Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) vs GPT Image 1 Mini: side-by-side summary

Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) and GPT Image 1 Mini are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image), from Google, has a 65,536-token context window and is priced at $0.25/M tokens input, $1.50/M tokens output on OpenRouter.

GPT Image 1 Mini, from OpenAI, has a 400,000-token context window and is priced at $2.50/M tokens input, $2.50/M tokens output on OpenRouter.

Context window

• Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image): 65,536 tokens
• GPT Image 1 Mini: 400,000 tokens

Price

• Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image): $0.25/M tokens input, $1.50/M tokens output
• GPT Image 1 Mini: $2.50/M tokens input, $2.50/M tokens output

Provided by

• Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image): Google
• GPT Image 1 Mini: OpenAI

• Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) model details, providers and pricing
• GPT Image 1 Mini model details, providers and pricing