Nano Banana Pro (Gemini 3 Pro Image) vs Claude Fable 5: side-by-side summary

Nano Banana Pro (Gemini 3 Pro Image) and Claude Fable 5 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

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.

Claude Fable 5, from Anthropic, has a 1,000,000-token context window and is priced at $10/M tokens input, $50/M tokens output on OpenRouter.

Context window

• Nano Banana Pro (Gemini 3 Pro Image): 131,072 tokens
• Claude Fable 5: 1,000,000 tokens

Price

• Nano Banana Pro (Gemini 3 Pro Image): $2/M tokens input, $12/M tokens output
• Claude Fable 5: $10/M tokens input, $50/M tokens output

Provided by

• Nano Banana Pro (Gemini 3 Pro Image): Google
• Claude Fable 5: Anthropic

• Nano Banana Pro (Gemini 3 Pro Image) model details, providers and pricing
• Claude Fable 5 model details, providers and pricing