Is τ³-Banking still meaningful?
Status:New / unproven Checked against the report, 5 November 2026
Verdict
Promising. The best agent scores 55.2%, but outside review is thin.
Why new / unproven: It appeared in March 2026 and has had little outside review.[1][1] τ-bench leaderboard Sierra Primary
What “New / unproven” meansKnown problems
- It is new in March 2026, with little outside review.[1][1] τ-bench leaderboard Sierra Primary
What to look at instead
The report names no direct successor.
Where it appears in the report
Chapter 1, Benchmarks
- Figure 4. Best score on benchmarks that still resist, November 2026
- Table 7. General and computer-use agent benchmarks, November 2026 in “Go deeper: General and computer-use agent benchmarks (18)”
Sources
Copied from the chapter source lists. Each number links back to the source in its chapter.
- [1] τ-bench leaderboard, Sierra. It gives τ²-bench, τ³-Banking and τ-Voice scores. Primary taubench.com Chapter 1, source 22