Captions vs Grammarly

By valuation, Grammarly is the larger company at $13B versus $500M — a 26x difference. Size can also be measured by team: Captions employs 150 people while Grammarly has 2500 employees.

Grammarly has raised more in total funding at $545M, compared to Captions's $100M — a gap of $445M. Combined, the two companies have completed 6 known funding rounds.

Grammarly holds the higher Awaira Score at 88/100, compared to Captions's 67/100. The Awaira Score is a composite metric factoring in valuation, funding, stage, team size, and market presence — a 21-point gap that reflects meaningful differences in scale or traction.

Captions was founded by Gaurav Misra in 2021. Grammarly was founded by Alex Shevchenko in 2009. Visit each company's profile on Awaira for a full founder biography.

Captions: Captions is an enterprise AI company founded in 2021 that develops video understanding and analysis technology. The platform uses computer vision and machine learning to automatically generate captions, transcripts, and metadata from video content at scale. Captions serves organizations across media, enterprise communications, and compliance-heavy industries that need to process large volumes of video efficiently. The company's core technology focuses on speech-to-text conversion, speaker identification, and content indexing to make video searchable and accessible. Its platform integrates with existing video infrastructure and content management systems, enabling automated compliance, accessibility, and discoverability workflows. Notable applications include internal communications, training video management, and regulatory compliance documentation. Captions has raised $100 million in total funding and achieved a $500 million valuation as of Series C stage. The company competes in the growing market for enterprise video AI alongside providers like Rev and other transcription platforms, while differentiating through video-specific capabilities and enterprise-grade infrastructure. The funding trajectory reflects investor confidence in the video accessibility and searchability market, though Not disclosed regarding specific customer counts or revenue metrics. Growth appears tied to increasing enterprise demand for automated video processing and compliance documentation. Captions addresses the enterprise need to make video content machine-readable and searchable through automated AI analysis rather than manual workflows. 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 12 years of additional market experience. Captions was founded later in 2021. In AI, even a year or two of head start can translate into significantly more training data, customer relationships, and institutional knowledge.

Captions has approximately 150 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, Captions 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.