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Today's digest · Friday, May 29

The 22 things in AI/dev today.

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Stories
22
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#1 / TODAY
Latent Space·1 min·5d agoFREE

[AINews] Anthropic raises $965B Series H, releases Opus 4.8 and Dynamic Workflows/ultracode

Anthropic raised $965B in Series H funding and released Opus 4.8, a frontier model with improved reasoning and coding capabilities. The company also launched Dynamic Workflows/ultracode, a tool for building complex AI workflows. This positions Anthropic as a dominant force in AI, challenging competitors like OpenAI.

Anthropic's massive funding and Opus 4.8 release solidify its position as a top-tier AI provider, pressuring competitors.

anthropicopus-4.8fundingworkflows
latent.space
[AINews] Anthropic raises $965B Series H, releases Opus 4.8 and Dynamic Workflows/ultracode
Provably Secure Agent Guardrail
#2 / TOP STORY
arXiv cs.AIFREE

Provably Secure Agent Guardrail

Researchers propose a new security paradigm for AI agents, introducing the executable Proof-Constrained Action (ePCA) framework. This neural symbolic isolation architecture forces agents to formalize intentions into first-order logical constraints before acting, achieving zero attack success in adversarial tests against semantic symbol decoupling attacks.

Scaling Monosemanticity: Extracting Interpretable Features from Claude 3 Sonnet
#3 / TOP STORY
arXiv cs.AIFREE

Scaling Monosemanticity: Extracting Interpretable Features from Claude 3 Sonnet

Researchers trained sparse autoencoders with up to 34 million features on Claude 3 Sonnet's middle layer, extracting interpretable features that are multilingual, multimodal, and causally influence model outputs. Features include deception, power-seeking, and bias, enabling steering of model behavior.

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// Today19 stories

Claude Opus 4.8: "a modest but tangible improvement"

Developers may experience slightly improved reliability and reduced error rates when integrating Claude Opus 4.8 into their applications, potentially streamlining development workflows.

claudeanthropicllmai-models
Simon Willison5d ago1mFREE

llm-anthropic 0.25.1

Accurate token counting helps developers manage costs and debug API usage more effectively.

llmanthropicclitoken-counting
Simon Willison5d ago1mFREE

[AINews] Cognition raises $1B in $26B Series D

Cognition's massive funding signals that AI coding agents are becoming a major investment focus, potentially reshaping developer workflows.

cognitiondevinfundingai-coding
Latent Space6d ago1mFREE
// Yesterday43 stories