Gemini 3.1 Flash-Lite vs GPT-6 Luna (Medium)
Which is better for the money: Gemini 3.1 Flash-Lite by Google or GPT-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-6 Luna (Medium)
GPT-6 Luna (Medium) vs Gemini 3.1 Flash-Lite: 91.7% more intelligence, 80.0% less cost to run the AA benchmark, and 34.1% slower end-to-end.
| Metric | Gemini 3.1 Flash-Lite | GPT-6 Luna (Medium) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 15.6 | 29.9 | +91.7% GPT-6 Luna (Medium) is 91.7% more intelligent |
| Total AA cost (lower is better) | $155.87 | $31.17 | −80.0% GPT-6 Luna (Medium) is 80.0% cheaper |
| End-to-end time (lower is better) | 6.15s | 8.25s | +34.1% GPT-6 Luna (Medium) is 34.1% slower |
| Price per 1M tokens (in / out) | $0.25 / $1.50 | $0.10 / $0.50 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
Today's Pareto frontier
Against the frontier
- Gemini 3.1 Flash-Lite is off the frontier: at the same or lower cost, GPT-6 Luna (Max) scores 38.10 for $122.
- GPT-6 Luna (Medium) is on today's frontier: nothing is both smarter and cheaper.
Gemini 3.1 Flash-LiteGPT-6 Luna (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-3-1-flash-lite-preview/gpt-6-luna-medium · Markdown: /api/v1/compare/gemini-3-1-flash-lite-preview/gpt-6-luna-medium?format=md · llms.txt · agent skill