Tau2 Telecom
τ²-Bench telecom domain evaluates conversational agents in a dual-control environment modeled as a Dec-POMDP, where both agent and user use tools in shared telecommunications troubleshooting scenarios that test coordination and communication capabilities.
Claude Opus 4.6 from Anthropic currently leads the Tau2 Telecom leaderboard with a score of 0.993 across 30 evaluated AI models.
Claude Opus 4.6 leads with 99.3%, followed by 
LongCat-Flash-Thinking-2601 at 99.3% and 
GPT-5.4 at 98.9%.
Progress Over Time
Interactive timeline showing model performance evolution on Tau2 Telecom
Tau2 Telecom Leaderboard
| Context | Cost | License | ||||
|---|---|---|---|---|---|---|
| 1 | Anthropic | — | 1.0M | $5.00 / $25.00 | ||
| 1 | Meituan | 560B | — | — | ||
| 3 | OpenAI | — | 1.0M | $2.50 / $15.00 | ||
| 4 | OpenAI | — | 400K | $1.75 / $14.00 | ||
| 5 | Anthropic | — | — | — | ||
| 6 | OpenAI | — | 1.1M | $5.00 / $30.00 | ||
| 7 | Anthropic | — | 200K | $3.00 / $15.00 | ||
| 8 |  Xiaomi | 1.0T | — | — | ||
| 9 | OpenAI | — | — | — | ||
| 10 | OpenAI | — | 400K | $1.25 / $10.00 | ||
| 10 | OpenAI | — | 400K | $1.25 / $10.00 | ||
| 10 | OpenAI | — | 400K | $1.25 / $10.00 | ||
| 13 | OpenAI | — | 400K | $0.75 / $4.50 | ||
| 14 | OpenAI | — | 400K | $0.20 / $1.25 | ||
| 15 |  Meta | — | — | — | ||
| 16 |  MiniMax | 230B | 1.0M | $0.30 / $1.20 | ||
| 16 | MiniMax | 230B | 1.0M | $0.30 / $1.20 | ||
| 18 | Meituan | 560B | — | — | ||
| 19 | Anthropic | — | 200K | $1.00 / $5.00 | ||
| 20 | Meituan | 560B | 128K | $0.30 / $1.20 | ||
| 21 | Meituan | 69B | 256K | $0.10 / $0.40 | ||
| 22 |  Moonshot AI | 1.0T | — | — | ||
| 22 | Moonshot AI | 1.0T | — | — | ||
| 24 | 120B | — | — | |||
| 25 | OpenAI | — | — | — | ||
| 26 |  Alibaba Cloud / Qwen Team | 235B | — | — | ||
| 27 | Alibaba Cloud / Qwen Team | 80B | — | — | ||
| 28 | 32B | 262K | $0.06 / $0.24 | |||
| 29 | OpenAI | — | 128K | $2.50 / $10.00 | ||
| 30 | Alibaba Cloud / Qwen Team | 80B | — | — |
FAQ
Common questions about Tau2 Telecom.
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