Datasets:

yanou16
/

cefr-dataset

text stringlengths 17 702	level stringclasses 6 values	domain stringclasses 10 values	label class label 6 classes
Dear sir, I want to ask you about the job. I send you my CV because I am interesed.	A2	formal email	1A2
Though historically overlooked, recent reinterpretation of seventeenth-century botanical treatises suggests early naturalists employed surprisingly rigorous scientific methods. Their meticulous illustrations and painstakingly detailed descriptions, while aesthetically impressive, were crucial for systematic taxonomic c...	C1	academic paragraph	4C1
The government's latest decision to increase taxes has sparked alot of controversy, with many citzens feeling that they are being unfairly burdened, however, some economist argue that this is a nesessary measure to stimulate economic growth	C1	news commentary	4C1
Can't believe it's already Friday. Did this week pass in a blink or am I just dreaming? 😴 Anyone else feel like their ambition got its spring cleaning done already and is officially retired for the season? ⌛☀️	C2	social media post	5C2
I have one brother and two sister.	A1	social media post	0A1
Thank you for email. I am Juan and new here. My number is 0600000000. Please send more information in English and simple words. Sincerely, Juan	A1	formal email	0A1
I go home now. I am tired. I watch tv so I relax.	A2	informal chat message	1A2
I go to beach yesterday. I swim and sunbath. It was nice but water was cold.	A2	travel diary entry	1A2
Totally agree about that! It's not just about knowing the rules, is it? More often than not, the best advice you get comes from people who've actually been in the thick of it, not from some theory text, you know what I mean? Like the tips about moving house – genius stuff!	C1	casual forum reply	4C1
The Sleepia DreamWeaver™ Pillow is an ergonomic marvel! It cradles your weary head in a cool, dense memory foam that adapts flawlessly to one’s unique sleeping style. The removable, silky-soft bamboo cover not only adds a touch of luxury but also promotes a naturally cooler sleep environment. If the stiff neck and chro...	C2	product review	5C2
I am writing to express interest in the open marketing coordinator position at your company. My four years of experience in marketing, combined with strong project management skills, make me confident I would be a valuable asset to your team. Should my qualifications align with your needs, I welcome the chance to furth...	B2	job application paragraph	3B2
I am student. I like blue. I write to you and say hello	A1	formal email	0A1
I bought the smartphone last month. It's easy to use, but the screen is not so good. Sometimes the pictures are blurry. The battery also is not long lasting. I like how it looks and the size is good for my hands, but maybe the quality could be better.	B1	product review	2B1
hello! I new here. Where you live? Like games and fun! You too?	A1	casual forum reply	0A1
News channel say storm. Big wind today and rain. Street wet and car stop. People inside house. Very cold outside.	A1	news commentary	0A1
I write email because I want job. I have experience but I no have certificate. I send CV so you can see.	A2	formal email	1A2
With years of dynamic experience in digital marketing and a genuine enthusiasm for innovative branding, I am eager to leverage my unique skill set to contribute to your company's upward trajectory. My proficiency in advanced analytical tools, combined with a meticulous eye for detail and an unyielding commitment to sur...	C2	job application paragraph	5C2
Hey friends! Had a nice weekend, went to the park with some friends. We eat some pizza, it was delicious but not healthy haha. Going to gym now, what are you doing? Don't forget to like and sub my page if you want more fun posts! 😁	B1	social media post	2B1
I try this new restaurant and it's really nice. The food is delicious and the prices are not too high. The service is good but the waiters are sometimes slow.	B1	product review	2B1
An artist's block is not just an empty canvas, but a cage forged of doubt. It's the deafening silence when your muse deserts you, leaving only the oppressive weight of expectation. I’ve wrestled with it, the feeling of creative bankruptcy after a burst of inspiration. It’s tempting to blame external factors— deadlines,...	C1	short personal essay	4C1
Tech support hotlines: 20 minutes of 80's elevator music followed by someone who definitely didn't write the software. Why do we put up with this torture chamber? ⏰😵‍💫	C2	social media post	5C2
I dont like this food. It is bad because it is cold. I like hot food so I dont eat it.	A2	product review	1A2
I like you email. I go to school because I want learn. I no have time but I write you	A2	formal email	1A2
I like this film but it is not good. The actor is nice so I watch it again.	A2	casual forum reply	1A2
I am writing to expres my gratitude for the oppotunity to work with your esteemed company, and I look forward to the prospect of a fruitful collaboration in the near future, although I have some reservations regarding the time frame, which I beleive needs to be ajusted	C1	formal email	4C1
I have dog and cat	A1	casual forum reply	0A1
I like blue phone. Phone is good and cheap.	A1	product review	0A1
I am Marta from Lisbon. I am twenty. My family is four people. I like walk in park and sunny day. My friend's name is Mario. We play football and eat ice cream.	A1	short personal essay	0A1
hii! how r u? im new here. my name james. you are nice. i live london and i have sister	A1	informal chat message	0A1
dog is black. cat and dog play in park. sun is red. people go to beach with dog.	A1	news commentary	0A1
The emerging technologies of artificial intelligence (AI) promise to reshape various sectors, from healthcare to finance. However, these developments also raise profound ethical questions about data privacy and algorithmic bias. Effective regulation will be necessary to ensure the responsible implementation of AI syste...	B2	academic paragraph	3B2
If the company would have invested more in marketing, they will probably have more customers by now, however, their financial situation doesn't allow it, so they have to be careful with their expenses	B2	formal email	3B2
Local officials are saying the park will now open earlier in spring. They say because the weather has been good. Before, it opened later, but now people want to use it sooner. It's important for the community to have places like this.	B1	news commentary	2B1
If I'm being brutally honest, that last post seemed like a bit of a reach, you know? Trying to boil down centuries of socio-economic shifts into a single meme? It just... didn't quite land for me, and I think most would agree it oversimplifies things considerably. Still, respect the hustle though!	C2	casual forum reply	5C2
After the recent heatwaves across Europe, climate activists have intensified their campaigns to urge leaders for faster emission cuts. Reports indicate that public pressure might finally force politicians to reconsider their environmental policies. However, without global cooperation, any local effort could prove insuf...	B2	news commentary	3B2
Hehe, I suppose it depends on how loose you're feeling about the term 'doable'! 😉 If we're talking about cracking it wide open, then yeah, some caffeine and a fierce commitment. But for a genuinely deep dive? Might want to clear your schedule.	C2	casual forum reply	5C2
Dear sir, I want to buy book. Can you send me price? I pay with card, so it is easy.	A2	formal email	1A2
Astute commentators have highlighted the enduring paradox of recent anti-establishment movements: railing against perceived elite control whilst paradoxically amplifying billionaire narratives. A cacophony of voices yet disquieting paucity of coherent alternatives – familiar narrative, different era.	C2	news commentary	5C2
Dear teacher, I am happy because I pass the exam. Thank you for help me.	A2	formal email	1A2
Unbelievable! Today we reached the summit just as the sun was setting. The day started damp, but after that grueling 3 hour climb in relentless rain, breaking through to see those hues... indescribable. Dinner now—mountain fare, simple but hearty. Tomorrow: down again before midday.	C1	travel diary entry	4C1
I am applying for this challenging role as I believe my background and qualifications make me an ideal candidate. My experience in customer service and project management, combined with a strong aptitude for detail-oriented tasks, allow me to consistently meet deadlines and exceed expectations. If chosen, I would be hi...	B2	job application paragraph	3B2
Dear sir, I am writing to ask about the job I apply for. I send my CV last month and I dont hear nothing. Can you tell me if I get the job or not?	B1	formal email	2B1
Dear sir, I want make apointment with you. I have problom with my order. Please help me because I need it soon. Thank you.	A2	formal email	1A2
Dear Dr. Anderson, I trust this message finds you well. Re: the upcoming conference schedule, might we adjust the proposed panels for day two? I believe shifting 'Emerging Methodologies' prior to the networking lunch could optimize delegate engagement. Kindly advise your availability for a brief discussion on Wednesday...	C1	formal email	4C1
This innovative kettle is a design marvel. Its ergonomic handle and glass body are not just aesthetically pleasing, but functionally superior. The rapid boil feature saves precious minutes, while the temperature gauge allows for precise control, ideal for brewing delicate teas. A minor quibble: the base could be larger...	C2	product review	5C2
I go school. I learn English because I want work in hotel. My friend go university but I no have money so I study English at home.	A2	academic paragraph	1A2
my day good and happy. i eat big ice cream chocolate! friend fun with me today. no work, sun shine.	A1	social media post	0A1
I am writing to inquire about the possibility of extending our collaborative research project beyond the initial 6-month term. Our recent findings have proven exceptionally promising, and we firmly believe that an extension will enable us to refine our methodologies and further consolidate our results. I anticipate you...	C1	formal email	4C1
I go London. I see big house and red bus. I like.	A1	travel diary entry	0A1
I'd say the movie was alright, not amazing but not terrible either. The plot had some cool twists but I think the characters could've been developed more? Also, the ending felt a bit rushed up, don't you think? But yeah, worth a watch if you have time.	B2	casual forum reply	3B2
News is good and bad	A1	news commentary	0A1
I like this phone. It is good but battery is bad. I buy it because it is cheap. My friend have it so I buy it too.	A2	product review	1A2
The overwhelming impact of the commercialization of scientific discovery in the early twentieth century cannot be overstated, fundamentally altering the trajectory of scientific inquiry itself and reframing its societal implications. This pervasive shift has incited intense scrutiny and polemical discourse concerning t...	C2	academic paragraph	5C2
I go to school. I learn English. I like it but is difficult. My teacher is nice so I like her. I go home and I do homework because I must.	A2	academic paragraph	1A2
I just see the new movie and it was amazing! The special effects was incredible. I think you should go see it, you will like it.	B1	social media post	2B1
Dear Prof. Carter, Your paper has truly revolutionised our understanding of the socio-economic dynamics. Would it be possible to schedule a 15-minute slot next week for a brief discussion regarding its impact? Many thanks in advance, Dr. Smith.	C2	formal email	5C2
Big dog and cat is white. Dog run and cat sleep	A1	news commentary	0A1
Just got back from an amazing trip to Japan, it was a real eye-opener, the food was to die for and the scenery was breathtaking, although I have to admit the language barrier was a bit of a challenge, but all in all it was an unforgettable experience!	C1	social media post	4C1
I have one book and two pen. Book is blue.	A1	academic paragraph	0A1
Honestly, I'm still reeling from that documentary, the way it subverted my expectations was nothing short of masterful, albeit a tad too self-indulgent at times	C2	informal chat message	5C2
This innovative espresso machine, though pricey, delivers unparalleled shots with a nuanced flavor profile, rivaling professional machines. Its sleek design is marred only by an occasionally flimsy water tank – a trifling issue considering the overall superiority.	C2	product review	5C2
Well, well, if it isn't a tempest in a teapot! 'Glacial pace'? Bit melodramatic, no? Technically, the renovation's probably just taking longer than you'd like. Calm down - impatience won't magically accelerate the timeline. #chill	C2	casual forum reply	5C2
Our eclectic tour de force across Tuscany crescendos in Siena. Her narrow cobbled arteries pulse with a tangible vibrancy, each curve unfurling a tableau vivant of ochre palazzos leaning conspiratorially above cobblestones worn smooth by centuries. The cool pungent aroma of aging leather from the merceria melds with th...	C2	travel diary entry	5C2
Me in Paris today. Go on bus. See tower. Tower very big. Sky blue. Also buy bread. Bread good. Hotel clean.	A1	travel diary entry	0A1
Ironically, this ostensible dichotomy between nominalism and realism belies a far more nuanced debate, wherein the putative binary oppositions are, in fact, subtly intertwined, thus warranting a more fastidious examination of the paradigmatic underpinnings of each philosophical stance.	C2	academic paragraph	5C2
I go to shop. I buy milk and bread. But I forget egg.	A2	informal chat message	1A2
I go to beach yesterday. I swim and I sunbathe. It was fun.	A2	travel diary entry	1A2
Whilst perusing the job description, I was struck by the congruence between the company's values and my own, notwithstanding the somewhat ambiguous nature of the role, which I believe would be elucidated through a thorough discussion of the position's intricacies	C2	job application paragraph	5C2
I want to work in hotel. I help people because I like them. I will be good worker so I hope you give me job.	A2	job application paragraph	1A2
Apparently, the nuances of online discourse have become so convoluted that even the most seemingly innocuous posts can spark controversy, which begs the question, are we merely perpetuating a culture of outrage or genuinely engaging with the issues at hand?	C2	social media post	5C2
I’ve been searching for the perfect smartwatch, and this one finally ticks all the boxes. Sleek design, intuitive interface, plus battery life that outlasts my day. Only minor quibble - the strap feels a tad flimsy, but overall, five stars!	C1	product review	4C1
Several recent studies have indicated potential links between climate change and extreme weather events. Rising temperatures contribute significantly to melting polar ice caps, leading to unprecedented sea-level rises. If global temperatures continue to increase at the current rate, serious consequences for coastal reg...	B2	academic paragraph	3B2
Hmm, that's a pretty broad stroke to paint, isn't it? I mean, sure, sensationalism sells papers and clicks—but honestly, have you seen some of those 'journalistic' deep dives lately? Felt like undergraduate-level dissections at best, frankly. Still, there's some good stuff out there if you dig for it. What specific pi...	C2	casual forum reply	5C2
Dear Sir Madam, I am Piotr. I live in Warsaw. I see job ad, waiter job. I want this job. My experience: not much experience but I work hard. Hobbies: football and reading books.	A1	job application paragraph	0A1
The weather has been really strange lately. Last month was so cold and now it is too hot. I read that it is because of changes in the climate, but I don't understand why really. It's not good for anything, you know? I heard on the news they said it will keep going like this if people don't start doing things different.	B1	news commentary	2B1
I am student. I like red and blue. I have one brother and one sister.	A1	academic paragraph	0A1
In recent years, universities across the globe have demonstrated a marked propensity for adopting interdisciplinary curricula. This shift in educational philosophy underlines the growing awareness among academic leaders of the multifaceted interrelationships that define contemporary global challenges. Consequently, gra...	C1	academic paragraph	4C1
Indeed, this maelstrom of events suggests our familiar geopolitical terrain is shifting rapidly. Yet, beneath the cacophony, nuanced patterns emerge. While pundits dissect every nuance of leadership shifts, a more profound current underlies: citizens themselves are wielding unprecedented influence.	C1	news commentary	4C1
The new 'eCozy' warming slippers are a blinding purchase this winter. If you value cozy toes without roasted feet, these are a paradigm shift. Beware the faux-silk interior; a conspicuous chafe factory. Still, four stars for dreamy warmth.	C2	product review	5C2
Hi! I like your post. Because I like music too. What music you like?	A2	casual forum reply	1A2
To be honest, my cat has been acting weirder since that meteor shower. Just meowing at the window at 3 AM for no reason! Think there might be aliens or something in your neighborhood too?	C1	casual forum reply	4C1
Yeah, true, I feel the same way sometimes. Would be cool if there was a quicker way to earn more points for every challenge though, you know? Like maybe even daily bonus or something. Might be too hard to code but would help us all out in the long run. What do you guys think?	B2	casual forum reply	3B2
My happiest memories are from my childhood summers, playing at the beach with my family. The sun would shine every day, and we’d spend hours building sandcastles and swimming in the warm sea. If it rained, we’d just stay inside reading or playing games. These are moments I will never forget.	B2	short personal essay	3B2
Oh no, did I miss your birthday? Happy belated! That's if it really was last week 😉 how was the party?	B2	informal chat message	3B2
I am John and I want job and I have family and I like blue	A1	formal email	0A1
omg im so hungry can we order takeout like now?! pizza or sushi??? also shoutout to my coffee for keeping me semi-alive today, otherwise I’d be a zombie rn hahaha😂	C1	informal chat message	4C1
hi all, just wanted to chime in on the earlier discussion about sustainability. I was reading an article about urban beekeeping and it’s actually pretty fascinating! Seems like a great way to combat colony collapse disorder without needing too much space, even in apartment balconies. Anyone tried anything similar?	C1	casual forum reply	4C1
Yesterday I go to beach. It is nice but the sun is hot. I swim in sea and I am happy.	A2	travel diary entry	1A2
Dear Dr. Alvarez, Regarding the Q3 report, while overall figures meet projections, Section 3.4 highlights a concerning 7% dip in client satisfaction scores. To mitigate future erosion, I propose we: a) augment staff training protocols focussing on proactive customer engagement, and b) implement bi-monthly client feedba...	C2	formal email	5C2
The contemporary educational framework prioritizes standardized assessments as the primary indicator of pedagogical efficacy. This pervasive metric, while providing a semblance of measurable academic achievement, frequently overlooks nuanced competencies such as critical thinking and adaptability – aptitudes increasing...	C1	academic paragraph	4C1
While not the first nor last individual to champion such revolutionary ideas, Galileo's contribution to scientific progress remains unparalleled. Through meticulous observation and mathematical rigor, he dismantled long-standing paradigms, laying the groundwork for our modern understanding of the cosmos.	C1	academic paragraph	4C1
Recent election results in several European countries show a decline in support for established parties, mirroring trends seen elsewhere. Experts believe this could reflect rising dissatisfaction with traditional political ideologies and economic challenges, potentially leading to more fractured and less predictable po...	B2	news commentary	3B2
My diverse background, including experience in customer service and project management, ideally prepares me for a dynamic sales role. Passionate about innovative solutions, I consistently exceed targets through proactive collaboration and adaptability to evolving market demands. Should you require an enthusiastic profe...	B2	job application paragraph	3B2
I have dog and cat. My dog is black and white. I have 2 dog.	A1	social media post	0A1
I am student. I have brother and sister. I like blue and red. I am 15.	A1	formal email	0A1
Ugh can you believe that message? Felt like he was passive aggressively sneaking in a sales pitch for his new “passion project”. So done with that whole thing. TBH just wana chill, maybe watch something brain-dead on the couch tonight, U? Any recs?	C1	informal chat message	4C1
My interest in this role stems from my strong background in customer service and a genuine passion for helping others. In my previous positions, I have consistently demonstrated the ability to manage diverse client needs effectively, often going above and beyond expectations to ensure satisfaction. Should I be offered ...	B2	job application paragraph	3B2
What an enchanting day it was! Waking up to the vibrant hum of morning in a Tuscan village is truly unparalleled. Strolling through cobblestone alleys, I happened upon a quaint little bakery. The aroma of fresh focaccia wafted through the air, mingling with sweet melodies of an elderly musician’s accordion. It’s these ...	C1	travel diary entry	4C1
Inebriated by the city’s kinetic energy, I strolled through narrow cobbled lanes today, marveling at the baroque architecture juxtaposed against avant-garde graffiti. Each fleeting encounter with a local — even that gruff old baker muttering curses — deepened my ambivalent affection for this gloriously contradictory m...	C2	travel diary entry	5C2
This phone's battery life astounds me; 48 hours straight without a single charge, that's impressive. The camera though, not so much— night mode shots are grainy, and low-light performance feels lacking. Still, for the price it’s a solid choice if you prioritise longevity over pure photographic prowess.	C1	product review	4C1

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CEFR English Level Dataset

A synthetic dataset of 1,785 English texts labeled with CEFR proficiency levels (A1 → C2), generated using Groq API (Llama-3.3-70b) with detailed per-level linguistic profiles.

Dataset Summary

Split	Samples
Train	1,605 (90%)
Test	180 (10%)
Total	1,785

Balanced across 6 CEFR levels — ~298 samples per level.

CEFR Levels

Label	Level	Description
0	A1	Beginner — simple words, short sentences
1	A2	Elementary — basic phrases, familiar topics
2	B1	Intermediate — clear standard language
3	B2	Upper-Intermediate — complex text, abstract topics
4	C1	Advanced — fluent, flexible, precise
5	C2	Mastery — sophisticated, nuanced, idiomatic

Domains (10)

formal email · short personal essay · informal chat message · product review · social media post · travel diary entry · academic paragraph · job application paragraph · news commentary · casual forum reply

Dataset Structure

{
  "text":   "Despite the challenging circumstances, she managed to articulate...",
  "level":  "C1",
  "domain": "academic paragraph",
  "label":  4   # int 0-5
}

Usage

from datasets import load_dataset

ds = load_dataset("yanou16/cefr-dataset")

# Access train split
for example in ds["train"]:
    print(example["text"][:80], "→", example["level"])

Generation Method

Texts were generated via Groq API using llama-3.3-70b-versatile with detailed per-level linguistic profiles:

Each level has a specific vocabulary range, grammatical complexity, and discourse features
10 different domain prompts to ensure variety
Post-generation validation: word count (5–250 words), deduplication
Stratified 90/10 train/test split

Model trained on this dataset

👉 yanou16/cefr-english-classifier — 84.9% accuracy

Limitations

Synthetic data — generated by LLM, not written by real language learners
May not capture authentic learner errors or L1 interference patterns
C1/C2 boundary texts are very similar (by design — mirrors human annotator difficulty)

Citation

@dataset{louzazna2025cefr,
  author    = {Louzazna, Rayane},
  title     = {CEFR English Level Dataset},
  year      = {2025},
  publisher = {HuggingFace},
  url       = {https://huggingface.co/datasets/yanou16/cefr-dataset}
}

Author

Rayane Louzazna — AI Engineering HuggingFace · GitHub

Downloads last month: 35

Models trained or fine-tuned on yanou16/cefr-dataset

yanou16/cefr-english-classifier

Text Classification • 2B • Updated 7 days ago • 3