| --- |
| language: |
| - zh |
| - en |
| license: cc-by-4.0 |
| task_categories: |
| - question-answering |
| - text-generation |
| - reinforcement-learning |
| pretty_name: LexBench-Browser |
| size_categories: |
| - n<1K |
| tags: |
| - browser-agent |
| - web-agent |
| - benchmark |
| - evaluation |
| - automation |
| --- |
| |
| # LexBench-Browser |
|
|
| LexBench-Browser is a public browser-agent dataset for evaluating agents on real-web workflows. |
| The v1.0 snapshot contains 210 no-login tasks across 107 distinct websites, with Chinese and |
| English instructions, task-level reference steps, key points, common mistakes, scoring rubrics, |
| and robustness tags. |
|
|
| Repository: https://github.com/lexmount/browseruse-agent-bench |
|
|
| Dataset page: https://huggingface.co/datasets/Lexmount/LexBench-Browser |
|
|
| Docs: https://docs.bubench.lexmount.io/ |
|
|
| Contact: [email protected] |
|
|
| ## Dataset Summary |
|
|
| LexBench-Browser is designed to support browser-agent engineering in browseruse-agent-bench: |
|
|
| - run an agent against real websites |
| - compare local and cloud browser backends |
| - evaluate task success with a declared judge strategy |
| - inspect trajectories and failure modes |
| - submit reproducible leaderboard results |
|
|
| The dataset does not require login for the v1.0 public snapshot. |
|
|
| ## Files |
|
|
| ```text |
| LexBench-Browser/ |
| |-- data_info.json |
| |-- task.jsonl |
| |-- task_global.jsonl |
| |-- task_lexmount.jsonl |
| `-- VERSION_HISTORY.md |
| ``` |
|
|
| Splits: |
|
|
| | Split | File | Tasks | Notes | |
| | --- | --- | ---: | --- | |
| | `All` | `task.jsonl` | 210 | Default public v1.0 split | |
| | `global` | `task_global.jsonl` | 92 | Global-region task subset | |
| | `lexmount` | `task_lexmount.jsonl` | 118 | Lexmount-region task subset | |
|
|
| ## Fields |
|
|
| Each JSONL row includes: |
|
|
| - `id`: stable task id |
| - `query`: user-facing browser task |
| - `task_type`: task type label |
| - `domain`: domain category |
| - `difficulty`: `easy`, `medium`, or `hard` |
| - `login_required`: whether login is required |
| - `risk_control`: whether the task has risk-control constraints |
| - `target_website`: intended website or website family |
| - `reasoning_type`: reasoning complexity label |
| - `language`: `zh` or `en` |
| - `website_region`: expected region/language context |
| - `reference_answer`: reference steps, key points, common mistakes, and scoring rubric |
| - `score_threshold`: pass threshold |
| - `robustness_tags`: practical browser-agent stressors |
|
|
| ## Label Distribution |
|
|
| Language: |
|
|
| | Language | Tasks | |
| | --- | ---: | |
| | `zh` | 137 | |
| | `en` | 73 | |
|
|
| Reasoning type: |
|
|
| | Reasoning type | Tasks | |
| | --- | ---: | |
| | `single_step` | 117 | |
| | `multi_step` | 70 | |
| | `deep_analysis` | 23 | |
|
|
| Domain: |
|
|
| | Domain | Tasks | |
| | --- | ---: | |
| | `finance_gaming` | 44 | |
| | `video_platform` | 42 | |
| | `tools_education` | 40 | |
| | `general` | 34 | |
| | `social_lifestyle` | 26 | |
| | `ecommerce` | 23 | |
| | `gaming` | 1 | |
|
|
| ## Robustness Tags |
|
|
| Tags cover: |
|
|
| - popup interference: `login_popup`, `cookie_consent`, `ad_overlay` |
| - sequence complexity: `long_sequence`, `deep_navigation`, `multi_site` |
| - content dynamics: `realtime_data`, `lazy_load_scroll`, `iframe_embed` |
| - anti-crawl behavior: `captcha_verification`, `anti_bot`, `rate_limiting` |
| - localization: `chinese_rendering`, `cross_language` |
| - complex interaction: `filter_sort`, `data_extraction` |
|
|
| ## Usage |
|
|
| ```bash |
| git clone https://github.com/lexmount/browseruse-agent-bench.git |
| cd browseruse-agent-bench |
| uv sync --extra browser-use |
| uv run bubench run --agent browser-use --data LexBench-Browser --mode first_n --count 3 |
| ``` |
|
|
| For official leaderboard submissions, follow the repository evaluation protocol and result |
| submission docs. |
|
|
| ## Licensing |
|
|
| The LexBench-Browser dataset metadata and task definitions are released under CC-BY 4.0. |
|
|
| This license covers the curated task records, labels, reference steps, scoring rubrics, and |
| metadata authored for the dataset. It does not relicense third-party website content, |
| screenshots, traces, marks, page text, or other artifacts collected while running agents. |
|
|
| Repository code is licensed separately under Apache-2.0. |
|
|
| ## Limitations |
|
|
| - Real websites change over time, so tasks may become easier, harder, or temporarily unavailable. |
| - Some websites may show region-specific content, anti-bot interstitials, cookie banners, or |
| localized layouts. |
| - The public v1.0 snapshot avoids login-required tasks. |
| - Automated judge results should be interpreted with the declared judge model, prompt strategy, |
| benchmark version, and browser backend. |
|
|
| ## Citation |
|
|
| Use the repository `CITATION.cff` for citation metadata. |
|
|
