AI-Powered Manifest OS Secures Historic Funding to Revolutionize Legal Billing with Outcomes-Based Pricing
April 28, 2026
Manifest OS is an AI-powered platform aiming to replace the traditional billable-hour model with outcomes-based pricing, starting in business immigration and expanding to other practice areas, and it emphasizes fixed-fee pricing, transparency, and high-quality work.
Manifest OS envisions AI-native firms that replace billable hours with predictable timelines and pricing, automating non-core tasks to let lawyers focus on substantive work.
The platform automates non-core activities like business development, marketing, client intake, document collection, and billing to improve efficiency and lower costs.
The funding round is led by top venture firms including Menlo Ventures, Kleiner Perkins, First Round Capital, and Quiet Capital, with potential to be the largest Series A in legal technology history.
Industry observers describe the investment as a potential paradigm shift in law, driven by AI-driven efficiency and a focus on client outcomes over traditional billing models.
More than 100 immigration attorneys joined from a pool of over 5,000 applicants, and Manifest OS has supported over 150 corporate immigration programs for startups and major tech companies.
Funding will support the end-to-end AI-driven platform designed to disrupt traditional law firm models and bring outcomes-based pricing to a wider market.
Arising from year-end profits, the R&D focus aims to continually lower the cost of high-quality legal services as technology advances.
High-profile supporters, including investor and former general counsel David Schellhase, back the idea that AI-enabled, transparent pricing can reduce friction in billing for clients and lawyers.
Executives emphasize building a category-defining market leader by unifying AI tools with a scalable, transparent, and outcomes-focused model, rather than selling AI to legacy firms.
The article notes potential ripple effects on revenue models for mid-tier firms, given the sector’s fragmentation and high existing revenue baselines.
Profits are reinvested into research and development to fuel product growth and enhance the platform’s capabilities.
Summary based on 14 sources
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Sources

The National Law Review
Manifest OS Raises $60M to Scale the World’s First AI-Native Law Firm Model
Pulse 2.0 • Apr 28, 2026
Manifest OS: $60 Million Raised At $750 Million Valuation To Scale AI-Native Law Firm Model
Investing.com • Apr 28, 2026
Manifest OS raises $60M at $750M valuation for AI legal software
Business Wire • Apr 28, 2026
Manifest OS Raises $60M to Scale the World’s First AI-Native Law Firm Model