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Oswin Data vs blogwriter

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 blogwriter
Detail Oswin Datablogwriter logo blogwriter
What it doesDatasets for RAG, fine-tuning and training built from public sources AI blog writer that learns what you sell and how you sound, then writes researched posts you can publish
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) Trial: 5 posts free, no card. Bring Your Own: $19/month or $190/year (30 posts/month). Everything Included: $59/month or $590/year (30 posts/month, 120 pictures/month included). Done For You: $499/month (one post daily). Lifetime: $1,499 (Everything Included, paid once, first 100 only).
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
  • Reads your website to learn your voice and what you sell
  • Fact-checks every number in posts against its source
  • Generates diagrams and illustrations with custom briefs
  • Plan and schedule posts by the month with calendar
  • Autopilot publishing to your CMS, GitHub or webhook
  • Edit posts as readers see them before publishing
  • Runs locally on your Mac with your own Claude subscription
  • Keyword research and clustering for topic planning
  • Interlink posts to boost SEO
  • Picture generation included on Everything Included and Done For You plans
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
  • Reads your site first so posts sound like you and make claims you can back
  • Stops writing if any number cannot be traced to a source
  • Drafts never leave your Mac; only images and review links reach servers
  • Runs on your own Claude subscription with no API key needed
  • Autopilot publishes on schedule without touching the content
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last check8 −1 (down) since last check
Trust Flow (Majestic)54
Citation Flow (Majestic)2820
Referring domains (Majestic)6913

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