OpenAI Hostname Suggests New ChatGPT Feature 'Sonata'
🎵 OpenAI has started using new hostnames—sonata.openai.com and sonata.api.openai.com—spotted on 15–16 January 2026, suggesting work on a service codenamed Sonata. A new subdomain typically signals a web-facing product, internal tool, or API, but the codename alone doesn't confirm functionality. OpenAI recently improved ChatGPT's reference chat history retrieval and expanded dictation, which could align with audio or transcription enhancements.
