Compare Gemini 2.5 Flash Lite Preview 09-2025 from Google and GPT-5 Nano from OpenAI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
Gemini 2.5 Flash Lite Preview 09-2025 and GPT-5 Nano are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Gemini 2.5 Flash Lite Preview 09-2025, from Google, has a 1,048,576-token context window and is priced by the provider serving it on OpenRouter.
GPT-5 Nano, from OpenAI, has a 400,000-token context window and is priced at $0.05/M tokens input, $0.40/M tokens output on OpenRouter.