Gemini 4 Carbon (High) vs GPT-6 Astra (Low)
Which is better for the money: Gemini 4 Carbon (High) by Google or GPT-6 Astra (Low) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-28.
Trade-off
Verdict
Depends on your budget
Gemini 4 Carbon (High) scores 16.4 points higher (59.4 vs 43.0) but costs 5.0× as much to run the benchmark ($8240 vs $1651; flagship vs premium cost classes). They are not alternatives at one budget: pick Gemini 4 Carbon (High) when you need intelligence above 43.0, and GPT-6 Astra (Low) when 43.0 is enough.
| Metric | Gemini 4 Carbon (High) | GPT-6 Astra (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 59.4 | 43.0 | −27.6% GPT-6 Astra (Low) is 27.6% less intelligent |
| Total AA cost (lower is better) | $8,239.69 | $1,650.75 | −80.0% GPT-6 Astra (Low) is 80.0% cheaper |
| End-to-end time (lower is better) | 105.72s | 11.13s | −89.5% GPT-6 Astra (Low) is 89.5% 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 (Low) vs Gemini 4 Carbon (High): 27.6% less intelligence, 80.0% less cost to run the AA benchmark, and 89.5% 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 (Low) 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 (Low)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/gemini-4-carbon/gpt-6-astra-low · Markdown: /api/v1/compare/gemini-4-carbon/gpt-6-astra-low?format=md · llms.txt · agent skill