Mk1.5 vs Gemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite Preview is cheaper on output tokens, while Gemini 3.1 Flash Lite Preview offers a larger context window. Choose Mk1.5 or Gemini 3.1 Flash Lite Preview based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Mk1.5 | Gemini 3.1 Flash Lite Preview |
|---|---|---|
| Provider | AI/ML API | |
| Input / 1M tokens | $0.16 | $0.25 |
| Output / 1M tokens | $1.59 | $1.50 |
| Context window | 37K | 1M |
| Parameters | — | — |
| Open weights | No | No |
| Released | Sep 2026 | Mar 2026 |
| LMArena (Chatbot Arena) Elo score | — | 1416 |
| LMArena WebDev Elo score | — | 1257 |
| LMArena Vision Elo score | — | 1240 |
FAQ
Is Mk1.5 or Gemini 3.1 Flash Lite Preview cheaper?
Gemini 3.1 Flash Lite Preview is cheaper on output tokens ($1.50 vs $1.59 per 1M).
Which has the larger context window, Mk1.5 or Gemini 3.1 Flash Lite Preview?
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.