Glean vs Grammarly

By valuation, Grammarly is the larger company at $13B versus $4.6B — a 2.8x difference. Size can also be measured by team: Glean employs 500 people while Grammarly has 2500 employees.

Glean has raised more in total funding at $600M, compared to Grammarly's $545M — a gap of $55M. Combined, the two companies have completed 11 known funding rounds.

Grammarly holds the higher Awaira Score at 88/100, compared to Glean's 82/100. The Awaira Score is a composite metric factoring in valuation, funding, stage, team size, and market presence — a 6-point gap that reflects meaningful differences in scale or traction.

Glean was founded by Arvind Jain in 2019. Grammarly was founded by Alex Shevchenko in 2009. Visit each company's profile on Awaira for a full founder biography.

Glean: Glean is an enterprise AI search and discovery platform founded in 2019 that helps organizations extract actionable insights from internal data. The company operates in the enterprise AI category, providing AI-powered search capabilities across fragmented corporate information systems including documents, emails, chat messages, and databases. Glean's core technology uses machine learning to understand context and intent, enabling employees to find relevant information and answers across previously disconnected data sources. The platform serves large enterprises seeking to improve productivity and knowledge accessibility. Glean competes in the growing enterprise search and generative AI market alongside companies like Perplexity and traditional search providers adapting to AI. The company has raised $600 million across multiple funding rounds, reaching a valuation of $4.6 billion as of its Series E stage. This funding positions Glean among well-capitalized AI startups addressing enterprise information retrieval challenges. The company targets mid-to-large organizations where data silos and information discovery present operational inefficiencies. Glean's growth trajectory reflects broader enterprise adoption of AI-powered search solutions as organizations increasingly prioritize knowledge worker productivity and unified information access across their technology stacks. Glean specializes in enterprise-specific AI search that unifies fragmented internal data sources rather than external web indexing. Grammarly: Grammarly is an AI-powered writing assistance platform founded in 2009 that provides real-time grammar, spelling, punctuation, and style corrections across digital communication channels. The company offers both consumer and enterprise products, including browser extensions, desktop applications, and web-based editors that integrate with email clients, messaging platforms, and document editors like Google Docs and Microsoft Office. The platform uses machine learning and natural language processing to analyze writing for clarity, engagement, and delivery. Beyond basic grammar, Grammarly detects tone issues, provides vocabulary suggestions, and offers plagiarism detection in premium tiers. The enterprise version, Grammarly Business, targets organizations seeking to standardize communication quality across teams. As of recent valuations, Grammarly reached a $13.0 billion valuation with $545 million in total funding, positioning it as one of the most heavily funded AI writing tools. The company competes with tools like Microsoft Editor and emerging AI writing assistants powered by large language models. Grammarly serves millions of users globally, including students, professionals, and corporate teams. The platform's growth has accelerated with increasing demand for workplace writing tools and AI-assisted productivity software. The company remains privately held, having declined a reported acquisition offer from Microsoft in 2021. Its competitive advantage lies in its large user base generating training data and its focused specialization in writing assistance. Grammarly's $13B valuation reflects the substantial market demand for AI-powered writing assistance tools integrated into everyday digital workflows.

Grammarly was founded first in 2009, giving it 10 years of additional market experience. Glean was founded later in 2019. In AI, even a year or two of head start can translate into significantly more training data, customer relationships, and institutional knowledge.

Glean has approximately 500 employees, while Grammarly has approximately 2500. A larger team often signals higher revenue or venture backing, but in AI, smaller teams are increasingly capable of building at scale.

Yes, Glean and Grammarly are direct competitors — both operate in the Enterprise AI space and likely target overlapping customer segments. This comparison is especially relevant for buyers evaluating both platforms.