Gemini 3.1 Flash Lite Preview vs Gemini 2.5 Flash TTS
Gemini 3.1 Flash Lite Preview is cheaper on output tokens, while Gemini 3.1 Flash Lite Preview offers a larger context window. Choose Gemini 3.1 Flash Lite Preview or Gemini 2.5 Flash TTS based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Gemini 3.1 Flash Lite Preview | Gemini 2.5 Flash TTS |
|---|---|---|
| Provider | Vertex | Vertex |
| Input / 1M tokens | $0.25 | $0.50 |
| Output / 1M tokens | $1.50 | $10.00 |
| Context window | 1M | 33K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Mar 2026 | Sep 2025 |
FAQ
Is Gemini 3.1 Flash Lite Preview or Gemini 2.5 Flash TTS cheaper?
Gemini 3.1 Flash Lite Preview is cheaper on output tokens ($1.50 vs $10.00 per 1M).
Which has the larger context window, Gemini 3.1 Flash Lite Preview or Gemini 2.5 Flash TTS?
Gemini 3.1 Flash Lite Preview has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.