Nexus puts open frontier models behind Claude Code, Cursor, Codex, and OpenCode, and routes each request to the most cost-effective path that can handle it. Setup takes one line of code. Your developers keep their tools and their flow.

In 30 minutes a forward-deployed engineer will walk your environment, show routing live, and give you a savings estimate against your current spend.

Open models can handle the vast majority of the work

Faros AI ran 211 engineering tasks across 12 production repositories. GLM-5.2 scored 0.568 against Opus 4.8's 0.521, ran 2.4× faster, and cost 48% less per task. On a separate agentic suite of roughly 1,030 tasks, K3 hit a 92.4% SWE solve rate against Fable's 92.6%. See what open models can do on the tasks day to day tasks your team executes.