OpenAI is rolling out ads for users on Free and Go plans in the UK.

The free tier now functions as a subsidized entry point while paid tiers maintain a clean interface.

This shift introduces a monetization layer to the base model experience for non-paying users in specific regions.

• Jun 06, 2026Anthropic updated prompt caching to automatically read from the longest previously cached prefix when breakpoints are set.
• Jun 06, 2026Anthropic optimized prompt caching support in the Message Batches API to improve cache hit rates.
• Jun 06, 2026Anthropic added a delete endpoint to the Message Batches API for managing batch processing tasks.

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