Open-source AI news: open-weight models and tools
The latest open-source and open-weight models you can download and run yourself, plus new open-source AI tools. To try them, see our tool picks.
- Open source
Cognition Open-Sources Devin Security Plugin
Cognition released the MIT-licensed Devin Vulnerability Fixes plugin featuring three agent skills. The tool inventories, patches, and tests PHP, Node.js, and self-managed GitLab deployments affected by recent critical RCE flaws, opening one pull request per repository.
- Open source
Open-source tool GPU Unlock unlocks AI performance on RTX 30 series
The open-source project GPU Unlock removes artificial limits on Ampere architecture cards without changing drivers or VBIOS. It nearly doubles tensor core throughput under specific loads, improving AI compute performance.
- Open source
Alibaba Launches Local-First AI Search Tool zg
Alibaba released zg, a local-first search layer integrating vector databases and traditional retrieval algorithms. The tool supports terminal and AI agent usage, aiming to provide unified information access for both humans and AI.
- Open source
NVIDIA Releases Nemotron 3.5 Bolt E4B
NVIDIA released the open-source small language model Nemotron 3.5 Bolt E4B, post-trained from Gemma 4 E4B. Optimized for RTX and Jetson platforms, it requires about 4GB of VRAM and targets local voice agents, game characters, and robots.
- Open source
Kyutai releases open-source video autoencoder CADRE
Kyutai released CADRE, a family of seven open-source causal diffusion video autoencoders. Interactive world models built on it run at 20 fps on one H100 with reaction times under 230 ms.
- Open source
Zhipu Zongzhi Releases FlagOS 2.2 for AI Model Co-evolution
Zhipu Zongzhi released FlagOS 2.2, a software update designed to support the co-evolution of advanced AI models and diverse compute architectures to improve deployment efficiency.
- Open source
Hugging Face releases LitPivot for research ideation
Hugging Face released LitPivot, a tool designed to help researchers develop ideas through dynamic contextualization within the literature landscape. It assists scholars in efficiently positioning their concepts within existing research.
- Open source
Hugging Face Releases Open-Source DNA Model Carbon-X
Hugging Face and multiple institutions launched the open-source model Carbon-X, allowing researchers to query DNA sequences using natural language. Built on Qwen3-14B, it is trained on multi-species DNA data to lower the barrier for bio-informatics analysis and offer cost advantages.
- Open source
Anthropic donates Agent Skills standard to Linux Foundation
Anthropic donated the Agent Skills standard to a Linux Foundation entity, managed by engineers from various companies. Over 70 AI agent platforms have adopted the standard.
- Open source
OpenSSF Releases AI Vulnerability Handling Guidelines
The Open Source Security Foundation released guidelines for AI-driven vulnerability discovery and patching, drafted by its Best Practices and AI/ML working groups. The guidelines offer practical advice emphasizing verification and human review to help teams patch vulnerabilities early.
- Open source
Anthropic Donates Agent Skills Standard to AI Foundation
Anthropic announced it is donating the Agent Skills standard to the Agentic AI Foundation under the Linux Foundation to keep it open and vendor-neutral, after previously donating the MCP standard.
Simon WillisonMarkTechPost2 outlets
- Open source
OpenShell Runtime for AI Agents Released
OpenShell was shared on Hacker News as a safe, private runtime for fleets of autonomous AI agents. The tool enables deploying multiple agents in a controlled environment to enhance data privacy.
- Open source
Gradium Open-Sources Phonon On-Device TTS Model
Gradium open-sourced Phonon, an on-device text-to-speech model. With 31 million parameters and an Apache 2.0 license, the model fits in 64.5 MB and starts speaking in about 7 ms on a laptop CPU.
- Open source
Microsoft open-sources Scope for AI agent evaluation
Microsoft open-sourced Scope, a platform that evaluates AI coding agents like GitHub Copilot on defined tasks. It logs operations and results, helping teams verify correct use of SDKs and APIs and identify agent issues.
- Open source
China Telecom releases open-source intent model Xing4.0-29B-Intent
China Telecom's Star AI Lab released and open-sourced the dedicated intent understanding model Xing4.0-29B-Intent. The model is designed to accurately identify user intent in complex scenarios, supporting multiple task formats. This expands the open-source AI ecosystem in vertical applications.
- Open source
NVIDIA Expands Cosmos for World Models
NVIDIA expanded the Cosmos platform with new training tools, simulation checkpoints, and data factory blueprints to help developers build world models for physical AI systems. The platform ranks in the top five on six open model leaderboards, strengthening its position in the physical AI sector.
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