Anthropic says OpenAI staff used Claude Code ahead of GPT-5 launch and it will continue providing API access to OpenAI for benchmarking and safety evaluations (Mayank Parmar/BleepingComputer)

Mayank Parmar / BleepingComputer:
Anthropic says OpenAI staff used Claude Code ahead of GPT-5 launch and it will continue providing API access to OpenAI for benchmarking and safety evaluations  —  Anthropic says it has revoked OpenAI's access to the Claude API after ChatGPT's engineers were found using Claude's coding tools.