Anthropic Revokes OpenAI's Access to Claude
9 months ago
- #AI
- #API
- #Competition
- Anthropic revoked OpenAI’s API access to its models due to violations of terms of service.
- OpenAI was using Claude’s API to benchmark and improve its own AI models, including GPT-5.
- Anthropic’s terms prohibit using its services to build competing products or reverse-engineer them.
- OpenAI claims it’s standard practice to evaluate competitors’ AI systems for benchmarking and safety.
- Anthropic stated it would still allow OpenAI API access for benchmarking and safety evaluations.
- Revoking API access from competitors is a common tactic in the tech industry (e.g., Facebook vs. Vine).
- Anthropic previously restricted API access to AI startup Windsurf over rumors of an OpenAI acquisition.
- Anthropic recently imposed new rate limits on Claude Code due to high usage and ToS violations.