GPT-5.4
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.
Input
Output
Context
1050K
Max Output
128K
Parameters
—
Technical Specifications
Capabilities
Input Modalities
Output Modalities
Benchmarks
Pricing
per 1M tokens • updated regularlyPricing
Input
$2.50
Output
$15.00
Related Tools
Data sourced from official provider APIs and documentation
Last updated: Mar 16, 2026
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