Gemini 4 Carbon (Medium) vs GPT-6 Astra (Medium)
Which is better for the money: Gemini 4 Carbon (Medium) by Google or GPT-6 Astra (Medium) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-11-03.
Trade-off
Verdict
Depends on your budget
Gemini 4 Carbon (Medium) scores 6.2 points higher (57.7 vs 51.5) but costs 2.2× as much to run the benchmark ($5903 vs $2638; both flagship class). Pick Gemini 4 Carbon (Medium) when the extra intelligence is worth the premium, otherwise GPT-6 Astra (Medium).
| Metric | Gemini 4 Carbon (Medium) | GPT-6 Astra (Medium) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 57.7 | 51.5 | −10.7% GPT-6 Astra (Medium) is 10.7% less intelligent |
| Total AA cost (lower is better) | $5,903.03 | $2,638.29 | −55.3% GPT-6 Astra (Medium) is 55.3% cheaper |
| End-to-end time (lower is better) | 11.62s | 14.99s | +29.0% GPT-6 Astra (Medium) is 29.0% slower |
| 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 (Medium): 10.7% less intelligence, 55.3% less cost to run the AA benchmark, and 29.0% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Gemini 4 Carbon (Medium) 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 (Medium)GPT-6 Astra (Medium)Today's Pareto frontierEvery other model
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