Meta AI
meta-ai-269cea21·16 events·first seen 1mo agoAliases: Meta AI, meta.ai
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Meta Introduces TRIBE v2: Predictive Foundation Model for Human Brain Activity
Meta AI has released TRIBE v2, a foundation model that predicts high-resolution fMRI brain activity in response to visual, auditory, and language stimuli. Trained on data from over 700 healthy volunteers, it achieves a 70x resolution increase over comparable models and supports zero-shot generalization to new subjects, languages, and tasks. The release includes model weights, codebase, a research paper, and an interactive demo under a CC BY-NC license. Meta positions the work as a bridge between neuroscience and AI development, enabling hypothesis testing without requiring human subjects in every experiment.
Meta SAM 3 (Segment Anything Model 3) Released on GitHub
Meta / Facebook Research has released SAM 3, the third generation of their Segment Anything Model, with code for inference and finetuning, pretrained model checkpoints, and example notebooks. The repository has accumulated over 10,000 stars with strong daily momentum (+93). SAM 3 continues Meta's open-weights tradition in computer vision foundation models. No accompanying paper or technical blog post is referenced in this item.
Hackers Simply Asked Meta AI to Give Them Access to High-Profile Instagram Accounts. It Worked
Simon Willison comments on a reported incident in which attackers successfully used Meta AI to gain unauthorized access to high-profile Instagram accounts through social engineering or prompt-based manipulation. The case illustrates real-world exploitation of AI assistant systems deployed in consumer products. This is a concrete deployment security failure with implications for how AI assistants handle privileged account actions.
Meta and World Resources Institute Release Canopy Height Maps v2 Using DINOv3 Self-Supervised Vision Model
Meta AI and the World Resources Institute have released Canopy Height Maps v2 (CHMv2), an open-source global forest mapping system powered by DINOv3, Meta's self-supervised vision model pre-trained on SAT-493M, a large satellite imagery dataset. The new model improves R² accuracy from 0.53 to 0.86 over the previous DINOv2-based version, with better performance on tall trees and greater geographic consistency. CHMv2 is already being adopted by the UK Forestry Commission, the European Commission's Joint Research Centre, and multiple US city planning initiatives. The model, maps, and dataset are publicly available.
UPenn PRONTO Team Uses Meta's SAM 2 and DINO for Autonomous Military Medical Triage in DARPA Challenge
The University of Pennsylvania's PRONTO team is applying Meta's Segment Anything Model 2 (SAM 2) and DINO/Grounding DINO models to autonomous robotic triage in DARPA's three-year mass casualty incident challenge. The multi-robot system uses drones and ground robots to locate victims, then runs parallel injury classification pipelines combining SAM, DINO, and pose estimation to assess heart rate, respiration, wounds, and amputations without requiring labeled training data. Results are surfaced to first responders via a mobile interface for real-time prioritization. Phase 2 concluded in October 2025, with Phase 3 expected to push toward deployment-ready performance.
Forest Research Deploys DINOv2 for National-Scale Tree Canopy Monitoring in England
Forest Research, the UK Forestry Commission's research agency, is using Meta's DINOv2 computer vision model—trained on 18 million satellite images in collaboration with the World Resources Institute—to build enhanced tree canopy height maps at 1-meter resolution for England. The approach aims to replace expensive LiDAR and survey data with open-source AI-derived canopy height models applied to national aerial photography, enabling rolling three-year monitoring cycles. The deployment supports the UK government's Environmental Improvement Plan targets and the Natural Capital and Ecosystem Assessment program. Meta also announced DINOv3 as a successor to further improve visual intelligence for such applications.
Meta Publishes Advanced AI Scaling Framework and Safety & Preparedness Report for Muse Spark
Meta has released an updated Advanced AI Scaling Framework that expands risk evaluation categories—including chemical/biological threats, cybersecurity, and loss-of-control risks—and introduces formal Safety & Preparedness Reports tied to specific model deployments. The first such report covers Muse Spark, Meta's advanced reasoning model, detailing pre- and post-safeguard evaluations across severe risk categories and ideological balance. Meta also describes a shift in safety methodology: rather than scenario-specific refusal training, Muse Spark is trained on the reasoning behind safety principles, enabling more generalizable behavior in novel situations. The framework applies across open, API, and closed deployments.
2023, Year of Open LLMs
Hugging Face's year-in-review post surveys the major open-weight large language model releases and milestones of 2023. The piece covers the proliferation of open models from various labs and the ecosystem developments that made them accessible. It serves as a retrospective on how open-source LLMs matured and competed with proprietary systems throughout the year.
Fine-Tune MMS Adapter Models for Low-Resource ASR
This Hugging Face blog post provides a technical guide for fine-tuning Meta's Massively Multilingual Speech (MMS) adapter models for automatic speech recognition in low-resource languages. It covers the adapter-based fine-tuning approach that allows efficient adaptation of the MMS model to specific languages without full model retraining. The post targets practitioners working on speech recognition for underrepresented languages.
GRASP: Gradient-based Planning for World Models at Longer Horizons
Researchers from Berkeley, Meta, and collaborators introduce GRASP, a gradient-based planner designed to make long-horizon planning with learned world models more robust. The method addresses three core failure modes: ill-conditioned computation graphs from backpropagation through time, non-greedy loss landscapes with many local minima, and brittle gradients through high-dimensional vision models. GRASP lifts trajectory optimization into virtual states for parallel optimization across time, injects stochasticity into state iterates for exploration, and reshapes gradients to avoid problematic state-input gradient paths. The work is positioned in the context of scaling world models toward general-purpose simulators usable for control and planning.
Meta Introduces Muse Spark: First Model from Meta Superintelligence Labs with Multimodal Reasoning and Multi-Agent Orchestration
Meta has launched Muse Spark, the first model from its newly formed Meta Superintelligence Labs, positioned as a natively multimodal reasoning model with tool-use, visual chain-of-thought, and multi-agent orchestration capabilities. The model introduces 'Contemplating mode,' which runs multiple agents in parallel to compete with frontier reasoning modes, achieving 58% on Humanity's Last Exam and 38% on FrontierScience Research. Meta claims a greater than 10x compute efficiency improvement over Llama 4 Maverick through a rebuilt pretraining stack, and describes predictable scaling across pretraining, RL, and test-time reasoning axes. Muse Spark is available at meta.ai with a private API preview, and is framed as the first step on a scaling ladder toward 'personal superintelligence.'
Fine-tuning Llama 2 70B using PyTorch FSDP
This Hugging Face blog post details a practical workflow for fine-tuning the Llama 2 70B model using PyTorch Fully Sharded Data Parallel (FSDP), focusing on RAM-efficient techniques. The guide addresses the memory challenges of training large-scale open-weight models across multiple GPUs. It serves as a technical reference for practitioners working with frontier-scale open models on distributed infrastructure.
Fine-tune Llama 2 with DPO
This Hugging Face blog post provides a practical guide to fine-tuning Llama 2 using Direct Preference Optimization (DPO) via the TRL library. It covers the alignment technique that bypasses the need for a separate reward model compared to RLHF, walking through dataset preparation, training configuration, and implementation details. The post targets practitioners looking to apply preference-based alignment to open-weights models.
Deploy MusicGen in no time with Inference Endpoints
Hugging Face published a guide on deploying Meta's MusicGen model as a production API using Hugging Face Inference Endpoints. The post covers custom inference handler setup, containerization, and API integration patterns for audio generation workloads. It demonstrates a practical deployment path for generative audio models outside of research environments.
Fit More and Train Faster With ZeRO via DeepSpeed and FairScale
This Hugging Face blog post from January 2021 covers integration of ZeRO (Zero Redundancy Optimizer) memory optimization techniques via DeepSpeed and FairScale into the Transformers training ecosystem. ZeRO partitions optimizer states, gradients, and model parameters across GPUs to enable training of much larger models on the same hardware. The post serves as a practical guide for practitioners looking to scale model training without additional infrastructure investment.
ChunkFT: Memory-Efficient Full Fine-Tuning via Byte-Streamed Chunk Optimization
ChunkFT is a fine-tuning framework that reformulates full-parameter optimization around a dynamically activated working set of sub-tensors, enabling gradient computation without dense gradient materialization. It achieves full-parameter fine-tuning of a 7B model in 13.72GB GPU memory on a single RTX 4090, and scales Llama 3-70B fine-tuning to 2×H800 GPUs. Downstream evaluations on language understanding, math reasoning, and MT-Bench show ChunkFT matches or exceeds full-parameter fine-tuning quality while outperforming existing memory-efficient baselines such as LoRA-class methods. A theoretical convergence analysis in the deterministic setting is also provided.