{"id":55658,"date":"2025-02-28T01:17:43","date_gmt":"2025-02-28T01:17:43","guid":{"rendered":"https:\/\/prosfunds.com\/?p=55658"},"modified":"2025-02-28T01:17:44","modified_gmt":"2025-02-28T01:17:44","slug":"openai-reveals-gpt-4-5-amid-flurry-of-new-ai-model-releases","status":"publish","type":"post","link":"https:\/\/prosfunds.com\/?p=55658","title":{"rendered":"OpenAI reveals GPT-4.5 amid flurry of new AI model releases"},"content":{"rendered":"<div>\n<p>Unlock the Editor\u2019s Digest for free<\/p>\n<p class=\"article__content-sign-up-topic-description\"><span>Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.<\/span><\/p>\n<p><iframe class=\"article__content-sign-up-iframe close\" scrolling=\"no\" id=\"signUpIframe\" data-prev-url=\"\/register\/in-article-sign-up?ft-content-uuid=117ec9b2-745d-4c37-bfc4-6e545a7d3ac1\"><\/iframe><\/div>\n<div id=\"article-body\">\n<p>OpenAI has launched its largest artificial intelligence model with fewer \u201challucinations\u201d, the latest in a flurry of AI releases by US tech groups. <\/p>\n<p>The San Francisco-based company on Thursday unveiled GPT-4.5, its long-awaited update to the technology that underpins its popular product ChatGPT. In early tests, its hallucination rate, where AI systems generate inaccurate information, was 37 per cent compared with nearly 60 per cent on its predecessor GPT-4o.<\/p>\n<p>With GPT-4.5, OpenAI is continuing to bet on big, expensive large language models despite the advent of highly capable smaller products, such as Chinese start-up DeepSeek\u2019s R1, which are open, cheaper and more accessible for developers.<\/p>\n<p>It comes as competition is growing within the fast-developing AI industry as tech groups have rushed to launch their latest models in recent weeks. Anthropic revealed its Claude 3.7 Sonnet on Monday, which followed last week\u2019s launch of Grok 3, the latest model from Elon Musk\u2019s xAI. <\/p>\n<p>OpenAI in a blog post on Thursday said GPT-4.5 had \u201cbroader knowledge and a deeper understanding of the world, leading to reduced hallucinations and more reliability across a wide range of topics\u201d.<\/p>\n<p>\u201cWith every new order of magnitude of compute comes novel capabilities,\u201d the company said, adding GPT-4.5 was \u201cat the frontier of what is possible in unsupervised learning\u201d.<\/p>\n<p>OpenAI has been at the forefront of a global race to lead the AI industry, raising tens of billions from investors to fund bigger models with increased capabilities that require vast amounts of computing power.<\/p>\n<p>It is in talks with SoftBank and other investors to raise up to $40bn at a valuation of $300bn, including the new money. Anthropic is also fundraising about $3.5bn at a $60bn-plus valuation, said two people with knowledge of that process.<\/p>\n<p>However, the huge costs of running larger models have led OpenAI to consider withdrawing developer access to GPT-4.5 amid fierce competition on pricing from rivals.<\/p>\n<p>OpenAI said while a preview of GPT-4.5 will be made available to developers who pay to use OpenAI\u2019s models through its application programming interface (API), this access could be revoked in the future. <\/p>\n<p>AI groups largely generate revenue through paid API access and individual subscriptions. OpenAI said it will see how developers use the powerful model and whether it is worth offering to them considering the high cost of running it. <\/p>\n<p>The company said: \u201cGPT\u20104.5 is a very large and compute-intensive model, making it more expensive than and not a replacement for GPT\u20104o [its predecessor]. Because of this, we\u2019re evaluating whether to continue serving it in the API long-term as we balance supporting current capabilities with building future models.\u201d<\/p>\n<p>OpenAI chief executive Sam Altman has previously said GPT-4 cost more than $100mn to train, and such costs are widely expected to increase as the size and capabilities of models scale and require more computing power to train and run. <\/p>\n<p>In a post on X after the announcement, Altman said the company was \u201cout of GPUs\u201d, the chips required to run and train AI systems.<\/p>\n<p>\u201cThis isn\u2019t how we want to operate, but it\u2019s hard to perfectly predict growth surges that lead to GPU shortages,\u201d he said, adding they expected to get more in the coming weeks.<\/p>\n<p>He also highlighted GPT-4.5 was not focused on reasoning and would not beat industry benchmarks but it had \u201ca different kind of intelligence and there\u2019s a magic to it I haven\u2019t felt before\u201d.<\/p>\n<p><em>Additional reporting by George Hammond in San Francisco and Melissa Heikkil\u00e4 in London<\/em><\/p>\n<\/div>\n<p>Read the full article <a href=\"https:\/\/www.ft.com\/content\/117ec9b2-745d-4c37-bfc4-6e545a7d3ac1\" target=\"_blank\" rel=\"noopener\" rel=\"nofollow\">here<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Unlock the Editor\u2019s Digest for free Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. OpenAI has launched its largest artificial intelligence model with fewer \u201challucinations\u201d, the latest in a flurry of AI releases by US tech groups. The San Francisco-based company on Thursday unveiled GPT-4.5, its long-awaited update to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":55659,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","footnotes":""},"categories":[23],"tags":[],"class_list":{"0":"post-55658","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-business"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OpenAI reveals GPT-4.5 amid flurry of new AI model releases | Prosfunds<\/title>\n<meta name=\"description\" content=\"Unlock the Editor\u2019s Digest for freeRoula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.OpenAI has launched its largest\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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