# τ²-bench (airline) — AI model rankings

task success in the airline domain of the second-generation customer-service evaluation

4 tracked models have a published τ²-bench (airline) score. Higher is better. Scores come from published lab reports and benchmark sources; recorded sources appear beside the scores.

## Ranking

| Rank | Model | Developer | Score | Source | Released |
| --- | --- | --- | --- | --- | --- |
| 1 | GPT-5.1 | OpenAI | 67% | Lab | Nov 12 2025 |
| 2 | GPT-5 | OpenAI | 62.6% | Lab | Aug 7 2025 |
| 3 | GPT-5 mini | OpenAI | 60% | Lab | Aug 7 2025 |
| 4 | GPT-5 nano | OpenAI | 41% | Lab | Aug 7 2025 |


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Canonical page: https://aireleasetracker.com/benchmark/tau2-airline
Site index: https://aireleasetracker.com/llms.txt
Source: AI Release Tracker (https://aireleasetracker.com). Most benchmark scores come from lab launch material; gathered results identify the leaderboard that published them.