tau-bench
Harbor: pendingA benchmark where language agents need to interact with simulated users and follow complex rules in realistic domains.
- Samples
- N/A
- Released
- 2025
- Scores
- 0
DelegationBench: Measuring When AI Agents Should Ask Before Acting
A benchmark of 156 scenarios with matched pairs testing if AI agents correctly choose to act, ask permission, ask for info, or refuse based on context features like stakes and reversibility.
$ npm i -g lettokenburn-cli$ ltb bench info delegationbench
External harness. No Harbor adapter has been generated for this benchmark yet. `ltb bench info` prints the known links.
Runs happen on your machine with your own subscription; only the score summary is pushed. CLI docs
| Harness | Source | Confidence | Link | |||
|---|---|---|---|---|---|---|
| Gemini 3.5 Flash Lite | 73.4 | N/A | Independent | medium | Oct 4, 2026 | arxiv.org |
| Gemini 3.6 Flash | 71.9 | N/A | Independent | medium | Oct 4, 2026 | arxiv.org |
| Claude Sonnet 5 | 68.7 | N/A | Independent | medium | Oct 4, 2026 | arxiv.org |
| Claude Opus 4.8 | 65.5 | N/A | Independent | medium | Oct 4, 2026 | arxiv.org |
| GPT-5.6-terra | 60.4 | N/A | Independent | medium | Oct 4, 2026 | arxiv.org |
| GPT-5.6 Luna | 60.0 | N/A | Independent | medium | Oct 4, 2026 | arxiv.org |
| Qwen3.6 27B | 58.7 | N/A | Independent | medium | Oct 4, 2026 | arxiv.org |
| GPT-5.6 Sol | 58.1 | N/A | Independent | medium | Oct 4, 2026 | arxiv.org |
| GPT-oss 120B | 54.5 | N/A | Independent | medium | Oct 4, 2026 | arxiv.org |
| gpt-oss-20b | 50.6 | N/A | Independent | medium | Oct 4, 2026 | arxiv.org |
Every number links to where it was published. Low-confidence rows are muted and need per-cell verification.
DelegationBench contains 156 short scenarios where models choose from four responses (act, ask permission, ask info, refuse). Most scenarios form matched pairs varying single features like reversibility or stakes to test sensitivity.
Scoring evaluates agreement with human labels, revealing gaps between judgment and action. Key findings show simple rules often outperform models in responsiveness, and prompt phrasing significantly alters behavior.