Open Knowledge Maps vs ResearchHub (2026): which should you pick?
As of Nov 13, 2026, Open Knowledge Maps grades higher than ResearchHub: 3.0 against 2.0 out of 4.0.
Checked Nov 13, 2026 · graded Nov 13, 2026 by ToolGPA
Open Knowledge Maps grades higher on value for money, the free plan and ease of use. They get the same grade on features and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Open Knowledge Maps
Free visual maps of a research topic from open scholarly sources
ResearchHub
Open-science platform with paid peer review and research funding
Which one is for you
Pick Open Knowledge Maps if
- Fits if you are new to a field and want its themes before you read anything
- Works for librarians running a discovery workshop on open sources
Look elsewhere if
- Skip it if you need every relevant paper, as each map holds only the top 100 results
- Not for you if you want papers ranked by quality, because it groups by metadata and does not rank
- Too light for a full literature search, since it never reads full texts
- Watch out: each map takes about 30 seconds because every query runs live
Pick ResearchHub if
- Fits if you want to fund or crowdfund a research project in the open
- Works for reviewers who would take token payment for peer review
Look elsewhere if
- Skip it if you want to search or summarise papers, because that is not what it does
- Not for you if you would rather not deal with a cryptocurrency token, as rewards and bounties run on one
- Watch out: pricing could not be verified from the pages read
- Too light for a paper-reading workflow, as no reading or citation tools are listed
How we grade them
| 3.0GPAOpen Knowledge MapsVery good | 2.0GPAResearchHubFair | |
|---|---|---|
| Value for money | AFree outright, and the site shows no paid tier for individual users. Category tools start at $7.92 a month for the cheaper quarter. | CNo price on record: the pricing could not be verified from the pages read, so we leave it in the middle with no evidence either way. |
| Free plan and trial | AEvery map is free with no plan to move up to, and the site shows no cap a normal person would hit. | CThe listing says free but marks it unverified, and the home page shows sign-up and log-in with no plan details. |
| Features | CBuilds topic maps from BASE, PubMed and OpenAIRE records. It does that job fully, but it is a small job: the top 100 results only, metadata not full text. | CA funding marketplace, paid peer review and open publishing. It does not search, summarise or map the literature, so it covers a different part of the category. |
| Ease of use | BNo store rating on record, but you type a topic and wait about 30 seconds for the map. Nothing to set up. | CNo store rating on record and you need an account, plus a token for the rewards and bounties. |
| Platforms and integrations | CWeb only. BASE, PubMed, OpenAIRE and ORCID are where the records come from, and no API is listed. | CWeb only, with no apps, API or integrations listed. |
| Best for | a free visual map of an unfamiliar research topic | funding and peer-reviewing open science |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Open Knowledge Maps and ResearchHub. How we grade
Price against what you get
Open Knowledge Maps has no paid plan and scores 2.3 out of 4 on features, ease of use and platforms. ResearchHub has no paid plan and scores 2.0.
Open Knowledge Maps scores higher for the same starting price. Of the other AI research tools on the chart, none scores higher than Open Knowledge Maps for less, and none scores higher than ResearchHub for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Open Knowledge Maps also covers mind mapping.
- ResearchHub also covers documents.
At a glance
| Open Knowledge Maps | ResearchHub | |
|---|---|---|
| Pricing | Free | Free |
| Starts at | Free | Free |
| Free plan | None | None |
| Free trial | None listed | None listed |
| Web | ||
| Made by | Open Knowledge Maps | ResearchHub |
| Price read from | openknowledgemaps.org | Not confirmed |
| Checked | Nov 13, 2026 | Nov 13, 2026 |
Worth knowing
Open Knowledge Maps
- Each map uses only the top 100 results, so important papers can be missing from it.
- Maps take around 30 seconds to build, because each query is processed live.
- Grouping uses metadata, not full text, and it does not rank papers by quality.
ResearchHub
- Pricing could not be verified from the pages read.
- Rewards and bounties run on a cryptocurrency token.
Key features
Open Knowledge Maps
- Topic maps
- A search produces an interactive map of the top 100 results, grouped by topic similarity into labeled areas you can open.
- Open data sources
- Maps are built from BASE, PubMed and OpenAIRE records, with BASE covering more than 400 million outputs from over 11,000 sources.
- Open access emphasis
- Open access resources are highlighted, and most can be read inside the interface or are one click from the full text.
- Metadata-only grouping
- Clusters come from titles, abstracts, authors, journals and subject keywords, not from reading full texts; the site says it has no hallucinations.
- Custom services for organizations
- Institutions can embed Open Knowledge Maps' discovery tools in their own systems through a separate offering.
ResearchHub
- Funding marketplace
- Links funders with researchers through preregistration, open peer review, capital commitment and linked results.
- Paid peer review
- Reviewers are rewarded for reviews; the page cites under 10 days average turnaround.
- Open publishing
- Articles published openly with no paywall, through the RH Journal.
- ResearchCoin
- An ERC20 token used for bounties and rewards.
Plans
Open Knowledge Maps
Free$0
Create knowledge maps from the search page; the site shows no paid tier for individual users.
ResearchHub
Pricing could not be confirmed. See researchhub.com.
Common questions
Which is cheaper, Open Knowledge Maps or ResearchHub?
As of Nov 13, 2026, both Open Knowledge Maps and ResearchHub are free to use.
Which has a free plan, Open Knowledge Maps or ResearchHub?
As of Nov 13, 2026, both Open Knowledge Maps and ResearchHub have a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.