GoogleFastReleased 7 October 2025
Nano Banana (Gemini 2.5 Flash Image) pricing, context and benchmark
Gemini 2.5 Flash Image, a.k.a.
33K
Input context
8K
Output context
$0.3
Official input
$2.5
Official output
n/a
AA index
01 · Model Overview
Everything that matters, in one table
Context, pricing, cache, modalities and tooling, from the model registry and Artificial Analysis.
| Model | Nano Banana (Gemini 2.5 Flash Image) |
| Model ID | google/gemini-2.5-flash-image |
| Provider | |
| Release date | 7 October 2025 |
| Status | Generally available |
| Input context | 32,768 tokens |
| Output context | 8,192 tokens |
| Official input pricing | $0.3 per 1M tokens |
| Official output pricing | $2.5 per 1M tokens |
| Cache read pricing | $0.03 per 1M tokens |
| Market input pricing | $0.3 per 1M (cheapest route) |
| Market output pricing | $2.5 per 1M (cheapest route) |
| Input modalities | image · text |
| Output modalities | image · text |
| Reasoning control | Not exposed |
| Tool support | Text generation only |
| Tokenizer | Gemini |
| Provider routes | 1 endpoint |
| Artificial Analysis index | Not published |
| Speed | Not published |
| Knowledge cutoff | Not publicly stated |
Input and output support
| Modality | Input | Output | Billed at |
|---|---|---|---|
| Text | ✓ yes | ✓ yes | $0.3 in |
| Image | ✓ yes | ✓ yes | $0.3 in |
| Audio | no | no | not supported |
| Video | no | no | not supported |
| File (PDF) | no | no | not supported |
02 · Overview
What is Nano Banana (Gemini 2.5 Flash Image)?
Gemini 2.5 Flash Image, a.k.a.
"Nano Banana," is now generally available.
It is a state of the art image generation model with contextual understanding.
Nano Banana (Gemini 2.5 Flash Image) carries a 33K token window, uses the Gemini tokenizer and is served by Google. On Hoodgen it sits in the Fast tier of the model menu next to its siblings, so you can switch mid conversation without losing the thread.
03 · Release
Release and what changed from the previous version
Released7 October 2025
| Property | Gemini 2.5 Flash Lite | Nano Banana (Gemini 2.5 Flash Image) | Change |
|---|---|---|---|
| Released | 2025 | 2025 | Same release window |
| Context | 1.05M | 33K | Changed |
| Max output | 66K | 8K | Changed |
| Input price | $0.1 | $0.3 | Higher |
| Output price | $0.4 | $2.5 | Higher |
| Input modalities | text, image, file, audio, video | image, text | Unchanged |
| AA index | n/a | n/a | Newer benchmark run |
04 · Capabilities
Features and capabilities
{ }
Structured outputs
Schema constrained JSON with response_format, so no parse and retry loop in your code.
◉
Vision
Screenshots, charts and photographed documents are read at the text token rate.
⚡
Prompt caching
Cached input costs $0.03 per million instead of $0.3, so stable prefixes get cheaper.
⌁
Seeds
A seed can be pinned so the same prompt is reproducible across test runs.
07 · Use cases
What can you do with Nano Banana (Gemini 2.5 Flash Image)?
High volume drafts
Captions, titles, product blurbs and rewrite passes where cost per call dominates.
Inline assistants
Autocomplete, quick replies and menu helpers that must answer inside a second.
Batch classification
Tagging, routing and extraction across thousands of short inputs.
Cheap agent loops
Tool calling loops that do not need frontier grade reasoning.
08 · Cost levers
Prompt caching and how to cut the bill
Cached input bills at $0.03 per million instead of $0.3. Keep the system prompt and documents first and the changing question last, so every call hits the cache.
09 · Pricing
Nano Banana (Gemini 2.5 Flash Image) pricing
Official pricing
List price
$0.3 / 1M in
$2.5 / 1M out
- $0.03 cached input
- 33K context
- image, text input
Cheapest route
$0.3 / 1M in
$2.5 / 1M out
- 1 route on OpenRouter
- What Hoodgen routes to first
- Same model, lower bill
Market pricing, every route
| Provider | Tier | Input | Output | Cache read | Uptime 24h |
|---|---|---|---|---|---|
| standard | $0.3 | $2.5 | $0.03 | 100.0% |
API pricing and cost calculator
| Rate | Per call | Total | Credits |
|---|---|---|---|
| Cheapest route | $0.0065 | $3.25 | 3093 |
| List price | $0.0065 | $3.25 | 3093 |
10 · Developers
API and developer information
| Model ID | google/gemini-2.5-flash-image |
| Endpoint | https://openrouter.ai/api/v1/chat/completions |
| Parameters | max_tokens · response_format · seed · stop · structured_outputs · temperature · top_p |
| Streaming | Yes, server sent events |
| Modality string | text+image->text+image |
| Max prompt tokens | 32,768 |
| Max completion tokens | 8,192 |
curl https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "google/gemini-2.5-flash-image",
"messages": [{ "role": "user", "content": "Summarise this document." }],
"max_tokens": 1024
}'11 · Limitations
Model limitations
| Output cap | 8,192 tokens per request. Long deliverables have to be chunked. |
| Benchmarks not published | Artificial Analysis does not publish an Intelligence Index for this release, so no benchmark score is claimed here. |
| Knowledge cutoff | The provider does not state a fixed cutoff for every release. Verify very recent events against search. |
| Depth ceiling | Fast tier: strong on throughput, weaker than flagship tiers on long multi step reasoning. |
12 · Comparison
Nano Banana (Gemini 2.5 Flash Image) vs other Google models
| Model | Context | Input /1M | Output /1M | AA index | Released |
|---|---|---|---|---|---|
| Nano Banana (Gemini 2.5 Flash Image) | 33K | $0.3 | $2.5 | n/a | 2025 |
| Gemini 3.1 Pro Preview | 1.05M | $2 | $12 | n/a | 2026 |
| Gemini 4 Argon | 1.05M | $2 | $10 | 50 | Oct 2026 |
| Gemini 4 Carbon | 1.05M | $2 | $10 | n/a | 2026 |
| Gemini 3.1 Pro Preview Custom Tools | 1.05M | $2 | $12 | n/a | 2026 |
| Nano Banana Pro (Gemini 3 Pro Image) | 131K | $2 | $12 | n/a | 2026 |
13 · Privacy
Privacy and data policy
- On Hoodgen, prompts and attachments answer that request and stay in your conversation history so you can reopen it. They are not used to train models.
- Requests route through OpenRouter to Google and are covered by that provider's API terms.
- Do not paste secrets or personal data you would not send to any hosted model.
14 · FAQ
Nano Banana (Gemini 2.5 Flash Image) questions, answered
Nano Banana (Gemini 2.5 Flash Image) is a fast model from Google, released 7 October 2025. Gemini 2.5 Flash Image, a.k.a.
✦
Start chatting with Nano Banana (Gemini 2.5 Flash Image)
Free to try on Hoodgen AI, with a live credit estimate before every send. No API key, no setup.