OpenAI reveals GPT-4.5 amid flurry of new AI model releases

Roula Khalaf, Editor of the FT, curates Unlock the Editor’s Digest, featuring top stories like OpenAI’s launch of GPT-4.5, a large AI model with reduced hallucination rates. Amidst fierce competition in the AI industry, OpenAI continues to invest in large models despite potential cost challenges, and is considering limiting developer access to GPT-4.5 due to high operational expenses. Chief executive Sam Altman notes the model’s high cost to train and run, emphasizing its unique intelligence despite not focusing on reasoning capabilities.

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