Compare Gemini 2.5 Flash Preview 09-2025 from Google and Grok 4 from SpaceXAI 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 Preview 09-2025 and Grok 4 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Gemini 2.5 Flash Preview 09-2025, from Google, has a 1,048,576-token context window and is priced by the provider serving it on OpenRouter.
Grok 4, from SpaceXAI, has a 256,000-token context window and is priced by the provider serving it on OpenRouter.