Replit CEO claims partnership with Anthropic has ended; insiders dispute the claim
CEO Amjad Masad said Thursday that Replit is no longer working with Anthropic, citing cost, partnership fit, and performance reasons, but sources familiar with the partnership say it remains active.
What happened
Replit CEO Amjad Masad announced at TechCrunch Disrupt on Thursday that the company is no longer partnering with Anthropic, stating the decision was driven by cost, partnership considerations, and performance metrics. Masad said he thinks ChatGPT is better now and that the company uses internal benchmarks to assess performance, with Sol and Astra performing better on building vibe-coded applications from scratch. However, an unnamed insider familiar with the partnership disputed Masad's claim, stating the partnership is still in place. There is evidence on Replit's website, blog posts, and social media posts that Replit was actively using Anthropic products as recently as late September, including a blog post citing Claude Fable 5 and Claude Fable 5.1 in Replit Agent's production environment and social media posts about using Anthropic's flagship model Opus 5.5.
Context
Replit uses a cloud-based platform where developers build and deploy applications in a browser, and the partnership with Anthropic previously helped the company grow its revenue significantly. Replit's revenue mix is shifting, with enterprise contracts growing from 2% of revenue last year to 15% this year, while B2B revenue now represents more than 50% of total revenue. The dispute over the partnership's status matters because it reflects either a significant shift in Replit's AI infrastructure strategy or contradictions in how the company's leadership is publicly characterizing its vendor relationships.
What's disputed
Whether the partnership between Replit and Anthropic has actually ended. Masad publicly claimed it has ended, but an unnamed insider said the partnership remains in place, and contemporaneous evidence from Replit's website and social media as of late September shows active use of Anthropic's Claude models.