Gemini 3.5 Flash-Lite vs GPT-5.5 Instant (June 2026)
Which is better for the money: Gemini 3.5 Flash-Lite by Google or GPT-5.5 Instant (June 2026) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
GPT-5.5 Instant (June 2026) scores 3.8 points higher (26.0 vs 22.2) but costs 2.9× as much to run the benchmark ($987 vs $337; premium vs mid-range cost classes). Pick GPT-5.5 Instant (June 2026) when the extra intelligence is worth the premium, otherwise Gemini 3.5 Flash-Lite.
| Metric | Gemini 3.5 Flash-Lite | GPT-5.5 Instant (June 2026) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 22.2 | 26.0 | +17.1% GPT-5.5 Instant (June… is 17.1% more intelligent |
| Total AA cost (lower is better) | $337.15 | $986.85 | +192.7% GPT-5.5 Instant (June… is 2.9× more expensive |
| End-to-end time (lower is better) | 9.50s | 16.68s | +75.6% GPT-5.5 Instant (June… is 75.6% slower |
| Price per 1M tokens (in / out) | $0.30 / $2.50 | $5.00 / $30.0 | |
| Input modalities | Text, Image, Speech, Video | Text, Image |
GPT-5.5 Instant (June 2026) vs Gemini 3.5 Flash-Lite: 17.1% more intelligence, 192.7% more cost to run the AA benchmark, and 75.6% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Gemini 3.5 Flash-Lite is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
- GPT-5.5 Instant (June 2026) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
Gemini 3.5 Flash-LiteGPT-5.5 Instant (June 2026)Today's Pareto frontierEvery other model
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