Nano Banana 2.1 vs GPT Image 2
rates, context and capabilities side by side on the impossibl api, and what the same workload costs on each.
| specification | Nano Banana 2.1 google/gemini-nano-banana-2.1 | GPT Image 2 openai/gpt-image-2 |
|---|---|---|
| input · usd / 1m tok | $1.50 | $5.00 |
| output · usd / 1m tok | $30.00 | $30.00 |
| context window | 65.54ktokens | 32ktokens |
| modalities · in → out | takes text in, gives image out | takes text in, gives image out |
pricing
| base api rates · usd per 1m tokens | Nano Banana 2.1 google/gemini-nano-banana-2.1 | GPT Image 2 openai/gpt-image-2 |
|---|---|---|
| input | $1.50 | $5.00 |
| output | $30.00 | $30.00 |
| text and thinking output | $7.50 | not applicable |
a shared cost estimate needs models of one type with token pricing; compare the published rates and billing units here.
specifications
| as published | Nano Banana 2.1 google/gemini-nano-banana-2.1 | GPT Image 2 openai/gpt-image-2 |
|---|---|---|
| creator | OpenAI | |
| model type | Image generation | Image generation |
| context window | 65,536tokens | 32,000tokens |
| input | takes text in, gives image out | takes text in, gives image out |
| output | image | image |
| tool calling | not supported | not verified |
| released | oct 6, 2026 | apr 21, 2026 |
| endpoint | /v1/images/generations | /v1/images/generations |
unknown means the public catalog does not establish that fact. a model's documented capabilities can differ from what a particular api supports. see the model documentation for integration details.
benchmarks
| primary configuration | Nano Banana 2.1 google/gemini-nano-banana-2.1 no benchmarks yet | GPT Image 2 openai/gpt-image-2 text-to-image |
|---|---|---|
| intelligence index · gateway rank | not measured | not measured |
each column describes the tested configuration named under the model; performance and costs can differ on impossibl. a score one model was not measured on is left blank rather than scored zero. indices are ranked against every model on the gateway with one. last checked 2026-10-21.
summary
Nano Banana 2.1 and GPT Image 2 are available through the Impossibl API. they share the /v1/images/generations endpoint; the model identifier selects the model for a request.
Nano Banana 2.1 is created by Google. It has a 65,536-token context window. Base API pricing (USD): $1.50 per million input tokens; $30.00 per million output tokens.
GPT Image 2 is created by OpenAI. It has a 32,000-token context window. Base API pricing (USD): $5.00 per million input tokens; $30.00 per million output tokens.
Nano Banana 2.1 →GPT Image 2 →
this page compares Nano Banana 2.1 vs GPT Image 2 as listed by the impossibl public api. prices and availability come from that catalog, refreshed here every five minutes. this is an impossibl offering, not a comparison of independent hosting-provider quotes.
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