Company hits $50M in revenue as agentic AI publishing platform proves a simple principle: AI should empower authors, not replace them

TEL AVIV, Israel and NEW YORK, Nov. 9, 2026 — Spines, the agentic AI publishing platform built to help authors turn written manuscripts into professionally published books, today announced that it has secured $64 million in growth capital to accelerate its expansion, combining a $29 million Series A-1 equity round led by Zeev Ventures, with participation from Aleph, NordStar, M-Fund, LionTree and angel investor Dan Senor, with a $35 million non-dilutive growth financing facility from Twelve.

Spines is also announcing that it has hit $50M in revenue run rate, seeing rapid 400% year-over-year growth as more than 8,000 American authors have published books using the platform, and around 400 new authors join every month.

“We don’t believe the future of publishing is AI writing books. We believe the future is AI giving authors superpowers,” said Yehuda Niv, founder and CEO of Spines. “The writing, the story and the knowledge come from the author. Our job is to build the technology and infrastructure around them; to help more people discover the author within themselves, turn their work into a professionally published book, and ultimately find and reach its audience.”

Authors come to Spines with their own manuscript and use the platform to manage the entire publishing journey. Specialized AI agents perform publishing tasks like editing, proofreading, cover design, formatting, metadata, translation, audiobooks, distribution, royalty management and marketing. Authors can also work with Spines’ in-house human editors, proofreaders, designers and native-speaking language professionals to add additional human expertise and support.

Spines distributes books through 100+ global distribution channels, tracking sales across different platforms and providing a centralized royalty management system that gives authors visibility into what their books are earning across channels and markets. The platform accelerates a process that traditionally took 12-18 months into a matter of weeks, while giving authors greater visibility, flexibility and control throughout their publishing journey.

• Spines now includes tools for audience development and marketing: its campaign management tools help authors create, launch and manage marketing campaigns designed to reach relevant readers, helping authors build demand for their titles.
• Spines is also rapidly expanding its AI-powered translation capabilities. The platform currently supports translation from English into seven target languages: Spanish, Italian, French, German, Portuguese, Polish and Hebrew, combining AI-powered translation with native-speaking human review. Over the next six months, Spines plans to expand that offering to a total of 20 target languages.
• Authors can create professionally narrated audiobooks with Spines using synthetic voices, or create a model of their own voice from a short recording and use it to narrate their book, even in other languages.
• For children’s book authors, Spines has also developed specialized AI illustration technology designed to maintain consistent characters across an entire book, allowing authors to create coherent, professionally illustrated children’s books within the same publishing workflow.

The round was led by Oren Zeev of Zeev Ventures, an early investor in Audible and a longtime investor in category-defining technology companies.

“Spines has all the ingredients to become the category leader in the next generation of publishing,” said Oren Zeev, Founding Partner of Zeev Ventures. “I’ve seen it first-hand; a close friend of mine published his book with Spines and had a great experience. I believe Spines can become the go-to platform for authors around the world to publish their books and reach readers.”

Aleph led Spines’ Seed round and went on to participate in both the Series A and the current Series A-1. Aleph Co-Founder and General Partner Michael Eisenberg, himself  the author of nine books, said:

“Spines’ growth since our seed investment has been extraordinary, and it’s clear that authors are hungry for this kind of AI-powered publishing solution. As an author myself, I know that writing the manuscript is only the first step in bringing a book into the world. Everything that comes afterward can be slow, fragmented and frustrating. What attracted me to Spines from the beginning was the opportunity to use technology to remove that friction without removing the author from the process. AI should amplify human creativity, not substitute for it, and Spines is building the infrastructure to make that possible at global scale.”

“For most of publishing history, gatekeepers decided who was worthy of becoming an author and which stories deserved to reach the world,” Yehuda Niv said. “Anyone with a story, an idea or knowledge to share deserves the opportunity to publish it. Our role is to give creators the tools, infrastructure and reach to find the audience for their work. To me, that’s the real promise of AI in publishing: not replacing writers, but removing barriers so that anyone with a talent for writing can become an author.”

About Spines

Spines is an agentic AI publishing platform built to help authors turn original manuscripts into professionally published books and reach readers around the world. Its publishing operating system combines specialized AI agents with access to human publishing professionals across editing, proofreading, design, formatting, translation, audiobook production, distribution, marketing and royalty management.

Spines works with thousands of authors and distributes titles across more than 100 channels worldwide.

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SOURCE Spines