Until recently, everyone was convinced that if you wanted to communicate effectively with AI, you had to speak English. After all, models are trained on English data, most of the internet is in English, and “AI doesn’t understand Polish.”
Well, we have some news: it does. And quite well, actually.
A team from MIT and the University of Massachusetts Amherst conducted an extensive test they called OneRuler. It’s a set of tasks for language models (like GPT or Claude) that must process extremely long texts—ranging from 8,000 to even 128,000 tokens.
Imagine feeding an entire book into an AI and asking about one specific sentence in the middle. That is exactly what this test does.
The result? Polish—first place. English—sixth. Let’s repeat that: Polish outperformed English in tasks where AI must analyze and understand massive amounts of text.
No. This isn’t a competition for the world’s most poetic language. It is a test of precision—meaning how well the model can find, understand, and connect facts within a long text.
And in this category, Polish simply shines.
Polish has highly developed inflection—meaning a single word can convey a lot of information about meaning, relationships, and context. Thanks to this, the model receives more “clues” from the sentence structure itself. In other words, Polish forces AI to read more accurately between the lines. Perhaps it’s because our language is so flexible and rich in forms that the AI picks up more contextual signals. Or maybe models are getting better at handling languages that pack a lot of information “inside the sentence.”
Either way, it looks like AI is truly starting to understand Polish.
Interestingly, linguistic errors can really mess things up—AI understands the user less effectively and often misinterprets the meaning if grammatical mistakes are made. In practice, this means that proper Polish is not just a matter of style, but effectiveness. The cleaner we write, the better AI “reads” our content.
For us—the people involved in AI SEO—this is very good news. Because AI SEO is not just about writing texts “for a search engine.”
It’s about designing content and structures so that artificial intelligence knows exactly what we mean—and can interpret it correctly within its algorithms.
And since models understand Polish better, we can:
Polish is stopping being a barrier. It’s starting to be an asset.
Instead of fighting the language, use it to your advantage. Create longer, substantive texts—reports, case studies, analyses—because long-context models (those that “read” entire pages) gain their edge right there.
Test your prompts in Polish—seriously, they are sometimes more accurate than in English. And build content strategies with not only users in mind, but also how AI interprets your content.
We don’t know yet if Polish is the “best language for AI.” But we do know it’s capable of more than anyone expected.
And that’s great news. Because if artificial intelligence is truly starting to understand Polish, it means that AI SEO in Polish makes sense—and that we can finally play on our own home turf.
