Anthropic bans OpenAI’s access to Claude due to ToS violation August 2, 2025 by admin Tweet Anthropic has revoked OpenAI's access to the Claude API after learning that it was being misused in a way that violated its terms of service. Read more… Neowin Related Posts:Anthropic cuts off Windsurf's Claude 3.x access:…Anthropic releases Claude 3 Haiku for Claude Pro subscribersAnthropic rolls out Claude 2 AI to users in 95 countriesMicrosoft explores Anthropic AI to reduce OpenAI dependenceAnthropic's Claude just got smarter on several cloud…