AI model · OpenAI
GPT-5.4 Pro
Model ID: openai/gpt-5.4-pro
- Input
- $30 per 1M tokens
- Output
- $180 per 1M tokens
- Context
- 1.1M tokens at once
- Max output
- 128K tokens per reply
- Released
- 5 Mar 2026 OpenAI
What it can do
- YesReasoning
- YesTool calling
- YesImage input
- NoOpen weights
- NoFree to use
Takes text, image, file; gives text.
How its listing describes it
GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks. It features a 1M+ token context window (922K input, 128K...
Sources
- OpenAI: GPT-5.4 Pro on OpenRouter — read 2 Oct 2026