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105 sources in the directory · Latest publication in this list: 2026-07-21 09:00 UTC.

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2026-07-21

Show HN: AI chat exporter – Save chat to pdf or word

AI Chat Exporter is a Chrome extension that exports conversations from ChatGPT, Gemini, Claude, and Grok to PDF, Word, Google Docs, and Notion. It offers font customization, selective message export, and format preservation. The free plan includes 7 full conversation exports and 10 selected message exports per month.

Hacker News AIAgentsIn-site articleShow HN: AI chat exporter – Save chat to pdf or word
Was Hugging Face Breached by AI Agents?

Hugging Face suffered a real breach where an autonomous AI agent system gained unauthorized access to internal datasets and credentials, highlighting a new cybersecurity threat from self-operating AI agents that can attack 24/7 without human intervention.

Hacker News AIAgents / ResearchIn-site articleWas Hugging Face Breached by AI Agents?
Meta Open-Sources Astryx: An Agent-Ready React Design System With 150+ Accessible Components, Seven Themes, and a CLI

Meta has open-sourced Astryx, its internal React design system used across 13,000+ apps for eight years. It offers 150+ accessible components, seven themes, dark mode, and an agent-ready CLI under the MIT license. Requires React 19+.

MarkTechPostAgentsIn-site articleMeta Open-Sources Astryx: An Agent-Ready React Design System With 150+ Accessible Components, Seven Themes, and a CLI
Wire AI: An AI Native growth engineer for Mobile apps

Wire AI is an AI-native growth tool for mobile apps that personalizes user journeys through A/B testing to improve activation and retention. It offers a risk-free pricing model: don't pay if it doesn't improve activation.

Hacker News AIAgents / StartupsIn-site articleWire AI: An AI Native growth engineer for Mobile apps
Show HN: AI Song – turn prompts or lyrics into complete songs

AI Song Generator lets users turn any idea, lyric, or mood into a full song. It supports natural language prompts, allows customization of melody, arrangement, rhythm, and voice. Features include text-to-song, lyrics-to-song, private studio, and commercial use options. Pricing starts at $9.99/month. Suitable for video creators, game developers, marketers, and songwriters.

Hacker News AIToolsIn-site articleShow HN: AI Song – turn prompts or lyrics into complete songs
AI Breakthroughs Guide: The Ultimate Overview of July 2026 Innovations

In 2025, AI writing services evolved from fringe tools to core productivity. This article explores the latest breakthroughs, including multimodal generation, real-time collaboration, and ethical frameworks, analyzing how they reshape content creation.

Hacker News AIModelsIn-site articleAI Breakthroughs Guide: The Ultimate Overview of July 2026 Innovations
Chinese open-weight models are cheap. Washington is deciding what that costs.

US policymakers are debating whether to create regulatory risk around Chinese open-weight models. The release of Moonshot AI's Kimi K3 reignited the argument. Enterprises face not just performance questions but whether these models will remain easily accessible in a year.

Artificial Intelligence NewsModels / PolicyIn-site articleChinese open-weight models are cheap. Washington is deciding what that costs.
NVIDIA Releases Cosmos 3 Edge: A 4B-Parameter Open World Model That Reasons and Generates Robot Actions On-Device

NVIDIA has released Cosmos 3 Edge, a 4-billion-parameter open world model built to run on-device. It helps robots and vision AI agents understand surroundings, reason in real time, and generate robot actions locally. The Cosmos 3 family included Cosmos 3 Nano (16B) and Cosmos 3 Super (64B) shipped on May 31, 2026 at GTC Taipei. Edge is the third and smallest tier, at roughly one-sixteenth the size of Super. The problem is specific. Machines operate at the edge in factories, warehouses, and hospitals. They need data center–level performance on memory-constrained systems. Cosmos 3 Edge targets that gap. What does world model do here? A world model learns how an environment changes over time. It represents objects, motion, spatial relationships, and the effects of actions. Consider a robot r…

MarkTechPostModels / Agents / ChipsIn-site articleNVIDIA Releases Cosmos 3 Edge: A 4B-Parameter Open World Model That Reasons and Generates Robot Actions On-Device
Paraphraser AI – a rewriter with controls for meaning, tone, and keywords

Paraphraser AI is a smart rewriting tool that preserves original meaning while allowing adjustments in tone and keywords, suitable for academic, SEO, email, and more. Free users get 500 words daily; Pro offers more features.

Hacker News AIToolsIn-site articleParaphraser AI – a rewriter with controls for meaning, tone, and keywords
ANSI escape injection in MCP servers: Hidden from humans, visible to AI

ANSI escape sequences can be used to hide instructions from human reviewers while remaining visible to AI agents, enabling injection attacks. This article covers two attack variants (direct-fetch and stored AESI) and how DAST can automatically detect them.

Hacker News AIAgentsIn-site articleANSI escape injection in MCP servers: Hidden from humans, visible to AI
China's AI models have Trump's AI world at war with itself

The release of Chinese open-source AI model Kimi has triggered a public feud within Trump's AI advisor circle. Kimi rivals the intelligence of paid models from OpenAI and Anthropic but is free, creating economic and political problems for the president. Factions disagree on whether to embrace open source or impose tighter controls.

Hacker News AIModels / StartupsIn-site articleChina's AI models have Trump's AI world at war with itself
Aymo AI

An all-in-one AI platform for teams, designed to enhance collaboration and productivity through artificial intelligence.

Product Hunt AIToolsIn-site articleAymo AI
Show HN: SteerPlane – open-source runtime guardrails for AI agents

SteerPlane is an open-source runtime guardrail tool that integrates with one line of code, providing loop detection, cost ceilings, policy enforcement, and real-time monitoring for AI agents.

Hacker News AIAgentsIn-site articleShow HN: SteerPlane – open-source runtime guardrails for AI agents
Sider 6.0

Discussion | Link

Product Hunt AIAgentsSource content · Analysis pendingSider 6.0
Storybook: AI MCP

Storybook introduces AI integration using MCP tools, enabling AI agents to generate UI from existing components with automated test feedback via Storybook Test to ensure quality and consistency.

Hacker News AIAgentsIn-site articleStorybook: AI MCP
Nine to axe 30 jobs at the Age and SMH due to ‘extreme’ AI disruption

Australia’s biggest media company, Nine Entertainment, has blamed the “extreme state of disruption” from AI for its decision to cut another 30 newsroom jobs at the Sydney Morning Herald and the Age. On Tuesday, the managing director of publishing, Tory Maguire, told staff the company was looking to cut “around 30” positions, made up of voluntary and targeted redundancies. Maguire said the exercise was not simply a matter of cutting costs, but was an “evolution” to adapt to structural change.

The Guardian AIToolsIn-site articleNine to axe 30 jobs at the Age and SMH due to ‘extreme’ AI disruption
Learn any AI tool in 15 min sessions

A platform offering quick AI training sessions for professionals, allowing them to learn any AI tool in just 15 minutes.

Hacker News AIToolsIn-site articleLearn any AI tool in 15 min sessions
Show HN: Calyxa – Browser Native AI tutor solving the "cheating" problem

Calyxa is a browser-native AI tutor that helps students learn directly on homework websites and PDFs, eliminating the need to copy-paste problems into separate chats. It provides contextual annotations and voice coaching, aiming to turn cheating into genuine understanding. Free tier offers 10 sessions/month; Pro at $10/month for unlimited use.

Hacker News AIToolsIn-site articleShow HN: Calyxa – Browser Native AI tutor solving the "cheating" problem
Screenify Studio

Discussion | Link

Product Hunt AIAgentsSource content · Analysis pendingScreenify Studio
AI Nutrition Facts

With AI-generated content proliferating, work artifacts are filled with potential hallucinations and errors—'AI slop.' The author suggests adding disclosures to clarify AI usage, like 'nutrition facts,' to help colleagues assess trustworthiness and self-reflect on judgment gaps.

Hacker News AIResearchIn-site articleAI Nutrition Facts
Trump's latest AI czar has resigned

Chris Fall, director of the Center for AI Standards and Innovation (CAISI), has resigned after just three months in the role, following the rapid departure of his predecessor Collin Burns.

Hacker News AIToolsIn-site articleTrump's latest AI czar has resigned
France's edge in the AI race is cheap energy

France's abundant nuclear power provides low-cost electricity, giving it a competitive advantage in AI, but American tech giants may snap up that capacity first.

Hacker News AIToolsIn-site articleFrance's edge in the AI race is cheap energy
What Becomes Scarce After Intelligence?

The AI industry faces two opposing strategies: spending billions on nuclear power to support larger models, and releasing free open-source models. The article argues these are two sides of the same bet on whether intelligence has a ceiling. Biology offers a precedent: the human brain under energy constraints achieved efficiency through architecture innovations like sparsity and in-memory computing. Current open models apply these tricks but only cover mid-level tasks, while frontier models maintain an edge. The outcome depends on where the ceiling sits.

Hacker News AIModelsIn-site articleWhat Becomes Scarce After Intelligence?
Not enough water for UK’s datacentre plans, trade body says

The water industry has criticized the government's AI growth plans, stating that there will not be enough water for future datacentres due to cooling demands.

The Guardian AIPolicyIn-site articleNot enough water for UK’s datacentre plans, trade body says
Differentiable Reinforcement Learning for Path Tracking by an Agile Fish-Like Robot

Fish-like swimming has inspired dozens to hundreds of bioinspired robots, but control and motion planning remain challenging due to poorly modeled fluid-structure interaction and underactuated dynamics. This work develops a computationally efficient simulation platform and uses differentiable reinforcement learning with backpropagation through time and curriculum training to learn variable PID gains. The learned policy transfers seamlessly to the physical robot, showing excellent match.

arXiv RoboticsResearchIn-site articleDifferentiable Reinforcement Learning for Path Tracking by an Agile Fish-Like Robot
Foresight Residual RL for Long-Horizon Robot Manipulation with Vision-Language-Action Models

This paper proposes Foresight Residual RL, which improves long-horizon robot manipulation success by augmenting each subtask's sparse success reward with an offline-estimated foresight value—the probability of future subtask success conditioned on the terminal state of the current subtask. On a three-phase wrench-based nut-tightening task in Isaac Gym, it achieves 85.6% full-task success, outperforming standard subtask residual RL (54.5%) and VLA baselines.

arXiv RoboticsModels / ResearchIn-site articleForesight Residual RL for Long-Horizon Robot Manipulation with Vision-Language-Action Models
Certifiable Safe Model-Based Reinforcement Learning with Control-Affine Dynamics Approximation

A safe model-based reinforcement learning framework is proposed that learns control-affine dynamics and uses adaptive conformal prediction for uncertainty quantification, combined with control barrier functions for certifiable safety. Simulations on cartpole and 3D quadrotor demonstrate effectiveness.

arXiv RoboticsPolicy / ResearchIn-site articleCertifiable Safe Model-Based Reinforcement Learning with Control-Affine Dynamics Approximation