“It’s a lemon”—OpenAI’s largest AI model ever arrives to mixed reviews

Ars Technica
By Benj EdwardsFeb 28, 2025, 11:35 am135 pts
The verdict is in: OpenAI's newest and most capable traditional AI model, GPT-4.5, is big, expensive, and slow, providing marginally better performance than GPT-4o at 30x the cost for input and 15x the cost for output. The new model seems to prove that longstanding rumors of diminishing returns in training…

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