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Sealis vs Deft

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

Sealis compared with Deft
DetailSealis logo SealisDeft logo Deft
What it doesYour voice, kept yours, wherever AI writes or speaks for you AI writing that doesn't sound like AI
StageNot given Not given
FoundedNot given Not given
Based inAU Not given
Pricing modelFreemium Freemium
PricingFree: A$0/month with 10 rewrites per month and 1 voice. Pro: A$11.99/month with 150 rewrites per month (currently on waitlist). Studio: A$34.99/month for up to 5 clients, each with their own voice, 300 rewrites per month, and client approval pages. 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
  • Rewrite drafts in your voice while keeping facts, numbers and dates unchanged
  • Measure drafts for stock phrases, rhythm, word choice and punctuation
  • Save and learn from your writing style with every correction
  • Studio: save a voice per client with approval pages
  • Free Score tool with no signup required
  • 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
  • Automatically flags when rewrites drop or add numbers, dates or names without user approval
  • Learns from your corrections to improve rewrites over time
  • Preserves formality level and register while removing template phrases
  • Works across text, audio and visual formats with consistent voice
  • Built on published research and test results
  • 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)1 no change since last check9 no change since last check
Trust Flow (Majestic)37
Citation Flow (Majestic)2024
Referring domains (Majestic)640

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