OpenAI has launched its GPT-5 artificial intelligence model, the highly anticipated latest instalment of a technology that has helped transform global business and culture.
OpenAI’s GPT models are the AI technology that powers the popular ChatGPT chatbot, and GPT-5 will be available to all 700 million ChatGPT users, OpenAI said.
The big question is whether the company that kicked off the generative AI frenzy will be capable of continuing to drive significant technological advancements that attract enterprise-level users to justify the enormous sums of money it is investing to fuel these developments.
The release comes at a critical time for the AI industry. The world’s biggest AI developers — Google, Meta, Amazon and Microsoft, which backs OpenAI — have dramatically increased capital spending to pay for AI data centres, nourishing investor hopes for great returns. These four companies expect to spend nearly US$400-billion this fiscal year in total.
OpenAI is now in early discussions to allow employees to cash out at a $500-billion valuation, a huge step up from its current $300-billion valuation. Top AI researchers now command $100-million signing bonuses.
“So far, business spending on AI has been pretty weak, while consumer spending on AI has been fairly robust because people love to chat with ChatGPT,” said economics writer Noah Smith. “But the consumer spending on AI just isn’t going to be nearly enough to justify all the money that is being spent on AI data centres.”
Enteprise prowess
OpenAI is emphasising GPT-5’s enterprise prowess. In addition to software development, the company said GPT-5 excels in writing, health-related queries and finance.
“GPT-5 is really the first time that I think one of our mainline models has felt like you can ask a legitimate expert, a PhD-level expert, anything,” OpenAI CEO Sam Altman said at a press briefing. “One of the coolest things it can do is write you good instantaneous software. This idea of software on demand is going to be one of the defining features of the GPT-5 era.”
In demos on Thursday, OpenAI showed how GPT-5 could be used to create entire working pieces of software based on written text prompts, commonly known as “vibe coding”.
Read: Vibe coding craze faces security wake-up call
One key measure of success is whether the step up from GPT-4 to GPT-5 is on par with the research lab’s previous improvements. Two early reviewers said that although the new model impressed them with its ability to code and solve science and maths problems, they believe the leap from the GPT-4 to GPT-5 was not as large as OpenAI’s prior improvements.
Even if the improvements are large, GPT-5 is not advanced enough to wholesale replace humans. Altman said that GPT-5 still lacks the ability to learn on its own, a key component to enabling AI to match human abilities.
On his popular AI podcast, Dwarkesh Patel compared current AI to teaching a child to play a saxophone by reading notes from the last student.
“A student takes one attempt,” he said. “The moment they make a mistake, you send them away and write detailed instructions about what went wrong. The next student reads your notes and tries to play Charlie Parker cold. When they fail, you refine the instructions for the next student. This just wouldn’t work.”
Nearly three years ago, ChatGPT introduced the world to generative AI, dazzling users with its ability to write humanlike prose and poetry, quickly becoming one of the fastest growing apps ever.
In March 2023, OpenAI followed up ChatGPT with the release of GPT-4, a large language model that made huge leaps forward in intelligence. While GPT-3.5, an earlier version, received a bar exam score in the bottom 10%, GPT-4 passed the simulated bar exam in the top 10%.
GPT-4’s leap was based on more compute power and data, and the company was hoping that “scaling up” in a similar way would consistently lead to improved AI models.
But OpenAI ran into issues scaling up. One problem was the data wall the company ran into, and OpenAI’s former chief scientist Ilya Sutskever said last year that while processing power was growing, the amount of data was not.
He was referring to the fact that large language models are trained on massive datasets that scrape the entire internet, and AI labs have no other options for large troves of human-generated textual data.
‘Test-time compute’
Apart from the lack of data, another problem was that “training runs” for large models are more likely to have hardware-induced failures given how complicated the system is, and researchers may not know the eventual performance of the models until the end of the run, which can take months.
At the same time, OpenAI discovered another route to smarter AI, called “test-time compute”, a way to have the AI model spend more time compute power “thinking” about each question, allowing it to solve challenging tasks such as maths or complex operations that demand advanced reasoning and decision-making.
Read: Tim Cook says Apple ready to open its wallet to catch up in AI
GPT-5 acts as a router, meaning if a user asks GPT-5 a particularly hard problem, it will use test-time compute to answer the question. This is the first time the general public will have access to OpenAI’s test-time compute technology, something that Altman said is important to the company’s mission to build AI that benefits all of humanity.
Altman believes the current investment in AI is still inadequate. “We need to build a lot more infrastructure globally to have AI locally available in all these markets,” Altman said. — Anna Tong, with Deborah Sophia, (c) 2025 Reuters
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