[__0x01]

What LLM does Phoenix.new use?

[chrismccord]

claude 4 sonnet as the main driver atm, and a mix of smaller models depending on the scenario

[tptacek]

I'm building an agent right now (or rather, extending an agent I build a few weeks ago in a couple hours) and I would love to hear more about which scenarios get assigned to which models.

(I almost just asked you on company Slack but figured the answer would be more broadly interesting.)

[ethan_smith]

Based on the blog post, Phoenix.new uses Claude 3 Opus as its underlying model, which explains its strong performance with Elixir/Phoenix codebases.