"Open access" gets used as if it were a single thing. It is not. It is a family of routes that share one goal — making research free to read — but differ completely in who pays, what you are allowed to do with the article, and where the final version lives. Understanding the differences helps you choose the right route for your paper and avoid paying for something you did not need.
What "open access" actually means
Open access means the published article is free for anyone to read online, with no paywall or subscription. Most reputable open-access articles go further and carry a licence (usually Creative Commons) that also lets readers share and reuse the work with attribution. Crucially, open access is about distribution — it says nothing about quality. A well-run open-access journal peer-reviews every submission just as a subscription journal does.
The routes, side by side
| Route | Who pays | Where the article lives | Free to read? |
|---|---|---|---|
| Gold | Author / funder (often an APC) | The publisher's journal, final version | Yes, immediately |
| Diamond (or platinum) | No one — funded by an institution or society | The publisher's journal, final version | Yes, immediately |
| Green | No one | A repository (your institution's or a subject archive) | Yes, sometimes after an embargo |
| Hybrid | Author, on top of a subscription journal | A subscription journal | Only that one article |
Gold is the version most people picture: the final, formatted article is free on the journal's site from day one. Diamond is the same, except no one is charged an article processing charge because the journal is funded another way. Green means the journal itself may be paywalled, but you deposit your accepted manuscript in a repository so a free version exists. Hybrid — paying an open-access fee inside an otherwise subscription journal — is widely criticised as "double dipping" and is usually the least good value.
What does an APC actually pay for?
An article processing charge (APC) is the fee some gold journals charge to publish. It does not buy acceptance — a reputable journal will still reject a weak paper you paid to submit. The APC covers the work that happens around peer review: managing submissions and reviewers, editing and typesetting, registering a DOI with Crossref, long-term preservation, and hosting the article for free forever. If a journal promises publication for a fee without genuine peer review, that is not open access — it is a predatory journal.
Three myths worth dropping
- "Open access isn't peer reviewed." False. The review process is identical; only the paywall is gone.
- "I lose my copyright." False. Under a standard CC BY licence you keep copyright and grant reuse rights.
- "Paying an APC guarantees acceptance." False for any legitimate journal — and a red flag for any that implies otherwise.
Publishing open access affordably
If cost is a concern, you have options. Check whether your funder or institution has an agreement that covers APCs. Consider diamond or green routes. And if none of that applies, ask the publisher directly — many, including Directive Publications, offer waivers or discounts so that lack of funding does not keep sound research behind a wall. The point of open access is to remove barriers, not to move them from the reader to the author.