Some builders say they’ve had largely optimistic experiences with GPT-5 up to now. Jenny Wang, an engineer, investor, and creator of the non-public styling agent Alta, advised WIRED the mannequin seems to be higher at finishing advanced coding duties in a single shot than different fashions. She in contrast it to OpenAI’s o3 and 4o, which she makes use of regularly for code era and easy fixes “like formatting, or if I need to create an API endpoint much like what I have already got,” Wang says.
In her assessments of GPT-5, Wang says she requested the mannequin to generate code for a press web page for her firm’s web site, together with particular design components that will match the remainder of the positioning’s aesthetic. GPT-5 accomplished the duty in a single take, whereas up to now, Wang would have needed to revise her prompts throughout the course of. There was one important error, although: “It hallucinated the URLs,” Wang says.
One other developer, who spoke on the situation of anonymity as a result of their employer didn’t authorize them to talk to the press, says GPT-5 excels at fixing deep technical issues.
The developer’s present pastime challenge is writing a programmatic community evaluation software, one that will require code isolation for safety functions. “I mainly offered my challenge and a few paths I used to be contemplating, and GPT-5 took all of it in and gave again just a few suggestions together with a practical timeline,” the developer explains. “I’m impressed.”
A handful of OpenAI’s enterprise companions and clients, together with Cursor, Windsurf, and Notion, have publicly vouched for GPT-5’s coding and reasoning abilities. (OpenAI included many of those remarks in its personal weblog submit saying the brand new mannequin). Notion additionally shared on X that it’s “quick, thorough, and handles advanced work 15 % higher than different fashions we’ve examined.”
However inside days of GPT-5’s launch, some builders have been weighing in on-line with complaints. Many mentioned that GPT-5’s coding skills appeared behind-the-curve for what was alleged to be a state-of-the-art, ultra-capable mannequin from the world’s buzziest AI firm.
“OpenAI’s GPT-5 is excellent, nevertheless it looks like one thing that will have been launched a 12 months in the past,” says Kieran Klassen, a developer who has been constructing an AI assistant for electronic mail inboxes. “Its coding capabilities remind me of Sonnet 3.5,” he provides, referring to an Anthropic mannequin that launched in June 2024.
Amir Salihefendić, founding father of the startup firm Doist, mentioned in a social media submit that he’s been utilizing GPT-5 in Cursor and has discovered it “fairly underwhelming” and that “it’s particularly unhealthy at coding.” He mentioned the discharge of GPT-4 felt like a “Llama 4 second,” referring to Meta’s AI mannequin, which had additionally upset some individuals within the AI neighborhood.
On X, developer Mckay Wrigley wrote that GPT-5 is a “phenomenal on a regular basis chat mannequin,” however in terms of coding, “I’ll nonetheless be utilizing Claude Code + Opus.”
Different builders describe GPT-5 as “exhaustive”—at occasions useful, however typically irritating in its long-windedness. Wang, who total was happy total with the frontend coding challenge she assigned to GPT-5, says that she did discover the mannequin was “extra redundant. It clearly may have provide you with a cleaner or shorter resolution.” (Kapoor factors out that the verbosity of GPT-5 may be adjusted, in order that customers can ask it to be much less chatty and even do much less reasoning in trade for higher efficiency or cheaper pricing.)
