Grammarly’s class-action fight over an AI review feature has turned writing software into a test case for identity and style rights.
AI Feedback Meets Consent Law
The shutdown signaled a retreat for the world's most ubiquitous writing assistant. Grammarly abruptly disabled its Expert Review feature today, reacting to a mounting legal storm that threatens the future of generative artificial intelligence in professional software. San Francisco legal circles were buzzing with news of a class action lawsuit filed just hours before the tool went dark. Writers, academics, and the estates of deceased intellectuals are targeting Grammarly and its partner, Superhuman, alleging the unauthorized use of their names and stylistic identities to power a high-end editing tool. The lawsuit drew attention on March 11, 2026, because it turned AI feedback into a dispute over authorship, identity and consent. Expert Review debuted last August with a bold promise. It offered users the ability to receive feedback on their prose as if it were written by famous literary figures or scientific giants. Users could draft an email and ask for a critique from a digital simulacrum of Carl Sagan, an acclaimed novelist, or a prominent tech blogger. Grammarly marketed the feature as a way to elevate mundane correspondence into something more profound. But the underlying mechanics relied on large language models trained on massive datasets without the consent of the authors they mimicked. The legal system moved faster than the product cycle. Plaintiffs argue that Grammarly exploited their reputations for commercial gain without offering compensation or seeking permission. Wired reported that the feature used publicly available information from third-party models, a phrase that often masks the reality of web crawlers harvesting copyrighted material.
Such tools do not just learn from the text. They attempt to replicate the specific creative voice and authority that authors spend decades building. Critics call it a sophisticated form of identity theft rebranded as technological progress. San Francisco lawyers representing the class of plaintiffs describe the feature as a violation of the right of publicity.
This litigation centers on the unauthorized commercial exploitation of a person's name, likeness and identity. While AI companies often claim that training models on public text constitutes fair use, the Grammarly case adds a layer of complexity.
Expert Names Become the Product
The product did not just use text for training. It explicitly sold the names and authority of these authors as a feature to paying customers. Superhuman, the email client that integrated these Grammarly tools, finds itself equally entangled in the legal fallout. Authors began noticing their names appearing in the Expert Review menu late last year.
Living writers expressed outrage at seeing their professional identities reduced to a toggle switch in a software interface. Grammarly initially responded with a defensive strategy. The company introduced an opt-out system, placing the burden of protection on the victims. This mechanism required authors to find their own names in the database and request removal, a process that many deemed insulting and ineffective.
Carl Sagan cannot opt out of a database from beyond the grave. Estate lawyers have joined the fray, arguing that the likeness of deceased public figures remains protected property. Grammarly attempted to shield itself with a disclaimer. The company stated that references to experts were for informational purposes only and did not indicate affiliation or endorsement.
Yet, legal analysts suggest such fine print offers little protection when the entire selling point of the feature is the perceived endorsement of an expert's style. Engadget noted that the tool even mimicked tech bloggers and scientific minds, casting a wide net that left few sectors of the intellectual community untouched. Training data for these models remains a point of intense friction. Grammarly claims its experts were based on public data, but sources suggest these datasets are the result of indiscriminate scraping.
When a model recreates the specific cadence of a Pulitzer Prize winner, it is not merely generating text. It is harvesting the specific intellectual labor of a human being.
The Prestige of Expertise Was the Product
Does the ghost of a writer belong to a corporation? Silicon Valley seems to think so, operating on the arrogant assumption that every word ever written is merely raw material for their next product launch. Grammarly and Superhuman did not just scrape data. They attempted to commodify the very essence of human authority by selling the names of greats like Carl Sagan as if they were nothing more than aesthetic filters. It is the ultimate expression of the tech industry's disdain for actual expertise. They want the prestige of the expert without the inconvenience of paying the human.
Grammarly's pitch that an AI feature can reproduce expert judgment is a grotesque distortion of reality. A real review requires consent, accountability and the presence of an actual expert. An algorithm trained on a writer's work without permission is a commercial imitation, not a bridge to better writing. The class action lawsuit is a necessary correction to a sector that has grown far too comfortable with digital shoplifting. If Grammarly wants to offer expert reviews, it should hire experts. If it wants to use the names of the world's most influential thinkers, it should write a check to their estates. The era of the digital free lunch is over, and it is about time the courts enforced the bill.