Ian Nuttall

A developer shares a frustrating experience building a complex schema agent, finding that most models including Gemini, Claude, and open-source alternatives failed to perform consistently. The conclusion is a blunt recommendation to use GPT-5 variants for everything to avoid the hassle.

spent HOURS building a complex schema agent where most models like gemini, claude, and oss models failed to work consistently

my TLDR;

just use gpt-5-{x} for everything and save yourself the trouble.

<p>spent HOURS building a complex schema agent where most models like gemini, claude, and oss models failed to work consistently

my TLDR;

just use gpt-5-{x} for everything and save yourself the trouble.</p>