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The startup accelerator Y Combinator has observed a notable increase in the length of its applications over the past three years, a phenomenon some partners attribute to the growing use of artificial intelligence in drafting responses. Distinctive linguistic patterns, such as the pronounced use of em dashes and specific vocabulary, are emerging as potential indicators of AI-assisted writing, sparking a discussion among YC’s leadership about the role of AI in founder communications.

The AI Imprint on Startup Submissions

In recent years, applications submitted to Y Combinator have seen a significant increase in their overall word count. According to Tyler Bosmeny, a YC partner, the length of these submissions has expanded by 60% over the last three years. This surge has led to speculation that applicants are increasingly leveraging AI writing tools to articulate their ideas regarding business concepts, competitive landscapes, and revenue models.

Pete Koomen, another YC partner, noted a shift in writing style, remarking on the unusual phrasing found in contemporary applications compared to those from just a year prior. He highlighted the rising frequency of certain words, such as “wedge,” which appeared in less than 1% of applications in spring 2025 but surged to over 20% by summer 2026. Simultaneously, the use of em dashes – particularly those framed by spaces – also saw a dramatic rise, appearing in over half of all YC applications by summer 2025. This latter trend, Koomen suggests, aligns with the launch of advanced AI models like Anthropic’s Opus 4, indicating a potential correlation between AI tool availability and stylistic changes in applications. Interestingly, another word often linked to AI-generated text, “delve,” experienced a brief spike in early 2024 but never reached significant prevalence, suggesting that AI’s linguistic fingerprints can vary.

The debate within YC regarding AI-assisted writing is not without nuance. Garry Tan, the current CEO, has openly admitted to using AI for his own writing, viewing it as a “high-bandwidth conversation” that helps refine ideas. He believes that any shortcomings in AI-generated text can be “fixed” by human oversight. Conversely, YC co-founder Paul Graham holds a more skeptical view. He has expressed discomfort with emails from founders that exhibit a “hard-hitting journalistic style,” which he identifies as characteristic of AI. Graham finds such submissions disingenuous, likening the experience to being deceived. His criticism extends to specific vocabulary, like the word “delve,” which he considers a tell-tale sign of ChatGPT usage. Despite these differing opinions, Y Combinator continues to support startups that specialize in AI-generated writing, reflecting a broader acceptance of AI within the tech ecosystem.

The evolving landscape of Y Combinator applications underscores a broader conversation about the integration of artificial intelligence into creative and professional processes. While AI tools can enhance efficiency and refine expression, their pervasive use raises questions about authenticity, originality, and the value of human-centric communication. For founders, the challenge lies in leveraging AI effectively without sacrificing their unique voice and genuine passion. For accelerators like YC, it prompts a reevaluation of assessment criteria and an adaptation to new forms of applicant engagement. This trend invites us to consider how technology shapes not only our work but also our perception of integrity and innovation in the competitive world of startups.

In the intricate landscape of professional environments, encountering challenging colleagues is an almost inevitable experience. Mike Katz, a distinguished former executive from T-Mobile, offers invaluable insights and actionable strategies for effectively navigating these complex interpersonal dynamics. His extensive career, marked by a progression from an entry-level sales position to a C-suite role, provides a rich foundation for his advice on fostering productive working relationships even with the most difficult individuals. Katz's philosophy centers on a proactive and self-aware approach, emphasizing the importance of a strong professional network and strategic communication in achieving desired outcomes.

Former T-Mobile Executive's Strategic Framework for Interacting with Difficult Coworkers

Mike Katz, who until recently served as T-Mobile's chief business and product officer and continues in a strategic advisory capacity through December 2026, shared his refined approach to managing interactions with challenging colleagues. With a career spanning over a dozen roles within the telecommunications giant, Katz possesses a deep understanding of organizational dynamics.

His first piece of counsel is to acknowledge the inherent reality of encountering difficult personalities in any professional setting. He stresses the importance of approaching such interactions with realistic expectations, understanding that not every conversation will conclude with perfect harmony.

Second, Katz advocates for meticulously defining what constitutes success prior to engaging in discussions with difficult coworkers. For instance, if the objective is to secure project approval, the focus of the conversation should remain steadfastly on achieving that specific goal. The success of the interaction, he notes, should be measured by the accomplishment of the objective, rather than by the emotional tone or personal rapport established.

A third strategy involves deliberately attempting to build personal connections with these individuals. Katz suggests that sometimes, a simple effort to understand a colleague on a more personal level can significantly alleviate underlying tensions and pave the way for more constructive professional engagement. Taking time to establish rapport before diving into business can often transform strained relationships.

Finally, if prior attempts to foster common ground prove unsuccessful, Katz advises concentrating on one's own conduct. He passionately upholds the 'golden rule,' advocating for treating others as one wishes to be treated. By consistently maintaining a positive and professional demeanor, individuals can prevent exacerbating tensions and, in some instances, even catalyze a positive shift in the dynamic with a challenging colleague, demonstrating that a change in one's own approach can lead to an improved collaborative environment.

Katz's practical wisdom offers a beacon for professionals striving to cultivate more harmonious and productive workplace relationships. His strategies underscore the power of self-awareness, clear communication, and empathetic engagement in transforming potentially disruptive interactions into opportunities for professional growth and collaborative success. These insights are particularly salient in today's diverse and interconnected work environments, where effective interpersonal skills are paramount to both individual and organizational achievement.