news

releases, accepted papers, talks, organizing — most recent first.

Sep 04, 2026 Hyper-τ-Bench released — do agents have what it takes to build agents? The best developer agent ships 23.9%; an engineer’s hand-built reference reaches 82.2%. Open source, with a leaderboard that takes submissions by pull request.
Jul 13, 2026 Co-organizing the NeurIPS 2026 workshop on Grounded User Simulation for Model Evaluation and Training — Paris, December 12.
Jun 01, 2026 Joined Mercor as a founding member of the APEX research team — conversational agents in real organizations, and how they’re transforming work.
May 13, 2026 New blog post — τ-Knowledge: benchmarking agents on realistic knowledge. Frontier has moved from 25.5% → 37.4% Pass^1 since the March release, with ~63 pp of headroom still left. Includes a behavioral analysis of what separates the strong agents from the rest.
May 11, 2026 Three τ-Bench family papers accepted to ICML 2026 — including τ²-Bench as an oral (slides): τ²-Bench (dual-control evaluation), τ-Knowledge (knowledge retrieval), and τ-Voice (full-duplex voice agents). See you in July!
May 01, 2026 τ-Voice — first benchmark to measure full-duplex voice agents on realistic, grounded customer-service tasks. Voice agents have closed most of the gap to non-reasoning text models in ~8 months.
Apr 20, 2026 μ-Bench released — an open multilingual transcription benchmark covering 5 locales, 5 ASR providers, and 4,270 human-annotated utterances from real customer calls.
Mar 18, 2026 τ³-Bench released — extending τ-Bench with a knowledge-retrieval domain (τ-Knowledge), full-duplex voice evaluation (τ-Voice), and community-contributed task fixes. Live leaderboard at taubench.com.
Mar 02, 2026 Organizing and judging the Sierra τ²-Bench Custom Track of the AgentX–AgentBeats Competition (Berkeley RDI, Fall 2025 – Spring 2026).
Jun 10, 2025 τ²-Bench released — a benchmark for evaluating conversational agents in a dual-control environment, where both the agent and the user can take actions on the world.