Overview
- ChatGPT in Xcode now defaults to OpenAI’s GPT-5, with a choice between the standard model for speed and a “GPT-5 (Reasoning)” option for tougher tasks.
- Developers can link paid Anthropic accounts directly within the Intelligence settings to use Claude Sonnet 4 inside Xcode.
- Users may still opt for GPT-4.1 or bring other providers via API keys, as well as run local models on Apple silicon Macs.
- Early, anecdotal tests reported Claude handling some coding changes more reliably, while some users saw GPT-5 timeouts and short conversation limits.
- Community observers describe this as likely the final developer beta before the official Xcode 26, SDK, and OS releases.