How GPT‑5.6 earned its place in Primer
OpenAI just released GPT‑5.6. Before it could supersede the 'model in situ' at Primer, it had to beat it. Having tested 5.6 on real analyst work, we see a clear step up in quality from GPT‑5.5, and it comes at no extra cost. This is how we tested it, and what we found.






