GPT-5.6 Sol vs Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image): side-by-side summary

GPT-5.6 Sol and Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

GPT-5.6 Sol, from OpenAI, has a 1,050,000-token context window and is priced at $2.50/M tokens input, $15/M tokens output on OpenRouter.

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.

Context window

• GPT-5.6 Sol: 1,050,000 tokens
• Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image): 65,536 tokens

Price

• GPT-5.6 Sol: $2.50/M tokens input, $15/M tokens output
• Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image): $0.25/M tokens input, $1.50/M tokens output

Provided by

• GPT-5.6 Sol: OpenAI
• Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image): Google

• GPT-5.6 Sol model details, providers and pricing
• Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) model details, providers and pricing