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 text and image inputs, enabling high-context reasoning, coding, and multimodal analysis within the same workflow. The model delivers improved performance in coding, document understanding, tool use, and instruction following. It is designed as a strong default for both general-purpose tasks and software engineering, capable of generating production-quality code, synthesizing information across multiple sources, and executing complex multi-step workflows with fewer iterations and greater token efficiency.
Try NowComplex reasoning or agentic coding with openai
Long-context document analysis or synthesis
Multi-step workflows requiring production-quality code
1,050,000 tokens
128,000 tokens
$2.50 per 1M tokens
$15 per 1M tokens
$0.25 per 1M tokens
$10 per 1K calls
$30 per 1K calls
$400 per 1K calls