Open Source - News Articles

StepFun launches Step 5 Preview API and Studio for 600B-parameter MoE model with claimed 1M-token context

Sep 20, 2026

OrcaRouter

StepFun launches its Step 5 Preview API and Studio for a 600B-parameter sparse MoE model claiming a 1M-token context window, though public BF16 weights are not scheduled until October 15, 2026.

Foundation Models Open Source

Cloudflare Open-Sources Security-Audit Skill for Independently Verified AI Code Scans

Sep 20, 2026

GitHub

Cloudflare open-sources a security-audit skill that guides coding agents through six audit phases and emits independently verified, machine-readable vulnerability findings, requiring confirmed bugs to include a complete source trace and bounded observed result while sandboxing target code with networking disabled.

Security Coding & Developer Tools Open Source

Cua Launches Open-Source Platform for AI Agents to Operate Desktop Apps and Browsers

Sep 20, 2026

GitHub

Cua launches an open-source computer-use platform that lets AI agents operate native desktop apps and browsers across macOS, Windows and Linux through its Cua Driver CLI, MCP and typed SDKs.

Agents Coding & Developer Tools Open Source

Browser Use Launches Open-Source Jev Ultrafast Browser Agent, Cutting Google Flights Search Time to 7.1 Seconds

Sep 18, 2026

GitHub

Browser Use launches Jev Ultrafast as an open-source browser agent that completes a Zürich-to-London Google Flights search in 7.1 seconds, reducing median browser protocol calls from 1,092 to 101 through a dynamic indexed action space.

Agents Open Source Coding & Developer Tools

Liquid AI Launches LongevityBench, Says Compact Aging Models Rival Frontier Systems

Sep 18, 2026

Liquid AI

Liquid AI launches LongevityBench and two open aging-focused LFM2 models, saying the 2.6B-parameter version leads NHANES pairwise age prediction while both compact models beat every tested frontier system on Olink proteomics age tasks.

Science Research Open Source

Google Cloud launches open-source Agent Substrate runtime on GKE with production support

Sep 17, 2026

Google Cloud Blog

Google Cloud launches the open-source Agent Substrate runtime on Google Kubernetes Engine, offering allowlisted production support and isolating untrusted AI agent code in Cloud Hypervisor microVMs or gVisor sandboxes while resuming idle agents in under 500ms.

Agents Cloud Computing Security Open Source

Arcee AI Raises at Least $150 Million Series B at $1 Billion Valuation

Sep 17, 2026

Fortune

Arcee AI raises at least $150 million in a Series B at a $1 billion pre-money valuation, with Vista Equity Partners, Cambium Capital, and Emergence Capital backing expansion of its models, products, and U.S. Department of Energy partnership.

Funding Open Source Public Sector

Enactic Launches Open-Source 7DOF Humanoid Arm for Physical-AI Research

Sep 16, 2026

GitHub

Enactic launches OpenArm, a fully open-source 7DOF humanoid arm for physical-AI research, with a $6,500 bimanual system and a standardized OpenArm Cell for reproducible teleoperation, imitation-learning, simulation, and contact-rich real-world experiments.

Robotics Open Source Research Hardware

Gitlawb Launches OpenClaude, an Open-Source Terminal Coding Agent for Cloud and Local AI Models

Sep 15, 2026

GitHub

Gitlawb launches OpenClaude, an open-source terminal coding agent that works with cloud APIs and local AI backends, including Gemini, Ollama, Bedrock and OpenAI-compatible providers, while its --bg mode runs prompts in detached sessions with logs stored in ~/.openclaude/bg-sessions/.

Coding & Developer Tools Open Source Agents

Google Releases ARTEMIS, Open-Source AI Tool for End-to-End Android Automation

Sep 15, 2026

GitHub

Google releases ARTEMIS, an open-source platform that converts natural-language requests into Android automation, linking real devices to Antigravity, Codex, Claude Code and Windsurf via MCP, with a Pro mode designed for workflows of more than 100 steps.

Coding & Developer Tools Agents Open Source