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Replit makes OpenAI its default over Anthropic

Original title: Replit makes OpenAI its default over Anthropic, CEO says

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What it is: Replit has made OpenAI its default AI partner instead of Anthropic. OpenAI's ChatGPT will now be the default model on the platform.
How it works: The decision was made based on cost, performance, and partnership strength. Users can still manually choose to use Anthropic's models if they prefer.
Where it is available: This change applies to Replit's cloud-based software development platform, specifically powering the Replit Agent.
Example: Building vibe-coded applications from scratch.

What it is: Replit has transitioned its default model provider from Anthropic to OpenAI, making ChatGPT the default model for its platform.
How it works: Replit evaluated the models using internal and public benchmarks. The change was driven by performance, economics, and partnership strength, though the platform remains model-agnostic and still supports Anthropic models like Claude.
Where it is available: The change applies to Replit's cloud-based software development platform and specifically powers Replit Agent.
Example: Building vibe-coded applications from scratch, where models like Sol and Astra performed better in benchmarks.

The headline and explanation on this page are based on TechCrunch's post. The full details are in the original.

Replit makes OpenAI its default over Anthropic, CEO says