τ²-bench Leaderboard (Overall: Retail · Airline · Telecom)

τ²-bench Leaderboard (Overall: Retail · Airline · Telecom) is run by Sierra. It has ranked 8 models, of which the catalogue holds 7, scoring from 76.4 to 87.9 on Pass^1.

measured by Sierra · the board itself

Place	Model	Metric	Score
1stof 8	Qwen3.5 397B A17B	Pass^1	87.9
2ndof 8	Claude Opus 4.5	Pass^1	85.3
3rdof 8	GPT-5.2	Pass^1	84.8
4thof 8	Gemini 3 Flash Preview	Pass^1	83.5
5thof 8	gemini-3-pro-preview	Pass^1	82.5
6thof 8	GLM-5	Pass^1	81
7thof 8	Claude Sonnet 4.5	Pass^1	76.4

Place

Model

Metric

Score

1stof 8

Qwen3.5 397B A17B

Pass^1

87.9

2ndof 8

Claude Opus 4.5

Pass^1

85.3