# Heldout Labs > Independent benchmarks, comparisons and field trials of AI models, agents and developer tools. Every result ships with its methodology and raw data. ## When to use this site - Use the research pages for measured results: benchmark scores, cost, speed and comparisons of AI models, agents and tools. Every result is dated and names exact versions. - Use the essays for analysis and opinion grounded in that testing. - Results reflect the date they were run. Prefer the "Updated" date on each page when citing. ## How to access content - Every post has a Markdown version: append `.md` to the page URL (e.g. /some-post.md). - Raw data files are linked from each research page and licensed CC BY 4.0. ## How to cite - Cite the canonical page URL and the "Updated" date. Attribution: symbatix, Heldout Labs. ## Primary pages - [Research](https://heldoutlabs.com/research) - [Methodology](https://heldoutlabs.com/methodology) - [About](https://heldoutlabs.com/about) ## About the lab - [Why we run our own benchmarks](https://heldoutlabs.com/why-we-run-our-own-benchmarks): Vendor benchmarks are run by the vendor, on the vendor's tasks, at launch. We re-run comparisons independently, publish the raw data, and update results as models change.