Claude API no longer bills requests that return stop_reason refusal without generated output.

Refusals without output no longer carry request cost, so refusal handling belongs in billing-aware API paths.

This sits with Streaming refusals guidance: detect stop_reason refusal and handle zero-output refusals separately from generated responses.

• 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.