OpenAI says GPT-5.4's "individual claims are 33% less likely to be false and its full responses are 18% less likely to contain any errors, relative to GPT-5.2" (David Gewirtz/ZDNET)

David Gewirtz / ZDNET: OpenAI says GPT-5.4's “individual claims are 33% less likely to be false and its full responses are 18% less likely to contain any errors, relative to GPT-5.2” — ZDNET's key takeaways — GPT-5.4's 83% score suggests AI rivals expert professionals.