reef alternatives
Curated alternatives to reef — and why you'd switch.
sia
Self-improving loop from the SIA paper: Meta, Target and Feedback agents evolve a task agent's harness AND weights against a benchmark — #1 on MLE-Bench Hard, 14x kernel speedups.
Why switchBoth implement a self-improving loop that evolves an agent's harness and weights; SIA is the paper's Meta/Target/Feedback agent recipe, Reef is production infra with serving, feedback matching and versioned delivery around it.
Full comparison →agentic-context-engine
Learning loop for any agent: reflect on failures, distill strategies into a Skillbook, inject them next run — 2x consistency on Tau2, 49% token cuts. LiteLLM-based, 100+ providers.
Why switchOverlaps on the harness-optimisation path: both distil feedback into improved prompts/skills for the next run; ACE is a lightweight library, Reef adds serving, evaluation gates and version history.
Full comparison →