Replit makes OpenAI its default over Anthropic, CEO says
- ID
- 36442
- Status
- summarized
- Published
- 18 Oct 2026, 2:48 AM
- Fetched
- 20 Oct 2026, 2:43 AM
- Provider
- TechCrunch
- Category
- technology
- Original URL
- https://techcrunch.com/2026/10/17/replit-is-no-longer-working-with-anthropic-ceo-says/
- Source URL
- https://techcrunch.com/feed/
Summary
- Score
- 6.0
- Created
- 20 Oct 2026, 2:43 AM
- Tags
- Audience
- developersvibe_codersai_agent_userssaas_founders
What happened
At TechCrunch Disrupt, Replit CEO and co-founder Amjad Masad said Replit is no longer working with Anthropic, citing cost, partnership, and performance — a shift that follows an OpenAI partnership announced in August. Masad later clarified that Anthropic models are still selectable on the platform, but OpenAI's ChatGPT is now the default powering Replit Agent, and he said Replit had been a top-five Anthropic customer until recently. He claimed internal and public benchmarks show OpenAI's 'Sol and Astra' perform better at building vibe-coded apps from scratch.
Why it matters
If you ship on Replit Agent, the model behind your prompts changed without you opting in — and because most users never switch off the default, your output quality, token spend, and prompt behaviour now track OpenAI, not Claude. If you have prompts, agents, or eval baselines tuned on Claude inside Replit, re-run them before your next build, and explicitly pin the model rather than trusting the default. The stated driver was cost as much as quality, which means default routing can move again for business reasons, not benchmark ones.
Discussion angle
"Model agnostic" still means one default — should Replit (and similar platforms) show which model produced each artifact, and should teams pin models explicitly before benchmarking their own apps instead of trusting vendor-published comparisons?