Gemini 2.5 Pro vs GPT-5.6 Terra (Medium)
Which is better for the money: Gemini 2.5 Pro by Google or GPT-5.6 Terra (Medium) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Clear winner
Verdict
Pick GPT-5.6 Terra (Medium)
GPT-5.6 Terra (Medium) vs Gemini 2.5 Pro: 87.0% more intelligence, 45.7% less cost to run the AA benchmark, and 78.4% faster end-to-end.
| Metric | Gemini 2.5 Pro | GPT-5.6 Terra (Medium) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 16.1 | 30.1 | +87.0% GPT-5.6 Terra (Medium) is 87.0% more intelligent |
| Total AA cost (lower is better) | $822.85 | $446.53 | −45.7% GPT-5.6 Terra (Medium) is 45.7% cheaper |
| End-to-end time (lower is better) | 27.13s | 5.85s | −78.4% GPT-5.6 Terra (Medium) is 78.4% faster |
| Price per 1M tokens (in / out) | $1.25 / $10.0 | $2.00 / $12.0 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
Today's Pareto frontier
Against the frontier
- Gemini 2.5 Pro is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
- GPT-5.6 Terra (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
Gemini 2.5 ProGPT-5.6 Terra (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-2-5-pro/gpt-5-6-terra-medium · Markdown: /api/v1/compare/gemini-2-5-pro/gpt-5-6-terra-medium?format=md · llms.txt · agent skill