Anthropic publicly documented stop_details on refusal responses, with category and explanation fields for routing.

Refusals now carry machine-readable class and human-readable reason, letting apps choose the right next step.

For builders handling refusals, this moves refusal routing into documented response fields without a beta header.

• Jul 26, 2026OpenAI updated GPT-5.5 Instant to improve conversational quality in decision, advice, planning, research, and shopping tasks.
• Jul 25, 2026Enterprise and Edu users can find skills under Plugins, on the Skills tab in the Plugin Directory.
• Jul 25, 2026Anthropic removed modelcard language for Claude Fable 5 and Claude Mythos 5.

This is the world we build in. It moves this fast. We move with it.