Opus 4.8 is live. Benchmarks especially significant jump in Agentic coding, but more important: „Fast mode is available for Opus 4.8. It's the same model at roughly 2.5x the speed, and we've made it three times cheaper than before.“
AGENTS
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Behavior change in AI: plans, recovers errors, creative, feels senior
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Benchmarks are great, but IMO the behavior change is a much bigger deal. Plans before it edits, recovers from its own errors, and finds creative ways around obstacles instead of stalling. Feels much more like a senior engineer than 4.7, and better at long-horizon work.
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New Claude features: fast mode, dynamic workflows, effort controls
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Also shipping today:
• Fast mode for Opus 4.8 – 2.5x faster, 3x cheaper vs 4.7
• Dynamic workflows in CC – hundreds of parallel subagents in one session, and verifies its own work • Effort controls on http://
claude.ai – choose how much effort Claude puts into a query -
Opus 4.8: our smartest model, best for coding and agents.
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Opus 4.8 is here! It's our smartest Opus model to date, and the best GA model for coding and agents.
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Experimenting with Event Sourced Agent Runtime
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experimenting with a new event sourced agent runtime that i made 🙂
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New LangChain Academy Course on Scaling Deep Agent Deployment
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New LangChain Academy Course: Intro to LangSmith Deployment
— LangChain (@LangChain) 28 mai 2026
In this course, you’ll learn how to scale a single-user desktop Deep Agent all the way to a multi-tenant deployment running on managed, elastic infrastructure. pic.twitter.com/pFXZRhTZDHNew LangChain Academy Course: Intro to LangSmith Deployment In this course, you’ll learn how to scale a single-user desktop Deep Agent all the way to a multi-tenant deployment running on managed, elastic infrastructure.
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AI Self-Improving Agent Outperforms Karpathy’s Autoresearcher
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Esa gráfica es clave. Se ve claramente el momento en el que el self-improving agent se despega del autoresearcher de Karpathy y ya no baja
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AI Agentic Systems Hallucination Compliance Framework
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Important post for entrepreneurs from @a16z yesterday and a look at a new system that ensures AI agentic systems don't hallucinate their way into compliance hell.
— Robert Scoble (@Scobleizer) 28 mai 2026
"The value comes less from the underlying model’s raw capability (though that’s still important!) than from the… https://t.co/tmh6mxv3fc pic.twitter.com/9pgzceZNZMImportant post for entrepreneurs from @a16z yesterday and a look at a new system that ensures AI agentic systems don't hallucinate their way into compliance hell. "The value comes less from the underlying model’s raw capability (though that’s still important!) than from the
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Standardized Agent Harnesses Drive Managed Services Growth
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As agent harnesses become more standardized, we’re going to see a lot more “managed agent services”
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Perplexity Computer now helps prepare federal tax returns
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https://t.co/b774dXzDJ7 https://t.co/NeC9DfB4rI
— Aravind Srinivas (@AravSrinivas) 28 mai 2026Perplexity Computer can now help prepare your federal tax return. Select “Navigate my taxes” on Computer to give it a shot.