devwithjev
— reading now— views
Submit a build

Jev Dynamically Adjusts Claude’s Reasoning

Jev is a classifier that scores each move from 0 to 1 and shifts Claude Opus 5 among LOW, MEDIUM, and HIGH reasoning mid-run.

View on X cost$0.38
Bubo@bubosees𝕏
I GAVE CLAUDE A BRAIN THAT DECIDES HOW HARD TO THINK Not per session. Per step. Jev is a classifier that scores each move 0 to 1. Claude Opus 5 shifts between LOW, MEDIUM, and HIGH reasoning mid-run. Reading files. LOW. Twelve steps in a row. Then it cross-references modules. LOW to MEDIUM. Final analysis across 1,176 lines. MEDIUM to HIGH. 6 real bugs. 14 steps. $0.38. 160 lines of python, no framework, and one API beta you've never seen in a demo.
Sep 22, 2026X postsView on X
In a 14-step run, Claude’s final analysis covered 1,176 lines and found 6 real bugs. The implementation used 160 lines of Python, no framework, and an API beta.

Also filed under Triage & routing

  • How to Build Things with Jev & OpenJevs

    How to Build Things with Jev & OpenJevs In this video, we build a model router using both the API-based original Jev and also using Semif. ‍ Github: code will be up in ...

  • Jev is HERE. How to use it

    Jev is HERE. How to use it In this episode, I talk with Ryan Vogel about Jev, a new type of AI built for classification. Ryan shows how Jev takes an input plus ...

  • Jev-Shaped Classification Wrapper

    jevper is a Jev-shaped classification wrapper over OpenAI-compatible clients that returns probabilities and confidence.

  • Local Jev Protocol Multi-Upstream Router

    jev-switch is a local multi-upstream router for the Jev protocol with a Rust backend and React interface.