Answers to the questions legal teams ask us most.

There’s no limit on the number of documents in a workspace. Bring the whole matter, not a sample.

Each document can hold up to 1 million characters (about 250,000 tokens). That covers most documents, including long contracts and transcripts. A document over the limit isn’t rejected. It’s held for review, and we work with you on how to handle it.

We recommend keeping individual files under 500 MB. If you have larger files, such as big archives or long recordings, we’ll help you split them before ingestion.

No. Add your whole team at no extra cost.

Yes. You decide which workspaces and which datasets each person can access. Each user sees only the matters and data you’ve given them, nothing else.

Yes. Give them access to just the workspace or dataset they need. They won’t see any other matters or data in your account.

Yes. We support Okta and other major identity providers. Let us know which one you use, and we’ll set it up together with your IT team.

No. You can use altumatimOS alongside your current review platform. Bring in supported exports, run AI review and investigation in altumatimOS, and send results back out in standard formats.

No. Your documents are never used to train our models or any third-party model.

Answers in altumatimOS are grounded in your documents and cite their sources. Click a citation to open the document behind it, so you can check the AI’s work instead of taking it on trust.

Before a full run, your team reviews a control set: a sample of documents where you agree or disagree with the AI’s calls. altumatimOS measures performance against your decisions using precision, recall and F1. You can refine the criteria and re-test until the results meet your standard, then run the full set.

The control-set workflow supports a documented, measurable validation process: who reviewed what, the criteria used, and the resulting metrics. Your team validates the review against its own decisions and requirements.

Yes. Your attorneys set the criteria, validate the control set and make the final calls. altumatimOS does the first-pass review across the full set, so people spend their time on judgment, not volume.

Email, Office documents, PDFs, images, spreadsheets, archives, and more. Audio and video transcription is available on request. See the full, searchable list on our Supported Data Types page.

Upload directly in the browser, transfer large collections by SFTP, or connect Google Drive or Dropbox.

Yes. We accept standard loadfiles (DAT/OPT), Relativity exports, and our own CSV format. Loadfiles are treated as final, so your existing text, images and metadata come through as they are. Contact us to confirm exports from other platforms.

Yes. Emails and their attachments stay linked as families throughout review and export.

Yes. altumatimOS can translate documents so your team can review them in English. Contact us to confirm support for the languages in your collection.

Yes. Recordings can be transcribed on request when they’re ingested, so their content is searchable and reviewable like any other document. Contact us about supported formats and recording lengths.

You’ll see it in a failure log for your workspace, so nothing goes missing silently. We’ll work with you to recover or reprocess it.

Yes. Export original documents, productions (DAT/OPT loadfiles with text, images and natives), privilege logs, and results for issue, privilege and confidentiality review as CSV. Your data is never locked in.

Contact our team to discuss your requirements and request a quote.

Book a demo for a live walkthrough of altumatimOS and time for questions with our team.

Contact our team to confirm compatibility with your browser, version, and device before getting started.