Open source

AIMirroS has released AgentGarten, an open framework where AI agents act, observe and learn in simulated worlds. Code handles physics and game rules, while a neural renderer turns geometry sketches into realistic frames at more than 30 frames per second at 480p on a single GPU. Across five worlds, agents improved over rounds using a playbook of lessons, such as a companion-dog score rising from 13 to 19. The team describes it as a research environment, not a deployed robot product.

AIRadixArk says Miles runs reinforcement learning end to end on NVIDIA Vera Rubin, using SGLang rollouts, Megatron training and one container image. Agentic RL runs 64 concurrent sandboxes on the Vera CPU next to the GPUs. The linked SGLang post reports that Kimi K3 inference gained up to 20% faster FP8 MLA at batch 1 with 128K context, and a 5.9% end-to-end speedup from MoE tail fusion.

Why it matters: The post gives concrete speedup figures and a specific RL setup on early-access Rubin hardware, useful for engineers comparing inference and training stacks.

AIvLLM now supports NVIDIA Vera Rubin NVL72, with daily container builds and support for models from DeepSeek, Moonshot AI, Z.ai, and MiniMax. In early AgentX benchmarks, vLLM running MiniMax M3 delivered up to 7.84x the throughput per GPU of GB200 NVL72 at matched interactivity. The post is an early look, and the team expects further gains from ongoing optimizations.

Why it matters: The post gives specific hardware specs, kernel configurations, and benchmark figures for running vLLM on Vera Rubin NVL72, useful for teams planning deployments.

AIMike Knoop says the 85% Grand Prize bonus threshold has been reached on Kaggle. The ARC Prize 2026 leaderboard lists Tufa Labs first at 88.06%, followed by Rabbithole at 80.56% and Yi-Chia Chen at 77.22%. Knoop says this will be the final year for ARC-AGI-2 on Kaggle and expects an open-source, low-cost, offline reproducible solution and model.

AISyren Video, a new agentic video tool, learns preferred graphics, motion, and editing rhythm from a user's library and generates new videos from a prompt. Users refine the results through chat, and the tool is free to try in a browser or through Claude MCP, per the company's announcement. The post's author says the education sector is exploring it.

AIUnderdog has released Saluki 27B under Apache 2.0, a 2-bit GGUF of Qwen3.8-27B that fits in 7.89 GB, versus 54 GB for the full BF16 model. On Underdog Bench, Saluki scores 88 against 84 for the full model, and it raises parallel tool-call accuracy to 42 from 35. It runs on stock llama.cpp, but math and reasoning drop sharply, with AIME 2025 at 79.2 versus 96.7.

AIThreatBook has acquired CyberStrikeAI, an open-source AI pentesting agent, after reports that attackers had used it in real intrusions. The company says it added guardrails to limit misuse but will put new capability enhancements into its commercial edition, and it argues defenders should control such tools. It also corrects an earlier threat intelligence report that linked the developer, a security engineer at Alipay, to government agencies, calling that attribution a false positive.

AIRembrandt is a free, open-source photo editor for macOS, Windows and Linux that runs locally and needs no account or subscription. It saves edits as standard XMP sidecar files next to each photo and can also run as a self-hosted server accessed through a browser. Only optional cloud sync is paid.

AIPocketty is a $99 iPhone and iPad SSH terminal, with a 14-day free trial, that notifies you when an herdr-managed agent is blocked or done. The alert is sealed on your computer for your phone only, and tapping it opens that exact Pane over SSH so you can answer in a real terminal. The source says the relay forwards only sealed bytes and that terminal traffic goes directly between the app and your computers.

AIDeveloper Brandon Thomas used Claude Opus 5.5 and Rust to build Artcraft, a free open-source suite with Photocraft, Vectorcraft, and other apps that mimic Adobe products. The author tested Photocraft and found its basic editing commands worked where expected, but Free Transform behaved unpredictably. Thomas describes the software as early alpha and invites developers to contribute.

AIPreference Model is open-sourcing Karotte, the framework it uses to build reinforcement learning environments that resist reward hacking, including defenses like killing stray processes before grading and rejecting grader-crashing files. The framework has been hardened through more than a million evaluation runs and controlled red-teaming. The company focuses on machine learning engineering tasks for leading labs, and a16z says it is partnering with Preference Model and its founders, Jennifer Zhou and Ning Cao.

AITerse, a Claude Code plugin, enforces a shorter reply style by cutting filler, slogans, metaphors and first-person narration. The author says it reduces replies by 46% on Fable 5.1 and 54% on Opus 5.5, measured on 20 prompts against a real codebase. The plugin installs from the Claude directory or GitHub, and its rules apply to replies, documents, commits and subagents.