
Hi, I'm Weiran Yao
I'm Co-Founder & Chief AI Officer
at actAVA
I build multi-agent AI systems and train the frontier models underneath them.
I co-founded
actAVA and own its AI organization. actAVA is a workflow-to-model learning platform for healthcare: we give enterprises agentic sovereignty — the ability to build, test, and own their AI agents and models.
I lead post-training of Cura 1T, our trillion-parameter healthcare model, trained through a recursive self-improvement loop in which a training agent finds the model's capability gaps and closes them with SFT, RL, and self-distillation. Cura ranks at or near the top of frontier baselines on five of six healthcare evaluation panels while holding its out-of-domain reasoning.
I also lead χ-Bench, our benchmark for long-horizon, policy-rich clinical workflows, where the best frontier agent resolves only 28% of tasks. On the platform side I work on KORA, a model-independent harness for building, testing, and continually improving agents, and CHRYSO, which enforces AI governance against 85+ regulatory controls.
Previously at
Salesforce AI Research, I led the post-training team. We shipped xLAM, a family of state-of-the-art function-calling models, the synthetic data pipelines behind APIGen, APIGen-MT, and AgentOhana, and Retroformer, a generative critic model for self-reflection.
I also built agent systems there, including SlackAgents, AgentLite, CodeGenie, SWE Agents, and AIOps for cloud incident causation analysis.
I did my Ph.D. and M.S. in Machine Learning at
CMU, focusing on model interpretability, where I was advised by Dr. Kun Zhang.
CMU, focusing on model interpretability, where I was advised by Dr. Kun Zhang.
Featured Research Publications
Latest research for fans of AI Agent, RL and Interpretability.
Long-horizon, policy-rich healthcare workflows that frontier agents still cannot finish
arXiv
2026
Generative Critic Model Optimized for Self-Reflection and Reasoning Capabilities of AI Agents
ICLR
2024
Salesforce's In-House Library for Multi-Agent Orchestration and Reasoning
arXiv
2024
AI Software Engineer with 55% resolve rate on SWE-Bench Lite
ICLR
2025
Featured Engineering Projects
Innovative AI systems I've developed and deployed at scale.
Enhancing IDE Productivity through AI Code Planning, Editing, and Execution
Aug 2024 – Present
Featured Talks & Presentations
My favorite talks and presentations given at industry AI conferences and workshops.
Witness How xLAM and Multi-Agent Framework Revolutionize Automation with A Live Demo for Marketing Sales
Dreamforce
2024
Explore Power of Multi-Agent Reasoning with Software Engineering Agents of Diverse Strengths
CAMEL-AI Workshop
2024