| --- |
| license: cc-by-4.0 |
| task_categories: |
| - text-generation |
| - text2text-generation |
| language: |
| - en |
| tags: |
| - code |
| - agent |
| - swe-bench |
| - bug-fixing |
| - autonomous-agent |
| - benchmark |
| pretty_name: Daniel Benchmark v1 — Autonomous Agent Head-to-Head |
| size_categories: |
| - n<1K |
| --- |
| |
| # Daniel Benchmark v1 |
|
|
| A public head-to-head benchmark comparing **Daniel** (Cognitive AI) and **Devin** (Cognition AI) on 6 real bugs from widely used open-source libraries. |
|
|
| ## Key results |
|
|
| - **Pass rate:** Both agents 6/6 (100%) |
| - **Daniel cost:** $1.45 total ($0.24/bug) |
| - **Devin cost:** $4.91 total ($0.82/bug) |
| - **Daniel is 70% cheaper at equal accuracy** |
|
|
| All pull requests are public. Graded by each project's own hidden test suite — neither agent saw the tests. |
|
|
| ## Dataset fields |
|
|
| | Field | Type | Description | |
| |-------|------|-------------| |
| | `instance_id` | string | Unique identifier for the bug instance | |
| | `repo` | string | `owner/repo` on GitHub | |
| | `language` | string | Primary language of the repo | |
| | `issue_title` | string | The bug description given to both agents | |
| | `issue_url` | string | Original GitHub issue URL | |
| | `daniel_result` | string | `pass` or `fail` | |
| | `daniel_pr_url` | string | Link to Daniel's pull request | |
| | `daniel_time_s` | int | Seconds from start to PR opened | |
| | `daniel_cost_usd` | float | Claude API cost in USD | |
| | `devin_result` | string | `pass` or `fail` | |
| | `devin_time_s` | int | Seconds from start to PR opened | |
| | `devin_cost_usd` | float | Devin session cost in USD | |
| | `graded_by` | string | Always `maintainer_hidden_tests` | |
| | `benchmark_round` | int | Iteration number (Daniel ran 4 rounds; table uses best passing round) | |
|
|
| ## Repos tested |
|
|
| - `python-humanize/humanize` — Python |
| - `more-itertools/more-itertools` — Python |
| - `jshttp/mime-types` — JavaScript (Express ecosystem) |
| - `sindresorhus/pretty-bytes` — JavaScript |
| - `sindresorhus/camelcase` — JavaScript |
| - `pillarjs/path-to-regexp` — JavaScript (Express ecosystem) |
|
|
| ## Methodology |
|
|
| 1. Picked recent, real bug fixes from widely used libraries |
| 2. Forked each project at the commit just before the maintainers' own fix |
| 3. Gave both agents an identical issue-style prompt with no hints about the fix |
| 4. Graded each PR by overwriting test files with the maintainer versions and running the project's test command |
| 5. All PRs are public |
|
|
| ## See also |
|
|
| - 📊 [Live benchmark page](https://www.cognitivedaniel.com/devin-alternative) |
| - 🤖 [Daniel model card](https://huggingface.co/cognitivedaniel/daniel) |
| - 💻 [GitHub](https://github.com/2badagoldman/cognitive-daniel) |
|
|
| ## Upcoming: v2 (10-bug suite) |
|
|
| The next version will include 10 harder bugs from Django, FastAPI, SQLAlchemy, TypeScript, Next.js, Elasticsearch, Kubernetes, Spring Boot, Pandas, and Apache Airflow — testing multi-file and cross-language fixes. Competitors will include OpenHands and SWE-agent in addition to Devin. |
|
|
| ## Citation |
|
|
| ```bibtex |
| @misc{cognitive-ai-daniel-benchmark-2026, |
| title={Daniel Benchmark v1: Autonomous AI Agent Head-to-Head on Real Open-Source Bugs}, |
| author={Cognitive AI}, |
| year={2026}, |
| url={https://huggingface.co/datasets/cognitivedaniel/daniel-benchmark-v1} |
| } |
| ``` |
|
|
