Nano Banana 2 (Gemini 3.1 Flash Image) vs Sonar Pro Search: side-by-side summary

Nano Banana 2 (Gemini 3.1 Flash Image) and Sonar Pro Search 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, $3/M tokens output on OpenRouter.

Sonar Pro Search, from Perplexity, has a 200,000-token context window and is priced at $3/M tokens input, $15/M tokens output on OpenRouter.

Context window

• Nano Banana 2 (Gemini 3.1 Flash Image): 131,072 tokens
• Sonar Pro Search: 200,000 tokens

Price

• Nano Banana 2 (Gemini 3.1 Flash Image): $0.50/M tokens input, $3/M tokens output
• Sonar Pro Search: $3/M tokens input, $15/M tokens output

Provided by

• Nano Banana 2 (Gemini 3.1 Flash Image): Google
• Sonar Pro Search: Perplexity

• Nano Banana 2 (Gemini 3.1 Flash Image) model details, providers and pricing
• Sonar Pro Search model details, providers and pricing