Replit Makes OpenAI Default Over Anthropic — SkimNews
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- Replit CEO Amjad Masad announced at TechCrunch Disrupt that OpenAI's ChatGPT is now the platform's default model, citing cost, performance, and the strength of the OpenAI partnership over Anthropic.
- Masad said Replit's internal benchmarks show OpenAI's Sol and Astra models outperform on building vibe-coded applications "from scratch," while emphasizing Replit remains "model agnostic" with Claude still available to users.
- Anthropic insiders disputed Masad's framing, telling TechCrunch the partnership remains "in place" — even as Replit had been promoting Claude products including Fable 5, Fable 5.1, and Opus 5.5 on its blog and social channels as recently as late September.
- Replit had been a top-five Anthropic customer until recently, and since most users stick with the default rather than picking models themselves, the switch could meaningfully reduce Anthropic revenue from the platform.
- Replit's enterprise share jumped from roughly 2% of revenue last year to about 15% this year, with more than 50% now B2B; Masad projected over half of revenue will come from enterprise and government contracts by 2027.
Why it matters: Replit had been a top-five Anthropic customer until recently, and since most users stick with the default rather than selecting models themselves, making OpenAI the default could materially shrink Anthropic's revenue from the platform while handing OpenAI a high-profile developer-tools endorsement.
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