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

Gemini 2.5 Flash Image Preview (Nano Banana) and Horizon Beta 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.

Horizon Beta, from OpenRouter, has a 256,000-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
• Horizon Beta: 256,000 tokens

Price

• Gemini 2.5 Flash Image Preview (Nano Banana): Pricing varies by provider
• Horizon Beta: Pricing varies by provider

Provided by

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

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