Gemini 2.5 Flash vs Gemini 2.5 Flash Image Preview (Nano Banana): side-by-side summary

Gemini 2.5 Flash and Gemini 2.5 Flash Image Preview (Nano Banana) are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Gemini 2.5 Flash, from Google, has a 1,048,576-token context window and is priced at $0.30/M tokens input, $2.50/M tokens output on OpenRouter.

Gemini 2.5 Flash Image Preview (Nano Banana), from Google, has a 32,768-token context window and is priced by the provider serving it on OpenRouter.

Context window

• Gemini 2.5 Flash: 1,048,576 tokens
• Gemini 2.5 Flash Image Preview (Nano Banana): 32,768 tokens

Price

• Gemini 2.5 Flash: $0.30/M tokens input, $2.50/M tokens output
• Gemini 2.5 Flash Image Preview (Nano Banana): Pricing varies by provider

Provided by

• Gemini 2.5 Flash: Google
• Gemini 2.5 Flash Image Preview (Nano Banana): Google

• Gemini 2.5 Flash model details, providers and pricing
• Gemini 2.5 Flash Image Preview (Nano Banana) model details, providers and pricing