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Oswin Data vs Deft

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 Deft
Detail Oswin DataDeft logo Deft
What it doesDatasets for RAG, fine-tuning and training built from public sources AI writing that doesn't sound like AI
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 plan with 2 requests per day; Basic $15/mo (200 generations/month); Pro $49/mo (800 generations/month); Premium $99/mo (2,000 generations/month); API: $2.50 per million input tokens, $12 per million output and thinking tokens, rounded up to nearest cent with 1 cent minimum per request.
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
  • Distribution fine-tuning for natural writing output
  • Browser-based console for generating and rewriting
  • Server-to-server API with /v1/generate endpoint
  • Specialized agents for SEO, rewriting, and copyediting
  • Custom model training on company style
  • Generation history and public share links
  • AI advising for AI transformation and strategy
  • Lightweight metrics and checking tools in editor
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
  • Trained on human prose to eliminate repetitive AI patterns and 'LLM slop'
  • More creative and varied output than general-purpose AI assistants
  • Custom models trained on your company's specific writing style
  • Preserves author's intent and voice without hallucinations
  • Usage-based API pricing with no charges for failed generations
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last check9 no change since last check
Trust Flow (Majestic)57
Citation Flow (Majestic)2824
Referring domains (Majestic)6940

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