Large language models, generative AI, machine learning research, and the real-world impact of AI on jobs, creativity, and society.
10 posts
Opus 5 costs 2.5x what Sonnet 5 does. We break down real pricing, benchmarks, and monthly costs across three usage profiles so you know exactly which Claude model is worth paying for.
This question changed on September 18, 2026: Anthropic folded Cowork into Chat. Here's what merged, what didn't, and how to decide between Claude and Claude Code now.
AI guardrails are the rules and technical checks that keep an AI system from doing things it shouldn't — answering a question it has no business answering, leaking private data, or getting talked into ignoring its own instructions. If you've run into that term alongside others like "prompt injection," "jailbreak," or "RLHF" and felt like everyone else in the room already knew what they meant, this page is for you. This glossary defines guardrails and the vocabulary that travels with them, in one place, so you're not piecing it together from ten different vendor blog posts.
Claude Fable 5, fully explained and updated: the export ban, the comeback, current pricing — and whether Opus 5 makes it worth paying double for anymore.