Spines raises $64 million for AI-powered hybrid publishing
Spines declined to disclose its valuation.
Spines, a hybrid publisher that uses AI agents to edit manuscripts, design covers, translate text and market books, has raised $64 million in new capital, the company said Monday, according to Fortune. The package includes 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, plus $35 million in what the company calls a non-dilutive growth financing facility from credit-focused investment firm Twelve. Spines declined to disclose its valuation.
Spines' publishing packages start at about $3,000 and run to $20,000 for a premium tier, with most authors choosing a mid-tier bundle costing $5,000 to $7,000, founder Niv told Fortune. The company recently raised its royalty split so authors keep 80% of net royalties, up from 70%, and reports royalties monthly rather than the twice-yearly or annual statements common in the industry, with plans to move toward weekly and eventually real-time reporting.
Niv said Spines is in early talks with one of the Big Five U.S. publishers about a partnership to use Spines and its AI agents to help run that publisher's services. The company has roughly 350 employees, about 50 of them in R&D, and Niv said he is aiming for 200% to 300% annual growth as Spines expands into the U.K., Canada and Australia.
Here's the number that actually matters to you: Spines pays authors 80% of net royalties, up from 70%, and reports monthly instead of twice a year. That's a real shift in a hybrid-publisher market where you pay upfront — packages run $3,000 to $20,000, most landing at $5,000 to $7,000 — so know what you're buying before you sign anything. I'm not telling you to rush toward it. I'm telling you that if a hybrid publisher is on your shortlist, compare its royalty split and reporting cadence against this one, because now you have a benchmark.
From the Coral Wire edition of Tue, Nov 10 2026 · Coral Index 79/100 (Green light)