AI model · OpenAI
GPT-5.4
Model ID: openai/gpt-5.4
- Input
- $2.50 per 1M tokens
- Output
- $15 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 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...
Sources
- OpenAI: GPT-5.4 on OpenRouter — read 2 Oct 2026