BenchRank
#11 in AI Search & ResearchUpdated 2026-08

Corpus

by Corpus · Document analysis as a grid of documents and questions

BenchRank score

20.3 — BenchRank score out of 100

Screenshots of Corpus

Homepage · Corpus

Homepage of Corpus

Overview

Corpus builds matrices in which documents are rows and questions are columns, with AI-generated answers and citations in each cell. An agentic QA mode searches and reasons across document sections iteratively, showing its steps. Workflows draw on the matrix to produce reports, summaries or slide decks, and teams share a common workspace.

Best for
Teams asking the same questions across many documents — legal, compliance, research, due diligence
Pricing
The captured page shows no prices or plans of any kind.

Strengths and trade-offs

Strengths

  • Every matrix cell answer comes with citations
  • Agentic QA exposes each step of its reasoning
  • Workflows turn matrix answers into reports or slide decks
  • Shared workspaces keep team documents and matrices together

Trade-offs

  • No pricing shown anywhere on the captured page
  • Sign-in is offered only through Google
  • No stated detail on file formats, limits or data handling

Pricing

Published plans and prices from Corpus’s own pricing page.

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

  • MCP support

    Whether an agent can drive the product through the Model Context Protocol, and how much setup that takes.

  • API quality

    Public API surface: machine-readable spec, official SDKs, documented auth, errors, rate limits and versioning.

  • Documentation

    Publicly reachable docs — coverage, freshness, code samples and machine readability.

  • Agent friendliness

    How readable the site is to an automated client: llms.txt, structured data, server-rendered content, crawler access.

  • Changelog

    A public, dated record of what shipped and when — the clearest signal that a product is still alive.

  • Marketing site structure

    Whether the site answers a buyer's questions: clear positioning, the pages that matter, and accessibility.

  • Page speed

    How fast the site loads for real visitors: Chrome UX Report 75th-percentile LCP, INP and CLS, with a Lighthouse mobile run standing in where a site has too little traffic for field data.

  • Operational trust

    Status page and incident history, security disclosure, compliance and data-processing documentation.

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

  • Openness

    Source availability, self-hosting, data export and open standards. Scored and shown, but not part of the composite — paid SaaS is not worse for being paid SaaS.

  • Maintenance

    Release cadence and repository activity. Scored and shown, but not part of the composite — it is only measurable for open repositories.

This doesn’t look right — report a problem with Corpus’s score

Where this comes from

The Corpus pages BenchRank reads when it scores the product — its documentation, release notes, status and security pages, and its repository where there is one.

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