Free tier with no limits. Paid plans: Day Pass $9.99 (24-hour one-time payment, up to 25,000 words), Pro $6/month when billed annually at $72 (up to 50,000 words/month), Unlimited $15/month when billed annually at $180 (no monthly word limit, 30,000 words/day fair use limit).
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
Autopilot mode for automatic rewriting until detection passes
Sentence-level alternatives for manual refinement
Preserve Formatting mode for document structure
Two humanization models: Premium and Stealth
Full history and cloud save for paid users
Plagiarism checker tool
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
Trained on 30 million real human writing samples from academia, blogs, and professional sources
Seven versions of refinement with continuous improvement
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