Gemini 4 Carbon (High) vs GPT-6 Astra (Medium)
Which is better for the money: Gemini 4 Carbon (High) by Google or GPT-6 Astra (Medium) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-30.
Trade-off
Verdict
Depends on your budget
Gemini 4 Carbon (High) scores 7.9 points higher (59.4 vs 51.5) but costs 3.1× as much to run the benchmark ($8240 vs $2638; both flagship class). They are not alternatives at one budget: pick Gemini 4 Carbon (High) when you need intelligence above 51.5, and GPT-6 Astra (Medium) when 51.5 is enough.
| Metric | Gemini 4 Carbon (High) | GPT-6 Astra (Medium) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 59.4 | 51.5 | −13.3% GPT-6 Astra (Medium) is 13.3% less intelligent |
| Total AA cost (lower is better) | $8,239.69 | $2,638.29 | −68.0% GPT-6 Astra (Medium) is 68.0% cheaper |
| End-to-end time (lower is better) | 110.18s | 11.87s | −89.2% GPT-6 Astra (Medium) is 89.2% faster |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $10.0 / $50.0 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
GPT-6 Astra (Medium) vs Gemini 4 Carbon (High): 13.3% less intelligence, 68.0% less cost to run the AA benchmark, and 89.2% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Gemini 4 Carbon (High) is on today's frontier: nothing is both smarter and cheaper.
- GPT-6 Astra (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 54.50 for $1124.
Gemini 4 Carbon (High)GPT-6 Astra (Medium)Today's Pareto frontierEvery other model
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gemini-4-carbon/gpt-6-astra-medium · Markdown: /api/v1/compare/gemini-4-carbon/gpt-6-astra-medium?format=md · llms.txt · agent skill