GPT-5.4 is billed as "our most capable and efficient frontier model for professional work." ...
OpenAI has released GPT-5.4, a frontier model with improvements in reasoning, coding, and professional document creation.
GPT-5.4 is also more reliable, producing 18% fewer errors and 33% fewer false claims than GPT-5.2, according to OpenAI.
The GPT 5.4 model brings reasoning, coding, and agentic workflows into a single professional-level AI. It's now available ...
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