Compare Gemini 3 Flash Preview from Google and GPT-5.2 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.
AI Model Comparison
Gemini 3 Flash Preview and GPT-5.2 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Gemini 3 Flash Preview, from Google, has a 1,048,576-token context window and is priced at $0.50/M tokens input, $3/M tokens output on OpenRouter.
GPT-5.2, from OpenAI, has a 400,000-token context window and is priced at $1.75/M tokens input, $14/M tokens output on OpenRouter.