“Anthropic's Mythos model automatically discovered high-severity zero-day vulnerabilities in FFmpeg, OpenBSD, major browser engines, and the Linux kernel during internal testing.”

#5 ▶️ Claude Mythos is too dangerous for public consumption... Fireship Anthropic's Mythos model automatically discovered high-severity zero-day vulnerabilities in FFmpeg, OpenBSD, major browser engines, and the Linux kernel during internal testing. #4 𝕏 Claude launched a beta of Claude for Word, enabling drafting, editing, and revising documents directly from the sidebar with tracked changes and preserved formatting.

“#5 𝕏 DeepLearning.AI : An accidental leak exposed over 500,000 lines of Anthropic’s Claude agent code, revealing its modular tools, subagent swarms, and layered memory management.”

#5 𝕏 DeepLearning.AI : An accidental leak exposed over 500,000 lines of Anthropic’s Claude agent code, revealing its modular tools, subagent swarms, and layered memory management.

“An accidental leak exposed over 500,000 lines of Anthropic’s Claude agent code, revealing its modular tools, subagent swarms, and layered memory management.”

#5 𝕏 DeepLearning.AI : An accidental leak exposed over 500,000 lines of Anthropic’s Claude agent code, revealing its modular tools, subagent swarms, and layered memory management.

“DeepLearning.AI : An accidental leak exposed over 500,000 lines of Anthropic’s Claude agent code, revealing its modular tools, subagent swarms, and layered memory management.”

DeepLearning.AI : An accidental leak exposed over 500,000 lines of Anthropic’s Claude agent code, revealing its modular tools, subagent swarms, and layered memory management. #6 𝕏 Google Research introduced ConvApparel, a human-AI conversation dataset paired with an evaluation framework to quantify and bridge the “realism gap” in LLM-based user simulators, boosting the training of more robust conversational agents.

“Anthropic Scales Managed Agents #1 📝 Anthropic Engineering Scaling Managed Agents: Decoupling the brain from the hands - This article describes an approach to scale managed agents by separating decision-making (the 'brain') from execution (the 'hands'), enabling better scalability and modularity of agentic systems. #8 📝 OpenAI News Introducing the Child Safety Blueprint - OpenAI introduces the Child Safety Blueprint, a framework and set of practices aimed at improving child safety in products that use AI, including policies, tooling, and collaboration efforts.”

Today's top 25 insights for PM Builders, ranked by relevance from Blogs, X, YouTube, and LinkedIn. Anthropic Scales Managed Agents #1 📝 Anthropic Engineering Scaling Managed Agents: Decoupling the brain from the hands - This article describes an approach to scale managed agents by separating decision-making (the 'brain') from execution (the 'hands'), enabling better scalability and modularity of agentic systems. It outlines architectural patterns for building managed-agent platforms. #2 📝 OpenAI News The next phase of enterprise AI - OpenAI announces the next phase of its enterprise AI strategy, describing initiatives to accelerate adoption of advanced AI capabilities across businesses and enterprises. #3 𝕏 Sundar Pichai announced Notebooks are now rolling out in the Gemini app for Google AI Ultra, Pro, and Plus web subscribers, letting users organize conversations, notes, and project sources. The feature integrates with NotebookLM for seamless deep dives. #4 𝕏 Philipp Schmid rolled out Flex and Priority `service_tiers` for the Gemini API—Flex inference (`service_tier="flex"`) cuts costs by 50% on latency-tolerant workloads, while Priority (`service_tier="priority"`) guarantees low-latency with automatic fallback to Standard, all vi... #5 𝕏 AI at Meta unveiled Muse Spark, a multimodal model built from the ground up to integrate visual and textual data for richer AI understanding. #6 𝕏 Sundar Pichai announces that Gemma 4 has exceeded 10 million downloads in its first week, pushing total Gemma model downloads past 500 million, and shares excitement to see what users build next. Also covered by: @Santiago #7 ▶️ Google just casually disrupted the open-source AI narrative… Fireship Google’s Gemma 4 is a 31 billion-parameter, Apache 2.0-licensed open-source LLM that runs locally in 20 GB on an RTX 4090 by using TurboQuant and per-layer embeddings for compression. Gemma 4 big model (31 B parameters) downloads in 20 GB and delivers ~10 tokens/sec on a single RTX 4090, while its Edge variant can run on a phone or Raspberry Pi. TurboQuant compresses model weights by converting Cartesian data to polar coordinates and applying the Johnson–Lindenstrauss transform to quantize values to single sign bits while preserving distances. Models named E2B and E4B use “effective parameters” via per-layer embeddings, giving each transformer layer its own token embedding to introduce information exactly when needed. Also covered by: @Santiago #8 📝 OpenAI News Introducing the Child Safety Blueprint - OpenAI introduces the Child Safety Blueprint, a framework and set of practices aimed at improving child safety in products that use AI, including policies, tooling, and collaboration efforts. #9 📝 Simon Willison Meta’s new model is Muse Spark, and meta.ai chat has some interesting tools - Meta announced Muse Spark, a hosted model (not open weights) available to try on meta.ai though the API is currently a private preview; Simon explores the model and the meta.ai chat tools. The post links to Meta's announcement and discusses access and features. #10 𝕏 claire vo 🖤 shares the exact OpenClaw settings from @steipete that plugged her GPT-5.4 reasoning leaks for productivity and coding. She notes it still feels “caveman-y” but points PM Builders to the docs for full config details. #11 𝕏 LlamaIndex 🦙 breaks down two production-crippling OCR failures—repetition loops that spiral into infinite whitespace and resource drain, and recitation errors where safety filters block valid text—and details the distinct root causes and engineered fixes for each. #12 ▶️ I built a custom Slack inbox. It was easier than you think. | Yash Tekriwal (Clay) How I AI Podcast Yash Tekriwal used OpenClaw in Discord and Perplexity Computer to transform 100–150 daily Slack notifications into a prioritized Kanban-style dashboard with three colored columns and an “archive all” button that clears FYIs in both the UI and Slack. Processes ~100–150 daily Slack mentions by querying Slack’s API for unread streams, grouping into four buckets (DMs, group mentions, threads, app mentions) and three priority levels (“action required,” “need to read,” “FYI”), reducing actionable items to ~30–40. Perplexity Computer orchestrates tasks in parallel—using Sonnet 4.6 for digest fetching, Gemini for planning and Python coding, and Opus for intensive reasoning—and deploys the UI via native connectors to Slack, Gmail, Notion, Asana, Zoom, and others. The green “FYI” column includes a single “archive all” button that simultaneously archives messages in the Perplexity Computer dashboard and marks them read in Slack, automating bulk notification management. Also covered by: @Claire Vo #13 𝕏 clem 🤗 tested Anthropic’s showcased vulnerabilities on eight cheap open-weight models (3.6B–5.1B parameters), all detecting Mythos’s flagship FreeBSD exploit (3.6B model at $0.11/1M tokens) and recovering the chain of a 27-year-old OpenBSD bug. #14 𝕏 Santiago rolled out Architect, a system builder that generates multi-agent AI setups from simple use-case descriptions. Try it now at https://t.co/b5ZG8CJXKG in partnership with @lyzr__ai. #15 𝕏 DeepLearning.AI launched a free course, Efficient Inference with SGLang: Text and Image Generation, teaching how to reduce LLM inference costs using KV cache and RadixAttention and apply the same speedups to image generation. #16 𝕏 Peter Yang warns that “all-you-can-use” AI subs like Claude Max and ChatGPT Pro aren’t sustainable, offering a deep dive into why Anthropic cut off OpenClaw, how to run local models on your Mac, and on-the-ground AI trends in China. #17 𝕏 Harrison Chase argues memory should live outside model providers—open harness = open memory—to prevent vendor lock-in and fuel innovation in stateful agents. #18 ▶️ Claude Mythos: Highlights from 244-page Release AI Explained The video highlights that Anthropic’s Claude Mythos preview outperforms Opus 4.6 by 25% on the SWEBench Pro coding benchmark, achieves 93% UI element detection accuracy using Python tools, and uncovers zero-day exploits like a 27-year-old OpenBSD crash bug. Claude Mythos preview beats Opus 4.6 by 25% on the SWEBench Pro software engineering benchmark. Nicholas Carini used Mythos to find a 27-year-old OpenBSD crash bug and Linux user-to-administrator privilege escalation vulnerabilities with no user permissions. Claude Mythos preview scored almost 93% at identifying UI elements occupying less than 0.1% of the screen area in high-resolution professional desktop application screenshots using adaptive thinking, maximum effort, and Python tools, 10% above Opus 4.6. #19 𝕏 AI at Meta shows that scaling up parallel collaborative agents at inference time lets you tackle harder reasoning tasks without a big latency hit. #20 𝕏 Sebastian Raschka : GLM-5.1, built on a DeepSeek-V3.2-like architecture with MLA and DeepSeek Sparse Attention plus extra layers, debuts as the new flagship open-weight model. #21 𝕏 Teresa Torres debunks date-driven feature roadmaps as false certainty that erodes trust, and shows how combining a Now-Next-Later format with opportunity solution trees balances team flexibility with stakeholder visibility. #22 𝕏 Guillermo Rauch says the web—supercharged by AI and maturing low-level APIs like WebGPU, WebAssembly, and HTML in Canvas—will shatter performance limits and become everyone’s IDE. He predicts generative UI (AGUI) will turn every link into a personalized, real-time experience. #23 𝕏 Mustafa Suleyman argues AI scaling remains exponential—training data has surged 1 trillion× since 2010 to deliver 12-hour autonomous agents, with roughly another 1,000× compute boost ahead—so fears of an AI ceiling are unfounded. #24 in Marc Baselga calls Anthropic a top choice for PMs, citing its 10× growth from $1 B to $30 B ARR in 15 months and world-class talent density likened to “playing for Real Madrid. #25 𝕏 Logan Kilpatrick launched the new Projects feature in GeminiApp, introducing NotebookLM-inspired notebooks for an interactive, document-style project experience. Found this valuable? Share it with another PM - they can subscribe at genaipm.com Unsubscribe • Switch to Weekly

“Anthropic published a detailed technical report on software vulnerabilities and exploits uncovered in Claude Mythos Preview, outlining the specific flaws, attack vectors, and mitigation strategies.”

#1 𝕏 Anthropic published a detailed technical report on software vulnerabilities and exploits uncovered in Claude Mythos Preview, outlining the specific flaws, attack vectors, and mitigation strategies. Also covered by: @Anthropic , @Boris Cherny , @Greg Isenberg , @Simon Willison

“Anthropic signed deals with Google and Broadcom to secure multiple gigawatts of next-generation TPU capacity—coming online in 2027—to train and serve its frontier Claude models. Also covered by: @Lenny Rachitsky”

Anthropic Signs Google and Broadcom TPU Capacity Deal #1 𝕏 Anthropic signed deals with Google and Broadcom to secure multiple gigawatts of next-generation TPU capacity—coming online in 2027—to train and serve its frontier Claude models. Also covered by: @Lenny Rachitsky

“Anthropic’s growth team launches CASH (Claude Accelerates Sustainable Hypergrowth) using Claude with Opus 4.6 to fully automate growth experimentation—from opportunity identification to post-launch analysis—achieving junior PM-level win rates on copy and UI tweaks.”

#12 ▶️ Head of Growth (Anthropic): “Claude is growing itself at this point” Lennys Podcast Anthropic’s growth team launches CASH (Claude Accelerates Sustainable Hypergrowth) using Claude with Opus 4.6 to fully automate growth experimentation—from opportunity identification to post-launch analysis—achieving junior PM-level win rates on copy and UI tweaks. Anthropic’s ARR jumped from $1 billion at the start of 2025 to $19 billion by February 2026 (10× YoY growth), hitting $4 billion mid-2025 and $9 billion end-2025—a $18 billion increase in 14 months. CASH was initiated a few months ago but only began delivering reliable results after upgrading from Opus 4.5 to Opus 4.6, automating four stages of growth work (opportunity ID, build, QA/brand compliance, and analysis). Co-work’s desktop app runs a scheduled task each morning on ~20–25 Hex chart links and Slack MCP transcripts, then uses Claude to summarize top concerns and insights in Slack.

“#1 in Udi Menkes warns that Anthropic is ending third-party Claude integrations and now requires separate API keys—a clear market signal.”

Anthropic Announces Separate API Keys for Third-Party Engines #1 in Udi Menkes warns that Anthropic is ending third-party Claude integrations and now requires separate API keys—a clear market signal. #2 𝕏 Sebastian Raschka outlines the essential building blocks for coding agents—repo context ingestion, tool integration (e.g., linters and debuggers), layered memory, and task delegation—to show how to architect autonomous, context-aware developer assistants.

“Udi Menkes warns that Anthropic is ending third-party Claude integrations and now requires separate API keys—a clear market signal.”

Anthropic Announces Separate API Keys for Third-Party Engines #1 in Udi Menkes warns that Anthropic is ending third-party Claude integrations and now requires separate API keys—a clear market signal.