Seed 2.1 Turbo vs Nano Banana Pro (Gemini 3 Pro Image): side-by-side summary

Seed 2.1 Turbo and Nano Banana Pro (Gemini 3 Pro 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 Pro (Gemini 3 Pro Image), from Google, has a 131,072-token context window and is priced at $2/M tokens input, $12/M tokens output on OpenRouter.

Context window

• Seed 2.1 Turbo: 262,144 tokens
• Nano Banana Pro (Gemini 3 Pro Image): 131,072 tokens

Price

• Seed 2.1 Turbo: $0.50/M tokens input, $2.50/M tokens output
• Nano Banana Pro (Gemini 3 Pro Image): $2/M tokens input, $12/M tokens output

Provided by

• Seed 2.1 Turbo: bytedance-seed
• Nano Banana Pro (Gemini 3 Pro Image): Google

• Seed 2.1 Turbo model details, providers and pricing
• Nano Banana Pro (Gemini 3 Pro Image) model details, providers and pricing