Seed 2.1 Turbo vs Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image): side-by-side summary

Seed 2.1 Turbo 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.

Seed 2.1 Turbo, from bytedance-seed, has a 262,144-token context window and is priced at $0.50/M tokens input, $2.50/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

• Seed 2.1 Turbo: 262,144 tokens
• Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image): 65,536 tokens

Price

• Seed 2.1 Turbo: $0.50/M tokens input, $2.50/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

• Seed 2.1 Turbo: bytedance-seed
• Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image): Google

• Seed 2.1 Turbo model details, providers and pricing
• Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) model details, providers and pricing