In a surprising turn of events, Rakuten Kobo, a major player in the digital publishing world, has revealed that it rejected nearly half of the self-published books submitted to its platform in 2025. The self-publishing service, Kobo Writing Life, is designed to give authors the freedom to publish their works without traditional gatekeepers, but the company's chief executive, Michael Tamblyn, has made it clear that not all submissions meet the platform’s standards.
AI-Driven Rejections Dominate
According to Tamblyn, over 80% of the rejections were due to what he described as books that were “manifestly” AI-generated or heavily reliant on AI tools. This move underscores a growing concern in the publishing industry about the increasing use of artificial intelligence in content creation and the potential dilution of originality and quality in self-published works.
The rejection rate highlights a significant shift in how digital platforms are grappling with the rise of AI-assisted writing. As AI tools become more accessible and sophisticated, publishers like Kobo are under pressure to maintain editorial integrity and ensure that their platforms remain a space for genuine human creativity.
Industry Implications
This trend may reflect broader industry changes, as publishers and platforms increasingly seek to distinguish between authentic, human-authored content and AI-generated material. Tamblyn's comments suggest that Kobo is not only enforcing its own quality standards but also positioning itself as a leader in maintaining the distinction between human and machine-generated content.
With the rise of AI in creative industries, this decision could influence other platforms to adopt similar measures. It also raises questions about how the publishing world will adapt to the growing presence of AI, and whether such policies will ultimately promote or hinder the democratization of publishing.
Conclusion
As the publishing landscape evolves, platforms like Kobo are navigating the delicate balance between accessibility and quality. By rejecting AI-heavy submissions, Kobo is signaling a strong stance on preserving the value of human creativity in an age where AI is increasingly prevalent. This decision could set a precedent for how other publishers approach the challenge of AI in content creation.



