Grammarly vs Glean

By valuation, Grammarly is the larger company at $13B versus $7.2B — a 1.8x difference. Size can also be measured by team: Grammarly employs 2500 people while Glean has 500 employees.

Glean has raised more in total funding at $770M, compared to Grammarly's $545M — a gap of $225M. Combined, the two companies have completed 8 known funding rounds.

Grammarly leads with an Awaira Score of 88/100, while Glean sits at 82/100. That 6-point gap reflects real differences in funding, scale, and traction — it's not a vanity metric.

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

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. 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. 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. Glean operates in the Enterprise AI sector and is headquartered in United States. Founded in 2019 by Arvind Jain, Glean has raised $770M in total funding, achieving a valuation of $7.2B as of its latest round. The company's funding journey includes a Series A of $30M in 2020, a Series B of $40M in 2021, a Series C of $100M in 2022, a Series D of $200M in 2023, a Series E of $230M in 2024. The most recent round was led by Sequoia Capital. With approximately 500 employees, Glean has established itself as a Series F-stage player in the Enterprise AI market. The company holds an Awaira Score of 82/100, reflecting its strong position across valuation, funding trajectory, team scale, and market influence. Glean competes in a rapidly evolving segment alongside other Enterprise AI companies. Based in United States, Glean is part of a growing international AI ecosystem attracting talent and investment. The Enterprise AI space has attracted significant investment in recent years, with companies racing to capture enterprise and consumer demand for AI-powered solutions.

Grammarly got there first, launching in 2009 — that's 10 years of extra runway. Glean didn't arrive until 2019. In AI, that kind of head start means more training data, deeper customer relationships, and a bigger talent moat.

Grammarly has about 2500 employees; Glean has about 500. A bigger team usually means more revenue or heavier VC backing, but in AI, small teams can build at massive scale.

Yes — they're direct rivals. Both Grammarly and Glean compete in Enterprise AI, targeting many of the same buyers. If you're evaluating one, you should be looking at the other.