Physix Frontier · News Briefing Card (TechCrunch · Oct 18, 2026)

Replit drops Anthropic models, OpenAI becomes default

KEY FACTS

Replit's CEO announced at TechCrunch Disrupt that the company will no longer partner with Anthropic.
Replit already struck a partnership with OpenAI in August of this year, and ChatGPT is now the default model.
The CEO said the decision was based on three factors: cost, partnership, and performance.
Users can still manually select Anthropic models, but the default setting has changed.
Replit's enterprise revenue share was 2% last year and rose to 15% this year.

KEY DATA

2%Enterprise revenue share (last year)

15%Enterprise revenue share (this year)

over 50%B2B revenue share

PHYSIX OBSERVATION

Replit's move to drop Anthropic as its default model looks like a trade-off between performance and cost, but it actually exposes the bargaining power AI coding platforms hold over model suppliers. Default means traffic; OpenAI has captured the entry point, and Anthropic may lose an important customer. However, insiders deny the partnership has ended, and the contradictory information is worth watching.

Source: TechCrunch report