Languages · measured pair
English to Spanish
Translate English into Spanish on your own machine. After the language pack downloads once, nothing you translate is sent anywhere — there is no server to send it to.
How good is it, measured
COMET 84.6 for English → Spanish, over 200 sentences of the FLORES-200 test set, with the checks running — the recipe that ships. At that score it accurate, with wording you may want to tighten.
COMET is a standard automatic measure of translation quality, not a percentage of words correct; it is the number machine-translation research reports, which is why we report it rather than a figure of our own devising. We publish it for the 45 pairs we have actually run. A pair we have not measured gets no page and no number, because an interpolated score would be a guess presented as a fact.
Five real translations, unedited
These sentences come from FLORES-200, the public test set that translation research is measured on. They were chosen before anything was translated — the same five on every pair page — and each is shown exactly as Traxlate returned it on an RTX 3070, next to the translation a professional translator wrote for the same sentence.
A different word from the reference is not an error: two good translators rarely match word for word. What to look for is whether the meaning, the numbers and the names came through.
English — original
"We now have 4-month-old mice that are non-diabetic that used to be diabetic," he added.
Traxlate, on the device · 0.42 s
"Ahora tenemos ratones de 4 meses que no son diabéticos y que solían ser diabéticos", agregó.
Human reference translation
«Actualmente, tenemos ratones de cuatro meses de edad que antes solían ser diabéticos y que ya no lo son», agregó.
English — original
For instance, they didn't have corn, nor tomatoes, nor potatoes, nor cocoa, and no ancient Roman ever tasted a turkey.
Traxlate, on the device · 0.65 s
Por ejemplo, no tenían maíz, ni tomates, ni patatas, ni cacao, y ningún romano antiguo probó nunca un pavo.
Human reference translation
Verbigracia, no tenían maíz, ni tomates, ni patatas, ni cacao y ningún romano de la antigüedad degustó un pavo alguna vez.
English — original
Mass car ownership also leads to a higher incidence of accidents on the roads, which leads to the invention of new techniques in healthcare for repairing damaged bodies.
Traxlate, on the device · 0.77 s
La propiedad masiva de automóviles también conduce a una mayor incidencia de accidentes en las carreteras, lo que lleva a la invención de nuevas técnicas en la atención médica para reparar los cuerpos dañados.
Human reference translation
El uso masivo de automóviles también genera una mayor incidencia en los accidentes de tránsito, lo que conduce al desarrollo de nuevas técnicas en el campo de la salud para reparar los cuerpos dañados.
English — original
Severe weather is the generic term for any dangerous weather phenomenon with the potential to cause damage, serious social disruption, or loss of human life.
Traxlate, on the device · 0.81 s
El clima severo es el término genérico para cualquier fenómeno meteorológico peligroso con el potencial de causar daños, graves trastornos sociales o la pérdida de vidas humanas.
Human reference translation
El término clima severo refiere, en general, a cualquier fenómeno climático riesgoso que sea capaz de provocar daños, alteraciones sociales graves o la muerte de personas.
English — original
Majorcan cuisine, like that of similar zones in the Mediterranean, is based on bread, vegetables and meat (specially pork), and uses olive oil throughout.
Traxlate, on the device · 0.89 s
La cocina mallorquina, como la de zonas similares del Mediterráneo, se basa en el pan, las verduras y la carne (especialmente el cerdo), y utiliza el aceite de oliva en todo momento.
Human reference translation
La gastronomía de Mayorca, como la de otras regiones similares del Mediterráneo, se basa en el pan, los vegetales y la carne (especialmente la porcina), y utiliza aceite de oliva en todas sus recetas.
Sentences: FLORES-200 devtest, by Meta AI, licensed CC BY-SA 4.0. Translated 2026-09-24.
What you can translate
Why it stays on your device
The engine and the language pack are downloaded once and run locally. There is no English-to-Spanish API call behind this page: the server rung was removed in August 2026, so a hard sentence cannot quietly be sent away to be handled. That matters most for the documents people actually translate — contracts, medical letters, filings. The privacy model says exactly what does and does not leave, and the security page covers the rest.
What is checked before you see it
Each sentence is drafted, then checked for the failures that change meaning rather than style: a dropped negation, a changed number or amount, a name that went missing, a date that shifted. Where a check is not satisfied the sentence is redrafted. English and Spanish are covered by the language-specific tables built for 18 languages. The status line names the step it is on, and anything it could not settle is shown to you rather than hidden.
The other direction, and each language on its own
- Spanish to English — measured separately; the score differs by direction.
- English on Traxlate — script, voices, picture reading and what else is supported.
- Spanish on Traxlate — the same, for the target.