Claude Opus 5 adds five effort levels and defaults to reasoning on
rohanpaul_ai · x · 2026-07-25
Claude Opus 5 is being described as effectively five models behind one endpoint, with effort levels of low, medium, high, xhigh, and max.
Key points from the post:
- Reasoning is on by default
- The effort setting controls how deeply the model thinks
- Lower settings aim to preserve quality while cutting tokens and latency
- max is meant for the deepest reasoning and longer agent tasks
- This may simplify developer routing because teams may no longer need to swap between cheap and premium reasoning models as often
Related event: Anthropic Releases Claude Opus 5: SOTA Performance at Half the Price(128 posts)→
More from coding & agent
- Agent Field Kit launches $29 security runbooks for production AI agents — alvelda · 2026-10-27
- Dev mixes Claude specs with abliterated GLM to build SS7 threat detector — l4rz · 2026-10-27
- Cloudflare Durable Objects validated as top architecture for AI agent WebSocket servers — tristanbob · 2026-10-27
- GitHub Next's Chopin prototype explores real-time multiplayer agentic planning — max__drake · 2026-10-27
- Veynod: An Open-Source Shared Workspace Where AI Agents Collaborate Like a Team — TKOWNS · 2026-10-27
- TMLR paper: enforced thinking doesn't reliably make LLM agents disclose key info to users — SharonYixuanLi · 2026-10-27