Anthropic has revoked OpenAI's access to its Claude API after discovering that OpenAI engineers were using Claude's coding tools, known for their effectiveness in creating web apps and performing infrastructure-related tasks. With the launch of GPT-5 imminent, it's speculated that Claude Code may have been utilized to enhance GPT-5's coding capabilities.

Anthropic is developing a web version of Claude Code to compete with OpenAI's Codex, allowing developers to access a coding agent directly through a browser. The new version will feature GitHub integration and managed sandboxes for safe code execution, aiming to streamline the coding process and enhance collaboration for both individual developers and teams. Although there is no confirmed release date, development is progressing rapidly.