Text and layout
Compare GPT Image 2.5 and Nano Banana Pro on the exact copy and layout you need. Use the same prompt and check spelling, placement, and small details before scaling up.
Image generation
Choose your AI image generation API
Start with the output you need: readable text, edits guided by references, a transparent PNG, or a batch within budget. Then compare models on your own prompt.
Start with your requirements
Start with your requirements
Reference images and local edits
GPT Image supports reference images and an optional mask. Nano Banana Pro accepts image references for prompt-guided edits. Choose a mask-capable model when you need to mark a region; inspect the result because boundaries are not guaranteed.
Transparent backgrounds
GPT Image 2 and 2.5 support transparent output. Choose PNG and set the background to transparent; JPEG cannot preserve transparency.
Drafts and batch budgets
Nano Banana 2 Lite outputs 1K images. Nano Banana 2 also offers 512, 2K, and 4K sizes. Compare the required size and current estimate, then test a small batch before committing the full budget.
Compare starting estimates
These estimates use each model’s lowest-cost configuration and current rates. Sizes, quality, duration, and included inputs differ; compare the same settings on the model pages before planning a budget.
| Model | Starting estimate | Pricing and calculator | API reference |
|---|---|---|---|
| GPT Image 2 | $0.00425per image | Pricing and calculator | API reference |
| GPT Image 2.5 | $0.00448per image | Pricing and calculator | API reference |
| Nano Banana 2.1 | $0.0276per image | Pricing and calculator | API reference |
| Nano Banana 2 | $0.03per image | Pricing and calculator | API reference |
| Nano Banana Pro | $0.03per image | Pricing and calculator | API reference |
| Nano Banana 2 Lite | $0.02565per image | Pricing and calculator | API reference |
Guides for your next step
Nano Banana Pro
GPT Image 2.5 vs Nano Banana Pro: text, editing, references and sizes compared
GPT Image 2.5 vs Nano Banana Pro, the ChatGPT image model against Google: text rendering, masked edits, reference limits, 4K sizes and a pick for each job.
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Nano Banana 2
Nano Banana 2.1 vs Nano Banana 2: what changed, benchmarks and price
Nano Banana 2.1 vs Nano Banana 2 on what Google changed, its own blind-test scores, the price per 1K, 2K and 4K image, thinking levels and the shutdown date.
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Nano Banana Pro
Nano Banana API pricing: cost per image by resolution
Nano Banana API pricing per image for Nano Banana 2, Pro and 2 Lite, read live from the rates that bill you, with cost by resolution from 512 to 4K explained.
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API
GPT Image 2 API in Python: a complete example
A complete, runnable GPT Image 2 API example in Python: submit a request, poll the task, save the images to disk, send reference edits and handle every error.
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Batch generation
Batch GPT Image 2 requests without losing track of tasks
Run a set of GPT Image 2 requests with saved task IDs, resumable polling, and separate downloads. Keep unfinished work visible without submitting images twice.
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Prompting
Nano Banana Pro prompt guide: structure, text, references and edits
Write better Nano Banana Pro prompts: the five parts Google recommends, how to get exact text, give each reference a role, edit safely, plus worked examples.
SeedRouterFrom a test to your application
- 01
Create an API key
Set up authentication, then open the reference for your selected model. Request fields and supported options differ between model families.
- 02
Keep the task ID
Submit the request once, save its task ID, and poll for completion before downloading the result.
- 03
Check the full cost
Budget for drafts, revisions, and final outputs. Match the size, quality, clip length, audio, and reference inputs to your actual request.