DeepSeek V4 Flash 0731 vs Nano Banana 2 (Gemini 3.1 Flash Image): side-by-side summary

DeepSeek V4 Flash 0731 and Nano Banana 2 (Gemini 3.1 Flash Image) are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

DeepSeek V4 Flash 0731, from DeepSeek, has a 1,310,720-token context window and is priced at $0.065/M tokens input, $0.14/M tokens output on OpenRouter.

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.

Context window

• DeepSeek V4 Flash 0731: 1,310,720 tokens
• Nano Banana 2 (Gemini 3.1 Flash Image): 131,072 tokens

Price

• DeepSeek V4 Flash 0731: $0.065/M tokens input, $0.14/M tokens output
• Nano Banana 2 (Gemini 3.1 Flash Image): $0.50/M tokens input, $3/M tokens output

Provided by

• DeepSeek V4 Flash 0731: DeepSeek
• Nano Banana 2 (Gemini 3.1 Flash Image): Google

• DeepSeek V4 Flash 0731 model details, providers and pricing
• Nano Banana 2 (Gemini 3.1 Flash Image) model details, providers and pricing