Last Thursday, OpenAI released GPT-4.5, a new version of its flagship large language model. With each release of its GPT models, OpenAI has shown that bigger means better. But there has been a lot of talk about how that approach is hitting a wall—including remarks from OpenAI’s former chief scientist Ilya Sutskever. In this edition of What’s Next in Tech, find out everything you need to know about OpenAI’s latest model.
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OpenAI says GPT-4.5 is its biggest and best chat model yet—but it could be the last release in the company’s classic LLM lineup.
Since the releases of its so-called reasoning models o1 and o3, OpenAI has been pushing two product lines. GPT-4.5 is part of the non-reasoning lineup—what Nick Ryder, a research scientist at the company, calls “an installment in the classic GPT series.”
All large language models pick up patterns across the billions of documents they are trained on. Smaller models learned syntax and basic facts. Bigger models can find more specific patterns like emotional cues, such as when a speaker’s words signal hostility, says Ryder: “All of these subtle patterns that come through a human conversation—those are the bits that these larger and larger models will pick up on.”
OpenAI won’t say exactly how big its new model is. But it claims the jump in scale from GPT-4o to GPT-4.5 is the same as the jump from GPT-3.5 to GPT-4o. Read the full story to learn more about how GPT-4.5 was trained, the benchmarks it has been tested on, and some of the model’s skills.
Article link: https://www.linkedin.com/pulse/openai-just-released-gpt-45-heres-what-you-need-tce0e?
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