Gemini 3.5 Flash (High) vs GPT-6 Astra (Medium)
Which is better for the money: Gemini 3.5 Flash (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 2026-10-25.
Clear winner
Verdict
Pick GPT-6 Astra (Medium)
GPT-6 Astra (Medium) vs Gemini 3.5 Flash (High): 52.1% more intelligence, 42.3% less cost to run the AA benchmark, and 16.0% faster end-to-end.
| Metric | Gemini 3.5 Flash (High) | GPT-6 Astra (Medium) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 32.6 | 49.6 | +52.1% GPT-6 Astra (Medium) is 52.1% more intelligent |
| Total AA cost (lower is better) | $4,222.12 | $2,434.12 | −42.3% GPT-6 Astra (Medium) is 42.3% cheaper |
| End-to-end time (lower is better) | 16.54s | 13.89s | −16.0% GPT-6 Astra (Medium) is 16.0% faster |
| Price per 1M tokens (in / out) | $1.50 / $9.00 | $10.0 / $50.0 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
Today's Pareto frontier
Against the frontier
- Gemini 3.5 Flash (High) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
- GPT-6 Astra (Medium) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
Gemini 3.5 Flash (High)GPT-6 Astra (Medium)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-3-5-flash/gpt-6-astra-medium · Markdown: /api/v1/compare/gemini-3-5-flash/gpt-6-astra-medium?format=md · llms.txt · agent skill