Replit, the browser-based coding platform, has stopped working with Anthropic, CEO Amjad Masad said, according to a TechCrunch report published Thursday.
The disclosure ends one of the most visible partnerships in AI-assisted software development. Anthropic's Claude models have been a mainstay of coding agents, and Replit's assistant was among the products that helped popularise 'vibe coding' — building and shipping software by describing it in plain language instead of hand-writing it.
The report does not fully spell out why the relationship ended, or which models Replit will lean on instead. The significance is structural: for coding platforms, model choice is no longer a footnote. It sets cost, latency and capability, and increasingly decides which vendor a company is publicly aligned with.
The split lands in a busy stretch for the sector. Anthropic has been expanding its own developer tooling, including an official plugin marketplace for Claude Code, while rival providers court the fast-growing market for agentic coding tools.
For teams building on Replit, the practical takeaway is to watch the platform's model lineup and any resulting changes to pricing or agent behaviour. For the wider market, it is another sign that the coding-assistant stack is still being redrawn — long after many developers assumed it had settled.
