Researcher Profile

Editor reviewed

Julie Fadlon

Hybrid Transformer–Mamba language models (Jamba)

Head of human evaluation at AI21 Labs

An especially valuable page for understanding how AI systems get judged in practice, because it puts human evaluation and rubric design at the center rather than treating them as an afterthought to model building.

Organizations

AI21 Labs

Labs

AI21

Topics

Evaluation & Benchmarks Systems & Infrastructure Agents & Reasoning

About This Page

This profile is meant to help you get oriented quickly: why this researcher matters, what to read first, and where to explore next.

Last reviewed

March 18, 2026

Best First Clicks

Julie Fadlonprofile Modular Intelligence and Agent Orchestrationarticle Jamba: A Hybrid Transformer-Mamba Language Modelpaper

Known For

The ideas, systems, and research directions that make this person worth knowing.

Human evaluation at AI21 Labs

Evaluation design for modular and agentic systems

Operationalizing qualitative judgment for AI products

Hybrid Transformer–Mamba language models (Jamba)

Jamba: A Hybrid Transformer-Mamba Language Model

Jamba-1.5: Hybrid Transformer-Mamba Models at Scale

Start Here

Canonical papers, project pages, or repositories that anchor this profile.

Julie Fadlonprofile Modular Intelligence and Agent Orchestrationarticle Jamba: A Hybrid Transformer-Mamba Language Modelpaper Jamba-1.5: Hybrid Transformer-Mamba Models at Scalepaper

Supporting Sources

Additional links that help verify and flesh out this profile.

AI21 Labsprofile

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