Gemini 3.1 Flash Lite Preview vs Gemini 3.1 Pro Preview: side-by-side summary

Gemini 3.1 Flash Lite Preview and Gemini 3.1 Pro Preview are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Gemini 3.1 Flash Lite Preview, from Google, has a 1,048,576-token context window and is priced at $0.25/M tokens input, $1.50/M tokens output on OpenRouter.

Gemini 3.1 Pro Preview, from Google, has a 1,048,576-token context window and is priced at $2/M tokens input, $12/M tokens output on OpenRouter.

Context window

• Gemini 3.1 Flash Lite Preview: 1,048,576 tokens
• Gemini 3.1 Pro Preview: 1,048,576 tokens

Price

• Gemini 3.1 Flash Lite Preview: $0.25/M tokens input, $1.50/M tokens output
• Gemini 3.1 Pro Preview: $2/M tokens input, $12/M tokens output

Provided by

• Gemini 3.1 Flash Lite Preview: Google
• Gemini 3.1 Pro Preview: Google

• Gemini 3.1 Flash Lite Preview model details, providers and pricing
• Gemini 3.1 Pro Preview model details, providers and pricing