Free tier available; Plus and Ultimate paid plans with credit system (1 credit per 100 words). One-time packages and monthly subscriptions available with money-back guarantee within 14 days.
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
Paper analysis with scoring across multiple dimensions
Plagiarism detection and AI-written text identification
Citation style and consistency checking
Logical error and argumentation analysis
Grammar, spelling and inclusive language errors
Bibliography verification against trusted databases
Custom requirements upload for university-specific guidelines
Prioritized to-do list for revisions
Defense Studio with voice practice and recorded sessions
Page-by-page feedback with inline corrections
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
Feedback typically delivered within 5 minutes using parallel processing
Comprehensive analysis across structure, logic, language, citations and plagiarism
Data protection with no training on user documents and user-controlled deletion
Money-back guarantee within 14 days if unsatisfied
Trusted by over 5000 students and universities globally
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
PaperCheck
Deft