“Our response to the Axios developer tool compromise - OpenAI describes its response to a compromise involving the Axios developer tool, outlining security actions taken, investigation efforts, and mitigation steps to protect users and systems.”

OpenAI Responds to Axios Developer Tool Compromise #1 📝 OpenAI News Our response to the Axios developer tool compromise - OpenAI describes its response to a compromise involving the Axios developer tool, outlining security actions taken, investigation efforts, and mitigation steps to protect users and systems. #11 📝 Simon Willison Voice mode is weaker - Simon observes that OpenAI's voice mode appears to run on an older, weaker model, leading to surprising differences in capability depending on access point.

“OpenAI launched a new $100/month ChatGPT Pro tier offering 5× the Codex usage of Plus (boosted to 10× through May 31) for longer, high-effort sessions. It also includes all existing Pro features—exclusive Pro model access and unlimited Instant and Thinking models.”

#1 𝕏 OpenAI launched a new $100/month ChatGPT Pro tier offering 5× the Codex usage of Plus (boosted to 10× through May 31) for longer, high-effort sessions. It also includes all existing Pro features—exclusive Pro model access and unlimited Instant and Thinking models.

“#1 𝕏 OpenAI launched a new $100/month ChatGPT Pro tier offering 5× the Codex usage of Plus (boosted to 10× through May 31) for longer, high-effort sessions. It also includes all existing Pro features—exclusive Pro model access and unlimited Instant and Thinking models.”

#1 𝕏 OpenAI launched a new $100/month ChatGPT Pro tier offering 5× the Codex usage of Plus (boosted to 10× through May 31) for longer, high-effort sessions. It also includes all existing Pro features—exclusive Pro model access and unlimited Instant and Thinking models.

“OpenAI launched a new $100/month ChatGPT Pro tier offering 5× the Codex usage of Plus (boosted to 10× through May 31) for longer, high-effort sessions.”

OpenAI Introduces New $100 Pro Tier #1 𝕏 OpenAI launched a new $100/month ChatGPT Pro tier offering 5× the Codex usage of Plus (boosted to 10× through May 31) for longer, high-effort sessions. It also includes all existing Pro features—exclusive Pro model access and unlimited Instant and Thinking models.

“#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. #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

“Romain Huet live-demoed OpenAI’s Codex app—building a small game with Peter Yang and Alexander Embiricos—and underscored that as AI agents multiply, blurred roles (designers coding, engineers owning product) demand stronger judgment, taste, and user-centric insight.”

#12 in Romain Huet live-demoed OpenAI’s Codex app—building a small game with Peter Yang and Alexander Embiricos—and underscored that as AI agents multiply, blurred roles (designers coding, engineers owning product) demand stronger judgment, taste, and user-centric insight. #24 𝕏 Kevin Weil 🇺🇸 built a structured Codex skill on GPT-4 (5.4 Pro), adding more scaffolding to further improve its already strong performance.

“#4 𝕏 OpenAI launched the Safety Fellowship, awarding grants, expert mentorship, and community support to independent researchers focused on AI safety and alignment, aiming to cultivate the next generation of talent.”

#4 𝕏 OpenAI launched the Safety Fellowship, awarding grants, expert mentorship, and community support to independent researchers focused on AI safety and alignment, aiming to cultivate the next generation of talent.

“Alex and Romain demonstrate how the Codex team uses GPT 5.4, the Codex Spark model, and the Codex app’s plan mode—backed by an open-source Rust harness—to one-shot generate and iterate code features like a NASA Artemis iOS screen and a 2D game at up to 1,200 edits per second.”

#2 ▶️ How OpenAI's Codex Team Builds with Codex (43 Min) | Alex & Romain Peter Yang Alex and Romain demonstrate how the Codex team uses GPT 5.4, the Codex Spark model, and the Codex app’s plan mode—backed by an open-source Rust harness—to one-shot generate and iterate code features like a NASA Artemis iOS screen and a 2D game at up to 1,200 edits per second. The Codex team writes specs in under 10 bullet points when implementing new features, relying on Codex to handle most of the coding work. In “fast mode” with Codex Spark, live edits to a 2D game rendered at an average throughput of 1,200 code changes per second. The Codex app, VS Code extension, and CLI all communicate with the same open-source Rust-based harness, allowing multiple parallel agent tasks independent of a single workspace folder.

“#1 𝕏 Peter Yang reports that Claude subscriptions will no longer cover usage on third-party tools like OpenClaw, highlighting how both Anthropic and OpenAI currently lose money on power users.”

GenAI PM Daily April 04, 2026 GenAI PM Daily 🎧 Listen to this brief 3 min listen Today's top 17 insights for PM Builders, ranked by relevance from X, Blogs, and LinkedIn. Claude subscriptions will no longer cover usage on third-party tools like OpenClaw. #1 𝕏 Peter Yang reports that Claude subscriptions will no longer cover usage on third-party tools like OpenClaw, highlighting how both Anthropic and OpenAI currently lose money on power users. #16 in Peter Yang reports that Anthropic has blocked third-party harnesses like OpenClaw on Claude subscriptions, underscoring how both Anthropic and OpenAI are losing money on $100–200/month unlimited plans—and he predicts they’ll hike prices and tighten margins once they go public...

“OpenAI announced the acquisition of TBPN.”

#4 📝 OpenAI News Codex now offers pay-as-you-go pricing for teams - Codex introduced a new pay-as-you-go pricing option aimed at teams. The update provides more flexible billing to better match team usage patterns. #5 📝 OpenAI News OpenAI acquires TBPN - OpenAI announced the acquisition of TBPN. The post briefly describes the acquisition and its strategic intent for the company. #6 𝕏 OpenAI launched ChatGPT voice mode in CarPlay, bringing hands-free AI assistance to the road.