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.
Input
Output
Context
1050K
Max Output
128K
Parameters
—
Technical Specifications
Model TypeChat
Context Window1.1M
Max Output Tokens128K
Parameters—
Training Cutoff—
Licenseproprietary
Capabilities
Input Modalities
textimagefile
Output Modalities
text
Features
code_generationfunction_callingjson_modereasoningstreamingtext_generationvision
Benchmarks
10.6%
HLE
74.8%
GPQA
47.1%
SciCode
41.0
Coding
35.4
Intelligence
67.6
Speed (tok/s)
0.640
TTFA (s)
0.640
TTFT (s)
Resources & Links
proprietary — Proprietary - API access only
Related Tools
Data sourced from official provider APIs and documentation
Last updated: May 5, 2026
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