At Grammarly, we’re committed to building AI that supports effective, thoughtful communication—without compromising on safety, privacy, or user trust. That commitment has always guided how we design, develop, and deploy our AI-powered writing assistance. Now, it’s backed by an internationally recognized standard: Grammarly is officially ISO/IEC 42001:2023 certified.
As AI becomes increasingly central to the way we work, write, and connect, the need for clear guidelines around its ethical development and use has never been greater. Enter ISO 42001—the world’s first international standard focused specifically on managing AI systems responsibly.
What ISO/IEC 42001:2023 is—and why it matters
ISO 42001 helps organizations establish a framework for governing AI in a way that’s secure, transparent, and aligned with human values. This certification validates what Grammarly has prioritized from the beginning: building AI that enhances communication while proactively assessing risk and safeguarding user data. ISO 42001 compliance shows that Grammarly’s AI is:
- Ethically designed to align with human values
- Aligned with best practices and an eye toward emerging regulations
- Secure and privacy-conscious to protect sensitive data
- Continuously monitored for risks and unintended consequences
- Trustworthy and reliable for enterprise and user applications
Grammarly’s certification means our approach to AI has been independently verified against this robust framework—making us one of the first companies globally to achieve this milestone.
How Grammarly aligns with ISO 42001
We’ve embedded responsible AI principles into every part of our product development lifecycle. Here’s how our approach maps to ISO 42001’s key control areas:
Policies that prioritize responsibility
Grammarly maintains a formal set of AI policies that guide the development, deployment, and oversight of our AI systems. These policies are reviewed annually and reflect our commitment to safety, privacy, and user-centric innovation. We’ve established an Artificial Intelligence Management System (AIMS) and conduct independent audits to ensure accountability.
A dedicated responsible AI team
We’ve built a cross-functional team that oversees AI governance and ensures alignment with ethical principles. Roles and responsibilities are clearly defined within our organizational structure. All employees receive ongoing training in AI ethics, privacy, and security practices.
Carefully managed AI resources
Our datasets and third-party tools are carefully reviewed and secured. We maintain strict access controls and prohibit partners from using any customer content to train their models. Our generative AI is powered by trusted partners like Microsoft Azure OpenAI and OpenAI, but customer data is never shared for model training.
Proactive risk and impact assessments
We conduct thorough AI-specific risk assessments, including red teaming and adversarial testing, to evaluate fairness, safety, and bias. Users are empowered to report concerns, and we continuously monitor AI outputs through automated and human evaluation.
A full lifecycle approach to AI
Our AI systems are governed at every stage—from design and development to deployment and decommissioning. Before releasing a new feature, we run extensive testing to ensure it meets high standards for quality, inclusivity, and usability.
Secure, fair, and transparent data use
Grammarly enforces strong governance over the data used to build our AI, emphasizing quality, fairness, and privacy. Users can control how their content is used, and we never sell user content.
Clear, accessible information for stakeholders
Transparency is a core principle at Grammarly. We provide explanations for AI-generated suggestions and maintain clear documentation around our privacy and security practices in our User Trust Center. Dedicated customer support and success teams are available to answer AI-related questions.
Human-centered AI use
Grammarly’s AI is designed to support—not replace—human creativity and judgment. Users always remain in control of how they engage with AI suggestions, and our systems are built with transparency and user agency at the forefront.
Responsible third-party partnerships
We hold our vendors and subprocessors to the same high standards we set for ourselves. All partners undergo annual security and compliance reviews, and we are transparent about where third-party AI models are used. Grammarly holds enterprise-grade certifications including SOC 2 (Type 2), ISO 27001, and ISO 27701, and is compliant with HIPAA, CCPA, GDPR, and more.
Building AI you can trust
Achieving ISO/IEC 42001:2023 certification is more than a milestone—it’s a reflection of how deeply we care about building AI responsibly. Our responsible AI team ensures that safety, fairness, and transparency are embedded into every model we create and every user experience we deliver.
We’re committed to helping individuals and businesses confidently use AI to communicate more effectively—without compromising on trust.
Learn more about our approach at grammarly.com/responsible-ai, and check out our white paper to explore our responsible AI practices in depth.
