Compare LongCat Flash Chat from meituan and GPT-5 Codex 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.
LongCat Flash Chat and GPT-5 Codex are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
LongCat Flash Chat, from meituan, has a 131,072-token context window and is priced by the provider serving it on OpenRouter.
GPT-5 Codex, from OpenAI, has a 400,000-token context window and is priced by the provider serving it on OpenRouter.