gemini-3.1-flash-image
Gemini 3.1 Flash Image (Nano Banana 2) 🍌 — priced by Google.
Published tiers
What the most recent complete run published for this model, one row per priced tier, each with the source it was read from.
| Tier | Input USD/1M | Output USD/1M | Verified | Read from | Reader | Flags |
|---|---|---|---|---|---|---|
| batch | 0.25 | 1.5 | 2 hours ago2026-08-16 18:02Z | Gemini API pricing (docs)ai.google.dev | gemini_pricing_tables | confirmed |
| batch:image | — | 30 | 2 hours ago2026-08-16 18:02Z | Gemini API pricing (docs)ai.google.dev | gemini_pricing_tables | confirmed |
| flat | 0.5 | 3 | 2 hours ago2026-08-16 18:02Z | Gemini API pricing (docs)ai.google.dev | gemini_pricing_tables | confirmed |
| flat:image | — | 60 | 2 hours ago2026-08-16 18:02Z | Gemini API pricing (docs)ai.google.dev | gemini_pricing_tables | confirmed |
Price history
Every distinct value this price has taken, oldest first — what the price did, not how often we happened to look. Rows marked backfill came from a public git history of a third-party pricing file and were never verified by us; they extend the series backwards and are flagged rather than hidden.
batch
2 distinct value(s)inputoutput · range 0.125–1.5 USD/1M
| First seen | Last seen | Input USD/1M | Output USD/1M | Reads | Source | Last verified by us | Flags |
|---|---|---|---|---|---|---|---|
| 2026-06-25 22:40Z | 2026-06-25 22:40Z | 0.125 | 0.75 | 1 | LiteLLM model_prices_and_context_window.json (git history) | never | backfillunconfirmed |
| 2026-08-16 04:15Z | 2026-08-16 18:02Z | 0.25 | 1.5 | 11 | Gemini API pricing (docs) | 2026-08-16 18:02Z |
batch:image
1 distinct value(s)One value across the whole archive: this price has not moved in anything we have observed.
| First seen | Last seen | Input USD/1M | Output USD/1M | Reads | Source | Last verified by us | Flags |
|---|---|---|---|---|---|---|---|
| 2026-08-16 04:15Z | 2026-08-16 18:02Z | — | 30 | 11 | Gemini API pricing (docs) | 2026-08-16 18:02Z |
flat
2 distinct value(s)inputoutput · range 0.25–3 USD/1M
| First seen | Last seen | Input USD/1M | Output USD/1M | Reads | Source | Last verified by us | Flags |
|---|---|---|---|---|---|---|---|
| 2026-06-25 22:40Z | 2026-06-25 22:40Z | 0.25 | 1.5 | 1 | LiteLLM model_prices_and_context_window.json (git history) | never | backfillunconfirmed |
| 2026-08-15 23:13Z | 2026-08-16 18:02Z | 0.5 | 3 | 16 | Gemini API pricing (docs) | 2026-08-16 18:02Z |
flat:image
1 distinct value(s)One value across the whole archive: this price has not moved in anything we have observed.
| First seen | Last seen | Input USD/1M | Output USD/1M | Reads | Source | Last verified by us | Flags |
|---|---|---|---|---|---|---|---|
| 2026-08-16 04:15Z | 2026-08-16 18:02Z | — | 60 | 11 | Gemini API pricing (docs) | 2026-08-16 18:02Z |
Provenance
Read by gemini_pricing_tables from Gemini API pricing (docs). Each row above links to the exact page its number came from. The vendor's page is authoritative: if it and this page disagree, the vendor is right and we are wrong.