Gemini 3.5 Flash-Lite vs GPT-5.6 Luna (Medium)
Which is better for the money: Gemini 3.5 Flash-Lite by Google or GPT-5.6 Luna (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 Luna (Medium)
GPT-5.6 Luna (Medium) vs Gemini 3.5 Flash-Lite: 12.6% more intelligence, 87.9% less cost to run the AA benchmark, and 32.3% faster end-to-end.
| Metric | Gemini 3.5 Flash-Lite | GPT-5.6 Luna (Medium) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 22.2 | 25.0 | +12.6% GPT-5.6 Luna (Medium) is 12.6% more intelligent |
| Total AA cost (lower is better) | $365.63 | $44.32 | −87.9% GPT-5.6 Luna (Medium) is 87.9% cheaper |
| End-to-end time (lower is better) | 8.60s | 5.82s | −32.3% GPT-5.6 Luna (Medium) is 32.3% faster |
| Price per 1M tokens (in / out) | $0.30 / $2.50 | $0.20 / $1.20 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
Today's Pareto frontier
Against the frontier
- Gemini 3.5 Flash-Lite is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
- GPT-5.6 Luna (Medium) is off the frontier: at the same or lower cost, GPT-6 Luna (Medium) scores 29.90 for $31.2.
Gemini 3.5 Flash-LiteGPT-5.6 Luna (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-3-5-flash-lite/gpt-5-6-luna-medium · Markdown: /api/v1/compare/gemini-3-5-flash-lite/gpt-5-6-luna-medium?format=md · llms.txt · agent skill