Skip to the shop floor

Spell vs Opsis

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

Spell compared with Opsis
DetailSpell logo SpellOpsis logo Opsis
What it doesAI document generator that makes you sound remarkably good Autocomplete and AI assistant for Mac and Windows, built on a private account of your work
StageNot given Startup
FoundedNot given 2026
Based inUS AU
Pricing modelFreemium Freemium
PricingFree plan with 10 documents and 10k AI credits per month; Pro at $20/month with unlimited documents and up to 100k AI credits per month; Business at $40/month with unlimited AI usage, single sign-on, and organizations. Not given
Key features
  • Generate document drafts in seconds using AI
  • Edit documents using natural language prompts
  • Real-time team collaboration
  • Full-featured document editor with formatting
  • Document templates and guided creation
  • Support for multiple document types
  • Private and encrypted documents
  • No data used for AI training
  • Single sign-on for teams
  • Organizations management
  • Autocomplete with Tab to accept drafts
  • Error detection and fact-checking
  • Cross-app integration
  • Source attribution for every suggestion
  • Context-aware AI assistance
  • One-click pause and privacy control
  • Encrypted data storage
  • Read-only app connections
  • Natural writing style matching
What makes it different
  • Purpose-built for documents with higher quality outputs than generic AI chat tools
  • Complete workflow in one place without switching between tools
  • AI-first platform designed from the ground up for document creation
  • 10x faster than Google Docs
  • Continuous editing with both AI and manual refinement
  • Finishes sentences from your actual work history and connected files, not generic AI
  • Shows source for every suggestion so you can verify it before accepting
  • Catches mistakes and contradictions between what you're writing and your work history
  • Works inline in the apps you already use without installation
  • You stay the author with full control over what gets written
Community votes00
DR (Domain Rating by Ahrefs)27 +1 (up) since last check4 no change since last check
Trust Flow (Majestic)120
Citation Flow (Majestic)2112
Referring domains (Majestic)1801

5 details filled in for both companies.

More alternatives to Spell More alternatives to Opsis

Support