Why CEREBRO kept it

Opus 5.5 best practices guide from recognized expert

Backlinks

Appeared in 1 briefing

• 2026-09-26

Related

Shares tags: ai/agents · ai/llm-mechanics · cerebro/signal · release-notes

• Opus 5.5 is a really good model. It's been my daily driver the last few weeks. We had Opus 5.5 and Fable 5.1 each port HAProxy from C to Rust. Both passed nearly all of HAProxy's tests, but Opus 5.5x · 2026-09-26
• v2.1.274rss · 2026-09-23
• Which tools do Claude, Codex and Cursor choose? We measured 17k runs to find outhackernews · 2026-09-04
• Claude Fable 5.1rss · 2026-09-03
• Fable 5.1 World Modelinghackernews · 2026-09-03
• (AINews) Claude Fable/Mythos 5.1: new SOTA model, 75% cache price cut but 70% more output tokensrss · 2026-09-03

Also from x.com

• Benching this to get exact numbers on how it performs. So far, it's basically just a DeepSeek 4.1 flash router 🙃 https://t.co/LolRovIeEhx · 2026-09-26
• Jev is incredible. I'm scared people are using it wrong. https://t.co/zapsXQn8oux · 2026-09-26
• RT @daradoescode: they silently nerfed t3 code. this shit used to be so good it made me buy more computers to run more agents and now my limits run out faster now they're working on orchestrator v2x · 2026-09-26
• I go in depth on this in my video about Jev. In most cases, routing to a 'dumber' model halfway through a task is not going to save much money. Cache writes are such a massive % of cost anyways. Ugh.x · 2026-09-26
• Introducing typesafe/jev-router: a cache-aware model router powered by Jev and @typesafeai The Jev Router picks the best model and reasoning effort for each request, balancing quality, speed, and cosx · 2026-09-26
• Your Mac is slowing you down. Moving to Linux has exponentially improved performance for my agents, in particular on the file system side. https://t.co/7H5EeCubpCx · 2026-09-26