Released as Beta on August 28, 2026 under the Fair Source License (source-available on github.com/sapientinc/praxist), PRAXIST turns an already-runnable project with a measurable evaluator into a generational research campaign. Research Peers explore competing approaches in parallel; findings populate a lane-structured frontier; a PI Panel and Chair synthesize the next agenda so useful failures and mechanisms persist instead of a winner-takes-all discard. The tech report (arXiv:2608.25955) reports 49 gold medals on the full 75-task MLE-bench suite with deepseek-v4-pro.