--- title: "Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) — unrated, priced in this catalogue · Undominated.ai" canonical: https://undominated.ai/models/google__gemini-3.1-flash-image-preview/ description: "Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview): $0.500/M in, $3.00/M out. No independent quality score in this catalogue — unrated, not ranked, not scored zero." --- # Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) — unrated, priced in this catalogue · Undominated.ai > Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview): $0.500/M in, $3.00/M out. No independent quality score in this catalogue — unrated, not ranked, not scored zero. [Check base rates for this workload](/check/google__gemini-3.1-flash-image-preview/) [Cheaper alternatives](/alternatives/) [Family](/families/gemini-3/) [Compare models](https://undominated.ai/compare/?models=google%2Fgemini-3.1-flash-image-preview) Comparison context Choose up to three standard models in Compare. Requirements and prompt length apply in Compare. This page keeps its stated price basis and workload controls. MODEL PROOF # Nano Banana 2 (Gemini 3.1 Flash Image Preview) Google · 26 Feb 2026 Balanced Summarise Chat Code gen Agentic NOT INDEPENDENTLY RATED ## No independent LMArena score is published for this model. **$1.13** / 1M tokens Balanced · 3 tokens in per 1 out Evidence as of 06 Oct 2026 [openrouter/models](https://openrouter.ai/api/v1/models) Independent LMArena score Not independently rated Context window 65.54K Maximum output 58.98K Input modalities image, text Output modalities image, text Published input price $0.500 / 1M tokens Published output price $3.00 / 1M tokens Pricing kind fixed Inspect [complete billing conditions](#billing-details) and endpoint terms below. Price from Google AI Studio: the cheapest offer that is serving, at standard delivery and at the maker’s precision or better, at its standard rate. Every price dimension · USD per million tokens | Input | $0.500 /M | | --- | --- | | Output | $3.00 /M | | Cached input | Unknown /M | | Cache write | Unknown /M | | Cache write 1h | Unknown /M | | Reasoning | Unknown /M | | Web search | $0.014 /call | ### Who sells it The same weights, different shops. Cheapest is not like-for-like when serving precision differs. 1 provider offers · rates, limits and conditions Rates are USD per million tokens. Endpoint terms can differ even when the quoted price and precision match. A listed parameter is a provider declaration, not a task-success test. | Seller | Input | Output | Precision | Uptime (1d) | | --- | --- | --- | --- | --- | | Seller Google AI Studio google-ai-studio Endpoint terms Cached input /M Unknown Context limit 65,536 tokens Output limit 58,982 tokens Tools Not listed by endpoint Reasoning Listed by endpoint Promotional discount None reported Uptime · last 30 minutes 99.83% | Input $0.500 | Output $3.00 | Precision undeclared | Uptime (1d) 99.95% | ### Independent scores No independent benchmark has measured this model. Unrated is not a score of zero. #### Best rankings by task - Graphicdesign #4 1264 - Image #4 1275 - Logo #4 1264 Per-task Elo and rank from [Design Arena](https://designarena.ai), via OpenRouter’s model feed. The rank is the feed’s, and it counts models OpenRouter does not list. ### Capability | Context window | 65K | | --- | --- | | Max output | 58K | | Input modes | image, text | | Tool use | no | | Reasoning | optional | | Open weights | no | ### Provenance | Price source | [openrouter.ai](https://openrouter.ai/api/v1/models) | | --- | --- | | Fetched | 2026-10-06 | | Quality data | unrated | Gemini 3.1 Flash Image Preview, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines... ## Questions this page answers What does Nano Banana 2 (Gemini 3.1 Flash Image Preview) cost? $0.500/M in, $3.00/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription. Does Nano Banana 2 (Gemini 3.1 Flash Image Preview) have an independent quality score? Nano Banana 2 (Gemini 3.1 Flash Image Preview) has no independent quality score in this catalogue. Unrated is not a score of zero. What beats Nano Banana 2 (Gemini 3.1 Flash Image Preview)? Nano Banana 2 (Gemini 3.1 Flash Image Preview) has no independent quality score. Unrated is not a score of zero. Does this page use Artificial Analysis scores for Nano Banana 2 (Gemini 3.1 Flash Image Preview)? No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated. Does a missing score mean Nano Banana 2 (Gemini 3.1 Flash Image Preview) scored zero? Unrated is not a score of zero. MODEL MONUMENT ## Save or share this proof Download proof card · 1200 × 630 Preview and more sharing options Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview). Balanced workload. Not independently rated. Evidence as of 06 Oct 2026. Copy model link Download square card · 1080 × 1080 Copy landscape image Share landscape card ## Related No independent quality score, so there is no dominator to name. Unrated is not a clean bill of health. - Same vendor [Gemini 3.8 Flash](/models/google__gemini-3.8-flash/) - Google models [Google](/providers/google/) - Where this model appears [subscription vs API](/plans/) - Same vendor [Gemini 3.7 Flash](/models/google__gemini-3.7-flash/) - Same vendor [Gemini 3.1 Pro Preview](/models/google__gemini-3.1-pro-preview/) ## Badge The verdict as one SVG, for a README or a docs page. It states this model's dominance status at the balanced workload on the LMArena lens, with the date it was computed, and it is rebuilt with the catalogue — so it changes when the verdict changes, including to one you would rather it did not. 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