openai/gpt-5.4-proGPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks.
Scores on standardized evaluations. Higher is better — and rank shows where GPT-5.4 Pro lands among all models tracked on Model Beat.
Abstract visual reasoning
Harder abstract reasoning
Graduate-level scientific reasoning
Frontier of human expert knowledge
Common-sense trick questions
Factual accuracy & hallucination
Novel ML problem-solving
Research-level math problems
Hardest research math
Model & benchmark data from Epoch AI (CC BY); pricing, specs & descriptions from OpenRouter.