# Opus 5.5 almost lost to an open-source model...

**Published:** October 2, 2026
**Author:** David Ondrej
**Source:** YouTube — David Ondrej (AI Agents)
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/opus-5-5-almost-lost-to-an-open-source-model

Supabase just launched their own eval, and what's crazy is that Opus 5.5 almost lost to an open-source model. But, the point of this benchmark is not to find out which model is smartest. Instead, they drop each agent into a Supabase project and give it actual jobs. Build a…

> From the original source: **YouTube — David Ondrej (AI Agents)**
> [Read full article at YouTube — David Ondrej (AI Agents)](https://www.youtube.com/shorts/bEJuF9JltYE)

**Tags:** #Anthropic #Open Source AI #YouTube #Grok

---

*AI Qazaqstan — non-commercial informational portal about AI in Kazakhstan. Machine translations and summaries are AI-generated.*