What is the context window of GPT-5.4 Image 2?
GPT-5.4 Image 2 has a published context window of 272K tokens (272,000). The snapshot lists a 128,000 token catalogue-declared route output cap. OpenRouter catalogue or provider-endpoint declaration. Limits can vary by provider and prompt length; a model-wide maximum has not been independently verified. The providers table lists each endpoint's context limit.