5М Consumer reviews & Complaints for NLP Training Data

LLM Fine-Tuning Data

Tags and Keywords

Nlp

Llm

Fine-tuning

Classification

Sentiment

Analysis

Text

Voice

Customer

Unstructured

Support

Intent

5М Consumer reviews & Complaints for NLP Training Data Dataset on Opendatabay data marketplace

£560,000

About

This dataset gives you access to a massive database of real, unedited customer reviews and complaints. Unlike sanitized corporate datasets or synthetic text, this dataset captures the unfiltered reality of human frustration, typos, high-emotion vocabulary, and specific customer demands. It’s perfect 'ground truth' data for data scientists and NLP engineers building language models or text analytics tools. The uploaded sample file is a preview catalog only and is not the full dataset. Final pricing depends on selected languages, number of audio hours, enrichment files, delivery format, and licensing scope. Average price per record/row is $0,15.

Data Product Features

The dataset clearly separates the customer's story (the review text) from their specific request (the 'wanted solution') into different columns. Key features include:
  • Unstructured Verbatim Text: Real human-written descriptions of product failures and service bottlenecks.
  • Intent Labels: Features a specific wanted_solution column (e.g., refund, apology), which serves as an ideal label for training intent-classification models.
  • User Metadata: Includes device type, precise timestamps, and geographic locations for contextual analysis.
  • Anonymized Identity: Uses Hashed Email (HEM - SHA256) as a unique identifier to allow for user journey tracking without exposing personal data.
  • PII Redaction: All text fields are strictly processed to remove Personally Identifiable Information (PII) before delivery.

Distribution

  • Format: Delivered in CSV or JSON format.
  • Data Volume: The full database contains millions of historical complaint records across 140,000+ brands. (This listing acts as a metadata sample).
  • Delivery: Custom delivery via secure S3 Bucket, SFTP, or API, customized by date range or specific industry categories.

Usage

This data product is ideal for a variety of AI/ML applications:
  • Application: Fine-Tuning LLMs & Chatbots: Exposing models to authentic, emotion-heavy human language to improve automated customer support responses and empathy.
  • Application: Sentiment & Emotion Analysis: Training text-classification models to score the severity of consumer frustration and detect legal or escalation threats.
  • Application: Intent Classification: Using the wanted_solution field to train algorithms to automatically categorize and route incoming customer tickets.

Coverage

  • Geographic Coverage: Global (Includes US, Canada, EU, UK).
  • Time Range: 2010 - Present.
  • Demographics: B2C consumers interacting with brands across multiple sectors (Airlines, Retail, Finance, E-commerce, etc.).

License

Proprietary

AI Training Rights

Licensee is granted a non-exclusive, worldwide, and perpetual right to:
  • Use the Data Product to train, fine-tune, and evaluate machine learning models, including large language models.
  • Incorporate Data Product content into models and commercialize resulting model outputs.
  • Create derivative works (model weights, embeddings, etc.) for any lawful purpose.
Restrictions:
  • The Data Product itself may not be sold, redistributed, or shared outside of licensed usage.
  • Licensee must comply with all applicable laws, including data protection and privacy regulations.

Who Can Use It

  • Data Scientists & ML Engineers: For training LLMs, sentiment analysis, and intent-classification models.
  • AI Startups: Building specialized Customer Experience (CX) or reputation management tools.
  • NLP Researchers: For academic or commercial studies on human-computer interaction and emotional language patterns.

Data Dictionary

Column NameData TypeDescriptionPossible Values/Notes
company_nameStringName of the public or private company receiving the complaint.
complaint_titleStringThe user-generated headline of the complaint.
complaint_textStringThe unstructured, verbatim text detailing the customer's experience.PII-redacted
wanted_solutionStringThe specific action or compensation the customer is demanding.Ideal for Intent labels
review_recommendationStringAdvice the complaining user gives to other potential customers.
device_typeStringThe platform/device used to submit the complaint.phoneIos, desktop, etc.
activated_dateDatetimeTimestamp when the complaint was published/activated.YYYY-MM-DD HH:MM:SS
countryStringCountry where the complaining user is located.
state_provinceStringState or province of the user.
city_districtStringCity or district of the user.
HEMStringHashed Email (SHA-256) serving as an anonymized, unique user identifier.e.g., b1ca054b7b1f...
register_dateDatetimeTimestamp when the user first registered on the platform.
last_visit_dateDatetimeTimestamp of the user's most recent activity on the platform.
catagory_nameStringIndustry or sector classification of the company.e.g., Airlines, Retail

Note for buyers: For access to larger historical subsets (up to millions of rows) tailored by specific industries, timeframes, or companies, please contact us directly after reviewing the sample schema.

Listing Stats

VIEWS

11

DELIVERY

CUSTOM, S3

LISTED

07/07/2026

UPDATED

10/07/2026

REGION

GLOBAL

Universal Data Trust Rating UDTRTRUST

5 / 5

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£560,000

Download Dataset in CSV Format