CRISPR-Cas9, as a fundamental gene-editing technology, is not sold as a commercial product with fixed pricing tiers in the traditional software sense. Its core principles and methods are widely accessible for academic research, often considered 'freemium' in that basic research can be conducted with publicly available protocols and reagents. However, commercial applications, therapeutic development, and advanced research often involve licensing agreements for specific Cas9 variants, delivery systems, or proprietary guide RNA designs. Companies like CRISPR Therapeutics, Vertex Pharmaceuticals, Intellia Therapeutics, and Beam Therapeutics hold patents and commercial rights for their specific therapeutic applications of CRISPR-Cas9 and related technologies. The cost for patients receiving CRISPR-based therapies, such as Casgevy, is substantial, reflecting the extensive research, development, and regulatory approval processes for novel gene therapies.