Gemini 2.5 Flash Image Preview (Nano Banana) vs Gemini 2.5 Flash Preview 09-2025: side-by-side summary

Gemini 2.5 Flash Image Preview (Nano Banana) and Gemini 2.5 Flash Preview 09-2025 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

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.

Gemini 2.5 Flash Preview 09-2025, from Google, has a 1,048,576-token context window and is priced by the provider serving it on OpenRouter.

Context window

• Gemini 2.5 Flash Image Preview (Nano Banana): 32,768 tokens
• Gemini 2.5 Flash Preview 09-2025: 1,048,576 tokens

Price

• Gemini 2.5 Flash Image Preview (Nano Banana): Pricing varies by provider
• Gemini 2.5 Flash Preview 09-2025: Pricing varies by provider

Provided by

• Gemini 2.5 Flash Image Preview (Nano Banana): Google
• Gemini 2.5 Flash Preview 09-2025: Google

• Gemini 2.5 Flash Image Preview (Nano Banana) model details, providers and pricing
• Gemini 2.5 Flash Preview 09-2025 model details, providers and pricing