GPT-5 is here. And we now have a Model Picker
With the GPT-5 announcement today, we’re excited to bring it into Augment. Starting today, and rolling out gradually to everyone, you can now choose between two models in Augment:
This is the first time we’ve run two models side by side in production. It follows weeks of controlled internal testing — the closest head-to-head we’ve ever seen.
We spent the past few weeks testing both models on the same set of coding tasks: single-file edits, multi-file refactors, test generation, and bug fixes across large repositories.
⚠️ Note: These tests used Claude Sonnet 4 with reasoning mode disabled. We’re planning a follow-up comparison with reasoning mode enabled, which may impact relative performance on multi-step or large-context tasks.
*Preference rate indicates how often users preferred one model’s output over the other when shown both responses to the same prompt and code state.
We’ve long said we wouldn’t ship a model picker — and for good reason. Our goal has always been to abstract away the complexity of LLMs and let users focus on getting work done, not choosing engines.
