Public company, workplace, funding, and market signals
TypeOS (legal entity GradeAssist, Inc.) is a Y Combinator-backed AI writing platform and Chrome extension for Google Docs that helps users rewrite AI-generated text into more natural prose, while also offering AI/plagiarism detection, research, grading, citation, and formatting tools for students, professionals, and educators.
Primary product
AI writing assistant for Google Docs with humanizer, AI detection, plagiarism checking, research, grading, and citation tools
Founded
2023
Headquarters
2261 Market Street, STE 86458, San Francisco, CA 94114, USA
Team size
1-10
Industry
Software Development
Sub-industry
AI writing assistant / document productivity software
Offices
Business model
0 jobs at TypeOS
Check back later for new openings
Stage
seed / accelerator-backed
Latest round
Y Combinator Spring 2025 (X25)
Y Combinator Spring 2025 (X25)
Y Combinator
Investors
Founder-led and research-driven, with public messaging centered on preserving the user’s voice, speeding up writing, and supporting academic/professional integrity; hiring signals suggest a lean team with high ownership.
Compensation
Public hiring posts show a Founding Engineering Intern role at $50/hr plus 0.5%-1.5% equity, a Founding Engineer role at $150k-$250k plus 0.5%-2.5% equity, and growth roles with flexible/hourly pay.
Pricing
Freemium with annual subscription tiers and enterprise pricing
Differentiators
Technology
Customers
Competitors