Anthropic released Claude Opus 4.8 yesterday, and from the announcement it looks like a solid upgrade over 4.7. Here s what stood out to me:
Better judgment on agentic tasks early testers say it catches its own mistakes, pushes back on bad plans, and flags uncertainties instead of bulldozing through
~4x less likely to let code flaws pass unremarked compared to Opus 4.7
Dynamic Workflows in Claude Code can now orchestrate hundreds of parallel subagents for codebase-scale migrations
Effort control you can now choose how hard the model thinks on each response (from fast/light to max effort)
Fast mode is 3x cheaper than it was for previous models
Same pricing as Opus 4.7: $5/M input, $25/M output
Classic Minesweeper – but every cube has up to 26 neighbors instead of 8. Built from scratch in Three.js as a solo hobby project.
🧠 Logic Solver – explains every move in plain language
🎲 No-Guess boards – solvability verified before you start
🔍 Sub-region mode – isolates independent logical zones on large grids
📱 Pure browser – no download, no account, no ads
Free. Always will be. ☕ What level breaks you first?
