tau2-bench (τ²-Bench)

A dated reading of what is claimed, reported, and independently verified in the current evidence.

Current reading

Readiness band and full integer triple

AI-assisted assembly · derived results

Readiness band

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Primary summary from verified readiness

Evidence strength Strong

Decision

Human editorial judgment · 2026-08-20

Adopt with guardrails

Why: It is the de-facto industry standard for conversational tool-agent eval and its pass^k/dual-control framing maps onto our shared-world agent risks, but headline numbers are domain-, simulator- and harness-sensitive and must not be quoted bare.
Next: Use τ²-Bench's dual-control + pass^k methodology as the template for our customer-facing agent reliability gates; report pass^k (not pass^1), segment by domain difficulty, and pin a fixed user-simulator + harness version rather than citing a single leaderboard figure.

Constraints

No named blocker is present in the current public projection.

Evidence summary

AI-assisted assembly

Counts and dates only. Raw signals, private excerpts, trust records, and internal corpus material are not published here.

Publication record

Initial public reading