Developers are absolutely loving the new GPT-5 (def not all tho, ha ha).
It’s elevating our software development capabilities to a whole new level.
Everything is getting so much more effortless now:
You’ll see how it built the website so easily from the extremely detailed prompt from start from finish:
On SWE-bench Verified, which tests real GitHub issues inside real repos, GPT-5 hits 74.9% — the highest score to date.
Some people seem to really hate GPT-5 tho…
“SO SLOW!”
“HORRIBLE!”:
Not too sure what slowness they’re talking about.
I was even thinking it was noticeably faster than prev models when I first tried it in ChatGPT. Maybe placebo?
On Aider Polyglot, which measures how well it edits code via diffs, it reaches 88%.
“BLOATED”.
“WASTES TOKENS”.
GPT-5 can chain tool calls, recover from errors, and follow contracts — so it can scaffold a service, run tests, fix failures, and explain what changed, all without collapsing mid-flow.
“CLUELESS”:
But for many others these higher benchmark scores aren’t just theoretical — it’s making real impact in real codebases from real developers.
“Significantly better”:
See how Jetbrains Junie assistant so easily used GPT-5 to make this:
“The best”
“Sonnet level”
It’s looking especially good for frontend development, especially designing beautiful UIs.
In OpenAI’s tests, devs preferred GPT-5 over o3 ~70% of the time for frontend tasks. You can hand it a one-line brief and get a polished React + Tailwind UI — complete with routing, state, and styling that looks like it came from a UI designer.
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