---
title: "Yuval Belfer"
category: "people"
role: "Sr. Developer Advocate"
company: "AI21"
linkedin: "https://linkedin.com/in/yuval-belfer"
twitter: "https://x.com/yuvalinthedeep"
sourceLabels: ["Official speaker roster", "Official conference schedule"]
---
# Yuval Belfer

## Profile
Sr. Developer Advocate at [[ai21|AI21]].

- [LinkedIn](https://linkedin.com/in/yuval-belfer)
- [X / Twitter](https://x.com/yuvalinthedeep)

## Biography
Yuval is a Senior Developer Advocate at [[ai21|AI21]] Labs, where he helps engineers go from "it works in the demo" to "it works in production." He hosts the YAAP podcast (Yet Another AI Podcast) and teaches applied GenAI on various programs. His work spans RAG, fine-tuning, agents, and evaluation (or Yuval-uation, if you're nasty).

## Conference Sessions
- [[2026-06-29-yuval-belfer-stop-chunking-like-it-s-2022]] — Stop Chunking Like It's 2022 (2026-06-29, 3:20pm-3:40pm)
- [[2026-07-01-asaf-gardin-two-bugs-that-hid-in-plain-sight-a-vllm-debugging-detective-story]] — Two Bugs That Hid in Plain Sight: A vLLM Debugging Detective Story (2026-07-01, 3:20pm-3:40pm)

## Evidence Graph
This evidence graph summarizes how this person appears across the conference source graph: scheduled sessions, linked videos, transcripts, and slide-derived evidence.

### Linked Sessions
- [[2026-06-29-yuval-belfer-stop-chunking-like-it-s-2022|Stop Chunking Like It's 2022]]
- [[2026-07-01-asaf-gardin-two-bugs-that-hid-in-plain-sight-a-vllm-debugging-detective-story|Two Bugs That Hid in Plain Sight: A vLLM Debugging Detective Story]]

### Media Signals
- `youtube-Ywl4LsvHKzU` — 8 slide-derived text signals
- Slide-derived themes for `youtube-Ywl4LsvHKzU`: world, local, questions, name, answers, assuming, answer, lies.
- Evidence links for `youtube-Ywl4LsvHKzU`: [[youtube-Ywl4LsvHKzU]], [[youtube-Ywl4LsvHKzU-slides]], [[youtube-Ywl4LsvHKzU-dense-slides]], [[youtube-Ywl4LsvHKzU-reconstructed-slides]]