Gradr.ai is the most precise tool for checking if text is written by artificial intelligence in English. Our algorithm balances minimal false accusations of cheating with the highest possible precision.
Academically grounded technology - Developed with support from:
Gradr.ai can detect text generated with leading AI tools such as ChatGPT, Claude and Gemini with a success rate of 99.5% at correctly recognizing original texts and 60-70% at recognizing AI-generated text. The tool has a very low rate of false positives (0.5%). Gradr.ai prioritizes minimizing false positives first and then having the highest possible precision.
Original texts checked with Gradr.ai
99.5% Recognized as original
0.5% Incorrectly recognized as AI
Gradr.ai puts privacy first and follows English and European privacy laws. We comply with GDPR and have security measures to ensure that all data handled is protected and confidential. All users of Gradr.ai can enter into data processing agreements with us that establish how we process the data entered into the service.
Check text
Original
Text analysis
AI detected
Follow upOur AI detector is specially trained on linguistic nuances across multiple languages. We catch everything from 100% AI-generated content to texts that have been 'washed' through Humanizer tools. Whether the text is in English, Norwegian or German, Gradr.ai gives you the answer.
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 delivers a comprehensive plagiarism checker that scans the internet, academic databases and closed sources. We identify not only direct copying, but also 'patchwork plagiarism' and sophisticated paraphrasing that traditional tools often miss.
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.
If you discover suspicion of cheating with artificial intelligence, we help you with the way forward. Get processes and tips from other teachers on how to responsibly confirm suspicion, follow up with the student, and which measures work.
Gradr.ai helps you identify factual errors based on sources, language errors, internal contradictions in the text, how the language in the text could be improved, 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.
Save time and avoid uncertainty with one of the plans from Gradr.ai. Regardless of which plan you try, there is no commitment period and you have a 30-day right of withdrawal after the first payment.
Flex
50 000 words per month
50 texts
AI detection
Suggestions for follow-up questions
Professional
1 200 000 words per month
120 longer texts
AI detection
Advanced plagiarism detection
Suggestions for Follow-Up Questions
Automatic Fact Check
Automatic Language Check
AI analysis and text insights
Schools
Everything from 'Professional'
Data Processing Agreement (DPA)
Free trial period
Minimum 5 users
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Gradr.ai - Tribble AS
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0172 Oslo
NO 931992449 MVA
Last updated: 18.03.2026