Overview
Nano Banana 2 (Gemini 3.1 Flash Image Preview) vs GPT-5.4 Image 2: side-by-side summary
Nano Banana 2 (Gemini 3.1 Flash Image Preview) and GPT-5.4 Image 2 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 Preview), from Google, has a 65,536-token context window and is priced at $0.50/M tokens input, $60/M tokens output on OpenRouter.
GPT-5.4 Image 2, from OpenAI, has a 272,000-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 Preview): 65,536 tokens
- GPT-5.4 Image 2: 272,000 tokens
- Price
- Nano Banana 2 (Gemini 3.1 Flash Image Preview): $0.50/M tokens input, $60/M tokens output
- GPT-5.4 Image 2: $8/M tokens input, $30/M tokens output
- Provided by
- Nano Banana 2 (Gemini 3.1 Flash Image Preview): Google
- GPT-5.4 Image 2: OpenAI