SIDE BY SIDE
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) vs Nano Banana 2.1
Both are Gemini models. Nano Banana 2.1 was added to OpenRouter on 2026-10-06, Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) on 2026-06-30.
| Field | Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | Nano Banana 2.1 |
|---|---|---|
| Provider | ||
| Family | Gemini | Gemini |
| Province | The Tidal Isles | The Tidal Isles |
| Context window | 66K tokens | 66K tokens |
| Maximum output | 59K tokens | 59K tokens |
| Input / 1M tokens | $0.250 | $1.50 |
| Output / 1M tokens | $1.50 | $7.50 |
| Accepts | text, images | text, images |
| Produces | text, images | text, images |
| Reasoning | Yes | Yes |
| Tool use | No | Yes |
| Added to OpenRouter | 2026-06-30 | 2026-10-06 |
| Model ID | google/gemini-3.1-flash-lite-image | google/gemini-nano-banana-2.1 |
Questions and answers
Which is cheaper, Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) or Nano Banana 2.1?
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) costs less for both input ($0.250 vs $1.50) and output ($1.50 vs $7.50) per million tokens. On input, Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) is 83% cheaper.
Which has the larger context window?
Both have a 66K-token context window.
What can one do that the other cannot?
Only Nano Banana 2.1 supports tool use.
Answers are computed from the 2026-10-24 catalog snapshot.
See Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) in 3DSee Nano Banana 2.1 in 3D