openai/gpt-5.4-proGPT-5.4 Pro is OpenAI’s proprietary AI model, released Mar 5, 2026. It costs $30/M input and $180/M output tokens, and handles a 1.1M-token context window. Its strongest use case is math, where it ranks in the 97th percentile of the models Model Beat tracks.
GPT-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
GPT-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.
GPT-5.4 Pro is an AI model developed by OpenAI, part of the GPT family, released Mar 5, 2026.
GPT-5.4 Pro's list price from OpenAI is $30 per million input tokens and $180 per million output tokens.
GPT-5.4 Pro supports a context window of up to 1.1M tokens.
On standardized evaluations tracked by Epoch AI, GPT-5.4 Pro scores 94.6% on GPQA Diamond, 37.5% on FrontierMath Tier 4, 50.0% on FrontierMath.
GPT-5.4 Pro is a proprietary model (API access), available through its provider's API rather than as a downloadable open-weight model.
Benchmark data from Epoch AI (CC BY) and Artificial Analysis; pricing, specs & descriptions from OpenRouter. Data updated Jul 30, 2026.