Overview
Nano Banana 2 (Gemini 3.1 Flash Image) vs Muse Image vs GPT Image 2.5 Sunburst: side-by-side summary
Nano Banana 2 (Gemini 3.1 Flash Image), Muse Image, and GPT Image 2.5 Sunburst are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Nano Banana 2 (Gemini 3.1 Flash Image), from Google, has a 131,072-token context window and is priced at $0.50/M tokens input, $60/M tokens output on OpenRouter.
Muse Image, from Meta, has a 65,536-token context window and is priced at $0.01/image on OpenRouter.
GPT Image 2.5 Sunburst, from OpenAI, has a 400,000-token context window and is priced at $8/M tokens input, $30/M tokens output on OpenRouter.
- Context window
- Nano Banana 2 (Gemini 3.1 Flash Image): 131,072 tokens
- Muse Image: 65,536 tokens
- GPT Image 2.5 Sunburst: 400,000 tokens
- Price
- Nano Banana 2 (Gemini 3.1 Flash Image): $0.50/M tokens input, $60/M tokens output
- Muse Image: $0.01/image
- GPT Image 2.5 Sunburst: $8/M tokens input, $30/M tokens output
- Provided by
- Nano Banana 2 (Gemini 3.1 Flash Image): Google
- Muse Image: Meta
- GPT Image 2.5 Sunburst: OpenAI