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Oswin Data vs BuffNerf AI

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Oswin Data compared with BuffNerf AI
Detail Oswin DataBuffNerf AI logo BuffNerf AI
What it doesDatasets for RAG, fine-tuning and training built from public sources AI prompts that finish the job
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelPaid Freemium
PricingWeb Corpus: starter sets from $49 (250,000-500,000 documents); shelf corpora from $99-$199 per shelf (one-time license); Everything (full crawl) $3,000 one-time; Whole Library (all builds for one year) $5,000 per year. Reference Collections: Encyclopedia $1,200 commercial or $349 research (one-time) Free: 12 workflows and one free weekly email prompt. BuffNerf Prompt Pack: US$9 one-time for 72 prompts.
Key features
  • Web corpus with 100.7M documents and 105B tokens from Common Crawl
  • Documents scored with Bear Rank and shelved by subject
  • 15 million encyclopedia entries with sources and model attribution
  • 200 million synthetic Q&A records with metadata
  • Delivered as JSONL and Parquet formats
  • Free samples available on Hugging Face
  • Command-line client with resumable downloads and SHA-256 verification
  • Statistics collection with 7,000 topics and 140,000 figures
  • Glossaries for 10,000 topics with one million definitions
  • Book Q&A dataset with 8,000 titles for reading comprehension
  • 12 free prompt workflows covering writing, support, productivity, learning, spreadsheets, and email
  • 72 prompts in the Prompt Pack with variants and checklists
  • Illustrative examples for each prompt
  • Content available in English and simplified Chinese
  • Free weekly email with new prompts and AI releases
What makes it different
  • All datasets built only from public sources with full provenance tracking
  • Every record includes source attribution and licensing information
  • Eight curated subject shelves for targeted corpus selection
  • Flexible purchasing: buy individual shelves, slices, or entire library
  • Over 4 TB of clean, deduplicated text ready for machine learning
  • Copy-ready prompts with illustrative examples to verify output before publishing
  • Practical problem-focused workflows instead of generic prompt collections
  • Editorial AI tool rankings by use case with never-paid-for rankings
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)50
Citation Flow (Majestic)280
Referring domains (Majestic)690

5 details filled in for both companies.

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