Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Gemini 3.1 Flash-Lite | GPT-3.5 Turbo |
|---|---|---|
| Input ($/M tokens) | $0.25 | $0.5 |
| Output ($/M tokens) | $1.5 | $1.5 |
Data from Artificial Analysis API — 12 benchmarks
Gemini 3.1 Flash-Lite is cheaper overall. Its blended price (3:1 input/output ratio) is $0.56/M tokens vs $0.75/M for GPT-3.5 Turbo.
Gemini 3.1 Flash-Lite wins 7 out of 12 benchmarks compared to 2 for GPT-3.5 Turbo. See the detailed benchmark chart above for per-category results.
Gemini 3.1 Flash-Lite generates tokens faster at 303 tok/s vs 129 tok/s. However, GPT-3.5 Turbo has lower time-to-first-token (0.80s vs 5.07s).
Choose based on your priorities: Gemini 3.1 Flash-Lite for lower cost, Gemini 3.1 Flash-Lite for stronger benchmark performance, and Gemini 3.1 Flash-Lite for faster generation. For latency-sensitive apps, check the TTFT comparison above.