Gemini 2.5 Flash Image Preview (Nano Banana) vs Llama Guard 4 12B: side-by-side summary

Gemini 2.5 Flash Image Preview (Nano Banana) and Llama Guard 4 12B are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Gemini 2.5 Flash Image Preview (Nano Banana), from Google, has a 32,768-token context window and is priced by the provider serving it on OpenRouter.

Llama Guard 4 12B, from Meta Llama, has a 1,048,576-token context window and is priced at $0.18/M tokens input, $0.18/M tokens output on OpenRouter.

Context window

• Gemini 2.5 Flash Image Preview (Nano Banana): 32,768 tokens
• Llama Guard 4 12B: 1,048,576 tokens

Price

• Gemini 2.5 Flash Image Preview (Nano Banana): Pricing varies by provider
• Llama Guard 4 12B: $0.18/M tokens input, $0.18/M tokens output

Provided by

• Gemini 2.5 Flash Image Preview (Nano Banana): Google
• Llama Guard 4 12B: Meta Llama

• Gemini 2.5 Flash Image Preview (Nano Banana) model details, providers and pricing
• Llama Guard 4 12B model details, providers and pricing