Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Listed on OpenRouter as google/gemini-3.1-flash-image-preview since Mar 3, 2026. 110 snapshot observations, 1 repricing.
$1.13per 1M blended · $0.50 in / $3.00 out
USD per 1M tokens · blended at 3 input : 1 output · at this price for 217 days (since Mar 6, 2026)
All-time low$0.56Mar 3, 2026
All-time high$1.13Mar 6, 2026
Change since first seen+100.0%$0.56 on Mar 3, 2026
Listed price over time
| Observed | Input | Output | Blended | Change |
|---|---|---|---|---|
| Mar 6, 2026 | $0.50 | $3.00 | $1.13 | +100.0% |
| Mar 3, 2026 | $0.25 | $1.50 | $0.56 | first observation |
Where it is listed today
Current listed rates across the sources LLMPI compares. The cheapest blended row is highlighted; lower price never implies identical terms, speed, or quality.
| Source | Input | Output | Blended | Listing ID |
|---|---|---|---|---|
| OpenRouter Pricing evidence | $0.50 | $3.00 | $1.13 | google/gemini-3.1-flash-image-preview |
Evidence and scope
- Source
- OpenRouter public model listing
- Archive
- Wayback Machine snapshots of that listing (weekly-grade, from July 2023) plus LLMPI's own daily snapshots since June 2026
- Last observed
- Oct 9, 2026
- Data
- history.json (CC BY 4.0)
This is the listed standard text-token rate for one OpenRouter listing ID. It does not normalize caching, batch discounts, long-context tiers, providers behind the listing, or model quality. A price can also move because OpenRouter's default route changed provider.