#Open source/Repo

AIThomas Dohmke argues Europe must commit to global, model-agnostic open-source collaboration to catch up in the AI era. He says that approach would let a breakthrough in Beirut benefit Berlin, linking to a Vox piece on Chinese open-weight AI models such as Kimi and DeepSeek.

AIMeituan LongCat says it has kept building with LongCat-2.0 since its release, showcasing five projects each generated from a single prompt. The examples span voxel art, 3D modeling, CG animation, a landing page, and a mini game.

AIThinking Machines has released Inkling-Small, which the author says achieves performance comparable to Inkling at a quarter of its size. The model has 276B total parameters with 12B active, and its full weights are available, with fine-tuning on Tinker and chat in text, image, and audio on Tinker Playground.

AIThinking Machines is releasing Inkling-Small, a model it says achieves performance comparable to Inkling at a quarter of its size. The model has 276B total parameters with 12B active, and full weights are available. It can be fine-tuned on Tinker or used for text, image, and audio chat in the Tinker Playground.

AIPoolside released Laguna S 2.1, an open-weights agentic coding model with 118 billion total parameters and about 8 billion active per token, supporting up to a million tokens of context. Quantized, it fits on one NVIDIA DGX Spark, and Poolside reports 70.2% on Terminal-Bench 2.1 with thinking enabled, with its evaluation trajectories published online. The same week it shipped the Poolside Desktop Assistant for macOS, which runs Laguna locally or alongside Claude Code, Codex, and Gemini agents.

AIAlibaba NLP has released UEmbed-9B, a decoder-only multimodal embedding model built on Qwen3.5 9B that outputs both dense and SPLADE-style sparse embeddings from one forward pass. It supports text, image, video, and mixed-modal inputs for retrieval and multimodal search, and the family also includes 2B and 4B variants. The model is available on Hugging Face, with transformers and vLLM inference support.

AIAlibaba NLP has released UEmbed-4B, a decoder-only multimodal embedding model built on Qwen3.5 4B that outputs both dense and sparse embeddings from one forward pass. It handles text, image, video, and mixed-modal inputs for retrieval and visual-document search, and sparse activations map to vocabulary terms usable with inverted indexes. The model is available on Hugging Face in a family that also includes 2B and 9B variants.

AIAlibaba-NLP's UEmbed-2B, a decoder-only multimodal embedding model built on Qwen3.5 2B, produces both dense and SPLADE-style sparse embeddings from a single forward pass. It supports text, image, video, and mixed-modal inputs for retrieval, and the 4B and 9B variants are also available. The team reports state-of-the-art results on the text and agent tracks of MMEB-v3.

AIMiniMax released H3, an open-weights omni-modal model that generates video with native stereo audio up to 2K and 15 seconds. The system combines H3-Context-IR preprocessing, the H3-Base generator at 768p, and H3-Regenerate-2K for 2K output, with the Context-IR and 2K modules available only through API.

Why it matters: The source details a three-module pipeline and open weights with deployment paths, showing how a video model is served and reproduced locally.

AILiquid AI released LFM2.5-Encoder-230M and LFM2.5-Encoder-350M, bidirectional encoders built on the LFM2 hybrid architecture and available on Hugging Face. They support an 8,192-token context and are designed for fine-tuning on classification and token-level tasks. On CPU, LFM2.5-Encoder-230M is the fastest model tested from 1K tokens up, running about 3.7x faster than ModernBERT-base at 8,192 tokens.

AIKimi K3 is now available on Nebius Token Factory, which is named a Day 0 launch partner, through an OpenAI-compatible API and console. The quoted post says Artificial Analysis scores the open-weight model at 57 on its Intelligence Index, two points behind GPT-5.6 Sol (max), and lists up to 1M tokens of context.

Why it matters: The source names the cloud access route and an Artificial Analysis score of 57, letting readers compare Kimi K3 against GPT-5.6 Sol.

AIMoonshot AI has open-sourced MoonEP, a high-performance communication library for distributed MoE workloads. The library is designed to reduce communication overhead in expert-parallel training and inference at scale. The code is available on GitHub under MoonshotAI/MoonEP.

AIMoonshot AI's Kimi, in collaboration with kvcache-ai, has open-sourced AgentENV, a distributed system for running agent environments at scale. Its components power agentic RL training for Kimi K3, supporting fast snapshot, resume, and fork for large-scale parallel agent workflows. The project is available on GitHub at

AIMoonshot AI has open-sourced FlashKDA, a high-performance CUTLASS-based implementation of Kimi Delta Attention kernels. It delivers a 1.72×–2.22× prefill speedup over the flash-linear-attention baseline on H20 and works as a drop-in backend for flash-linear-attention.

AIMoonshot AI is releasing the model weights and technical report for Kimi K3, a 2.8T-parameter MoE model with native visual understanding and a 1M-token context window. The post says the new architecture delivers 2.5x the intelligence per unit of compute, and the company is also opening high-performance attention kernels, an MoE communication library, and infrastructure for running agent environments at scale.

Why it matters: The source names the model size, context window, and released weights, which helps readers compare its scale and openness with other frontier releases.

AIKimi announced Kimi K3, a model whose open weights are coming soon. The post provides no further details on architecture, parameters, benchmarks, or release date.

AICohereLabs has published North-Mini-Code-1.0-eagle, an Eagle draft model for its North-Mini-Code-1.0 target model. The three-layer draft uses dense transformer blocks and sliding window attention, and it is compatible with fp8 and w4a16 target checkpoints in vLLM.

AIBerkeley's STAR Lab packaged multiple LLM-based "autoresearch" algorithms into a single API within the GEPA package, letting users mix and match them. The optimizers can be applied to tasks including prompt writing, agent design, and code optimization. The quoted thread adds that GEPA, AutoResearch, and Meta-Harness each win on different tasks, and that the new optimize_anything omni meta-optimizer beats every standalone optimizer at a matched budget.

AIBAAI has released AREX-Base, a 122B-total, 10B-activated Mixture-of-Experts deep research agent built on Qwen3.5-122B-A10B with a 262,144-token context. The model uses an inner research loop and an outer self-improvement loop, and the source reports it scoring 82.5 on BrowseComp and 85.4 on GAIA, under Apache 2.0.

Why it matters: The release pairs a 122B-parameter deep research agent with benchmark tables against frontier and open models, letting readers compare its search-agent results directly.

AIBAAI's AREX-Turbo is a dense 4B deep research agent built on Qwen3.5-4B with a 262,144-token context length. It scores 70.7 on BrowseComp, 81.6 on GAIA and 40.6 on HLE with tools, versus 82.5, 85.4 and 52.4 for the 122B AREX-Base. The model is released under Apache License 2.0 and targets lower-cost research-agent deployment.

AIAndrew Ng and Rohit Prasad announced OpenWorker, an open-source agent that produces deliverables such as documents, Slack messages, and calendar updates across files and everyday tools. It checks in before consequential actions, runs on Mac with Windows support coming soon, and works with user-supplied API keys for models including GPT 5.6 Sol, Claude Fable, Gemini 3.6, open-weight models, or local Ollama models. Source code is available on GitHub, and the tool requires the user's own API key.

AIPoolside released Laguna S 2.1, an open-weight model with 118B total parameters and 8B active per token. The author says it performs strongly on agentic coding and long-horizon tasks, and it can run on a single NVIDIA DGX Spark. Weights are on Hugging Face under the OpenMDW-1.1 license, with access also available through OpenRouter and Poolside's API.

AIAnthropic's Noah Zweben announced that users can create Artifacts directly from Claude Tag. Background from @ClaudeDevs says Artifacts now support public sharing and multiplayer editing in Claude Code.

AISkywork has upgraded its Posters tool, letting users create posters that fit all social platforms in one click. The post provides no further details on features, pricing, or availability.

AISkywork announced its Skywork Video tool as the way to start your next video, linking to its video page. The post gives no details on features, models, pricing, or capabilities.

AIRun upgraded Gemma 4 with llama.cpp (QAT + MTP)

AIMistral AI released Shieldstral-1.0-3B, a 3B-parameter multimodal safety classifier that judges content against natural-language policies and outputs a continuous safety score. It moderates text, image, and text-plus-image content in a single forward pass and can be retargeted to new policies at inference time without retraining. The Apache 2.0 open-weight model is built on Ministral-3-3B-Base-2512 and trained on sequences up to 32k tokens.

AIJunyang Lin praised Thinking Machines' new architecture in Inkling, which reasons across text, image, and audio, and asked whether the small model is open-sourced. The quoted announcement says the full weights are available and that Inkling is available for fine-tuning on Tinker.

AIThinking Machines introduced Inkling, a model that reasons across text, image, and audio, and is making its full weights available. It is available today for fine-tuning on Tinker and can be tried in the Inkling Playground. John Schulman says pretraining began last winter and a small team added coding, reasoning, and agentic training starting in mid-January.

Why it matters: The post links an open-weights release to a stated training timeline, showing how a small team moved from pretraining to coding, reasoning, and agentic training.

AIThinking Machines introduced Inkling, an open-weight model with 975B parameters that reasons across text, image, and audio. The full weights are available, with fine-tuning on Tinker and access through the Inkling Playground and Hugging Face and partners.

AIMira Murati announced Inkling, the first model from Thinking Machines, trained from scratch with its full weights made available. The model reasons across text, image, and audio, and is available today for fine-tuning on Tinker and testing in the Inkling Playground.

AIThinking Machines has introduced Inkling as the first model in a family. It also shares details of Inkling-Small, a lighter-weight model trained on a similar recipe, with full weights promised later.

AILiquid AI released Antidoom, an open-source method that retrains a single overtrained token to eliminate "doom loops" in small reasoning models. On LFM2.5-2.6B and Qwen3.5-4B, loop rates fell from 10.2% to 1.4% and from 22.9% to 1%, respectively. The company also released IFStruct, an open-source benchmark measuring whether model outputs satisfy a schema, where LFM2.5-350M rose from 21.10% to 44.90% after training.

AIStability AI audio researcher CJ Carr will cover running the model locally, even on a MacBook Pro, in a workshop. Topics also include training your own LoRA, using Stable Audio with Ableton, and building custom audio tools on top of the model.

AIStability AI is addressing producers, creative coders, and curious readers who want to understand how its audio technology works under the hood. The post says basic comfort with music tools and Python helps but is not required.

AIGeorgi Gerganov announced the 10,000th release of llama.cpp, marking a notable milestone for the open-source inference project. The post itself contains no further details about the release contents, features, or version number.

AIByteDance's UniVR-34B-Planning, built on Emu3.5 at 34B parameters, learns visual reasoning, physical dynamics, and long-term planning from visual demonstrations using a next-token objective and two-stage training on the VR-X dataset with VR-GRPO reinforcement learning. On the VR-X benchmark it scores 58.2 overall, up 18.4 points from the Emu3.5 34B baseline of 39.8. The Planning checkpoint is available on Hugging Face under CC BY 4.0, alongside a General checkpoint.

AIZed v1.10 now includes proper support for llama.cpp as a model provider, according to Georgi Gerganov. Zed's own announcement credits Hugging Face with helping make the llama.cpp integration possible.

AICursor's Aman Sanger says the new model is an enormous improvement over Composer 2.5 and was trained entirely from scratch with the SpaceXAI team. The quoted Cursor post identifies it as Grok 4.5, Cursor's most powerful model yet and the first built for more than software engineering.