Claude Opus 4.8: Here is Everything that Changed

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Checkout the AI Learning paths: https://jb.gg/academy/aws-ai-paths In this video I break down Anthropic’s Claude Opus 4.8 release, which they frame as an incremental upgrade over 4.7 but optimized for long-running tasks. I walk through the key new features: dynamic workflows that can spawn hundreds of parallel sub-agents for verifiable work like large code migrations, the return of manual effort control (low to max) replacing adaptive thinking, and a Messages API update that lets developers modify system instructions mid-task without breaking prompt cache. I also cover benchmark highlights and why the harness used can change results, discuss pricing (still $5/M input and $25/M output) plus a big Fast Mode price drop (2.5x speed, now 3x cheaper), and run quick claude.ai tests at different effort levels. I close with thoughts on faster release cycles and a hint about Mythos reaching more customers soon. LINKS: https://www.anthropic.com/news/claude-opus-4-8 Prompt Caching Video: https://youtu.be/HDMqDV7mmGo Harnes Engineering: https://youtu.be/uY9tMU-KS4A https://www.youtube.com/@JetBrainsAcademy My voice to text App: whryte.com Website: https://engineerprompt.ai/ RAG Beyond Basics Course: https://prompt-s-site.thinkific.com/courses/rag Signup for Newsletter, localgpt: https://tally.so/r/3y9bb0 Let's Connect: 🦾 Discord: https://discord.com/invite/t4eYQRUcXB ☕ Buy me a Coffee: https://ko-fi.com/promptengineering |🔴 Patreon: https://www.patreon.com/PromptEngineering 💼Consulting: https://calendly.com/engineerprompt/consulting-call 📧 Business Contact: engineerprompt@gmail.com Become Member: http://tinyurl.com/y5h28s6h 💻 Pre-configured localGPT VM: https://bit.ly/localGPT (use Code: PromptEngineering for 50% off). Signup for Newsletter, localgpt: https://tally.so/r/3y9bb0 00:00 Opus 4.8 Overview 01:15 Benchmarks and Behavior 02:36 New Features Breakdown 04:28 Mythos and Pricing 06:12 Sponsor Segment 08:06 Benchmark Harness Matters 09:11 Dynamic Workflows D

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