OpenAI: GPT-5.4
by openai
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.
975 claims submitted by 57 reviewers
According to the prompt, the "What you'll learn" bullet point should be included into that 2-sentence summary. The respo...
— Zehong Hu
"The AI response includes unnecessary conversational filler at both the beginning ('Absolutely — here’s a...') and the e...
— Thuy Hang Vo
"The AI response satisfies all constraints of the prompt flawlessly. It delivers a witty, relatable, and painfully funny...
— Thuy Hang Vo
The AI response is exceptionally well-written and fits the prompt's requirements perfectly. It effectively utilizes shor...
— Thuy Hang Vo
AI refuses to engage on this issue.
— Bécaye Guindo
This evaluation was conducted independently. OpenAI: GPT-5.4 did not participate in or pay for this evaluation. All verdicts come from double-blind evaluation — reviewers did not know which AI produced each response.
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