Anthropic / Release briefing
Claude Opus 5.5 is cheaper, but check your integrations first
Claude Opus 5.5 lowers API prices but changes tool calls and thinking. Review migration risks and a practical pilot before upgrading.
Read the briefingThe Mimir journal / AI Briefing
What changed.
What it means for your work.
Sourced updates on artificial intelligence, with the cost, constraints and practical decisions kept in view.
Primary sources. Clear dates. Vendor claims distinguished from our advice.