPT-6 Astra (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 16.8 | 50.9 | +203.0% GPT-6 Astra (High) is 3.0× more intelligent |
| Total AA cost (lower is better) | $188.66 | $2,925.01 | +1450.4% GPT-6 Astra (High) is 16× more expensive |
| End-to-end time (lower is better) | 64.18s | 49.71s | −22.5% GPT-6 Astra (High) is 22.5% faster |
| Price per 1M tokens (in / out) | $0.25 / $2.00 | $10.0 / $50.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Astra (High) vs GPT-5 mini (High): 203.0% more intelligence, 1450.4% more cost to run the AA benchmark, and 22.5% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5 mini (High) is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
- 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-5 mini (High)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-5-mini/gpt-6-astra-high · Markdown: /api/v1/compare/gpt-5-mini/gpt-6-astra-high?format=md · llms.txt · agent skill