Gradr.ai is the most precise tool for detecting AI-written text in English. Our algorithm ensures high precision while minimizing the risk of false accusations of cheating.
William Wordsworth was a nationalist poet and author who fought for English language and culture. He wanted to promote the use of English in writing and speech, and he worked to revitalize and modernize the English language. Wordsworth argued that English was a distinct language and that it was important for national self-esteem to have a literary language that could express English thoughts and feelings more authentically.
On the other hand, we had Samuel Taylor Coleridge, a historian and philologist who was also involved in the language debate. Coleridge was more conservative and believed that the English language was too young.
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Gradr.ai can identify text written with the latest AI models from ChatGPT, Claude, Gemini and others with up to 97.7% accuracy, based on our tests. It comes in two editions: Standard and Ultimate.
In our tests, Gradr.ai Ultimate flags only 0.4% and Standard only 0.5% of original texts as AI-written.
Efficiency
Gradr.ai Ultimate
97.77 %
Gradr.ai Standard
94.26 %
Pangram
89.3 %
False positives
Gradr.ai Ultimate
0.4 %
Gradr.ai Standard
0.5 %
Pangram
0.5 %
Gradr.ai detects text written entirely by AI, text where AI and human writing are mixed, and AI text that someone has tried to humanize. It works in English, Norwegian, Spanish, German, French, Danish and Swedish.
Photosynthesis is a process where plants, algae, and some types of bacteria capture light energy and store it as chemical energy. Water and carbon dioxide are absorbed and converted into carbohydrates, which are used and stored, and oxygen gas, some of which is used and some released into the air.
Almost all life depends on what is produced in photosynthesis. Photosynthesis is the most important life process on Earth because it forms energy-rich molecules that are important nutrients for all who do not themselves perform photosynthesis. These molecules are used both for the construction of cells and for processes inside the cells. At the same time, CO2 is absorbed from the atmosphere and converted into organic carbon in organisms. The oxygen released in photosynthesis is necessary for cellular respiration.
Gradr.ai checks the text against the internet, academic databases and closed sources. We find direct copying, but also text that has been pieced together from several sources or rewritten. Text with correct citations is marked, but kept separate from plagiarism.
Climate change refers to long-term shifts in temperatures and weather patterns on Earth. Since the 1800s, human activities have been the main driver of climate change, primarily due to the burning of fossil fuels.
These activities release large amounts of greenhouse gases such as carbon dioxide and methane, which trap heat in the atmosphere.
The consequences include rising sea levels, more extreme weather events, and loss of biodiversity. In addition, climate change affects societies and economies around the world, particularly in vulnerable areas where access to resources and infrastructure is limited. Global surface temperature has risen by about 1.1 °C compared to pre-industrial levels (IPCC, 2023).
Our digital guide helps you interpret the result and work out how best to double-check your suspicion, assess whether the student actually has the knowledge, and how to follow up with the student.
Gradr.ai finds factual errors, typos and contradictions in the text. You also get suggestions for better language and see incorrect use of technical terms and rhetorical devices.
Depleted uranium is uranium with reduced radioactivity. It is a byproduct from the enrichment of uranium to be used for nuclear weapons or nuclear power plants, and in depleted uranium, 3/4 of the isotope 235U has been removed. The radioactivity is thus reduced by approximately 40 percent compared to natural uranium.
In addition, all uranium daughters are removed in the enrichment process, meaning the 13 intermediate steps before the uranium ends up as lead. However, two of the intermediate products are quickly regenerated, so that the final radiation level is 10-20 percent of the original.
Almost all radiation from depleted uranium is alpha radiation. These are easily stopped but can be harmful to health if the substance enters the body.
There is an error in the claim that 3/4 of the isotope 235U is removed in depleted uranium. In reality, more than 99% of 235U is removed in depleted uranium.
Flex
Standard AI detection
50 000 words per month
50 texts
Suggestions for follow-up questions
Professional
Standard AI detection
1 200 000 words per month
120 longer texts
Advanced plagiarism detection
Suggestions for Follow-Up Questions
Automatic Fact Check
Automatic Language Check
AI analysis and text insights
Ultimate
Ultimate AI detection
1 500 000 words per month
150 longer texts
Everything from 'Professional'
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NO 931992449 MVA
Last updated: 31.10.2026
