Foundation models and ML platforms — LLMs, multimodal models, and model APIs. The models developers build on, plus tools to train and fine-tune them.







The open-source ML hub — 2M+ models, 500k+ datasets, Spaces, Inference Endpoints, and the Transformers library.

Tempus AI is the publicly-traded precision medicine platform combining genomic sequencing with AI-driven clinical insights. NASDAQ: TEM, $8B+ market cap.

AI safety company building Claude and pioneering Constitutional AI — $61B valuation.

Anduril builds AI-powered autonomous defense systems including Lattice OS, Ghost drone, Sentry tower, and Roadrunner. Founded by Palmer Luckey; $30B+ valua

Fastest generative AI platform for developers — 1,000+ image, video, audio, and 3D models with optimized real-time inference. Default home for FLUX, SAM, MuseTalk.

AI21 Labs reimagines reading and writing with AI, transforming machines into thought partners

Building the general-purpose robotic brain — Skild's omni-bodied foundation model controls any robot, valued at $14B+ after acquiring Zebra's Robotics business.

Meta's open-weight AI family — Llama 4 with native multimodality and 10M-token context.

ByteDance's flagship AI assistant. 155M+ weekly active users — among the most-used AI products globally. Multimodal chat, image, voice.

Premium AI data labeling for frontier labs. Used by Anthropic, OpenAI, and major foundation labs for high-quality RLHF training data.

Frontier image generation and editing models from Black Forest Labs, the FLUX family.

Advanced AI models focusing on efficiency, openness, and customization.

Frontier AI lab founded by ex-OpenAI CTO Mira Murati. $2B seed at $12B valuation, in talks for $50-60B. Building useful and safe AI.

Alphabet's AI drug discovery company — DeepMind spin-out from AlphaFold. Computational drug design at the frontier of structural biology AI.

A platform for building context-aware LLM applications.

Open-source platform for machine learning solutions.

Open-source AI models for Image, Language, Audio, Video, 3D, Biology, and more

Advanced AI platform offering open-source large language models for diverse use cases

Meta AI is the Llama-powered consumer AI assistant from Meta — embedded in WhatsApp, Instagram, Messenger, plus standalone meta.ai. 1B+ users.

Alibaba flagship reasoning model and chat with strong multilingual and code skills.

Decart is a real-time generative AI lab that builds interactive video and world models like Lucy and MirageLSD on top of its DOS inference stack.

Fei-Fei Li's spatial-intelligence company. Marble — World Labs' first commercial product — generates persistent, editable 3D worlds from text, photos, video.

Real-time voice AI platform with low-latency speech, cloning, and TTS APIs.

High-speed, cost-efficient generative AI for product innovation with advanced fine-tuning capabilities.

Open-source AI platform for rapid, versatile large language model development.

Voice-first AI companion — natural conversational voice and lightweight all-day eyewear.

Tencent's open-source AI video generation model — high-quality text-to-video and image-to-video.

AI systems developer focused on creating practical AI agents that can reason and work safely in the real world.

Apple's machine learning framework for integrating models into apps.

Helsing is the European AI defense company — Lattice OS competitor for European militaries. $487M Series C at $5.4B valuation; Spotify's Daniel Ek invested

Moonshot AI assistant with long-context reasoning and strong agentic coding.

Google's flagship AI assistant powered by Gemini 3 with Deep Research, native video understanding, and Workspace integration.

Google DeepMind cinematic text-to-video model with native audio and long shots.

Anthropic flagship chat with strong reasoning, long context, and projects.

Unified API and marketplace for the best LLMs at the best prices for any prompt.

Advanced AI system for building deep AI capabilities in enterprises.

Deep learning framework by Berkeley AI Research (BAIR) for fast feature embedding.

Cloud AutoML offers custom machine learning model training with minimal expertise.

Agentic coding IDE with Cascade, Tab autocomplete, and multi-file edits, by Cognition.

Microsoft's multi-agent conversation framework for building complex agentic systems.

Real-time interactive AI avatars API — CARA-3 model #1 on Avatar Benchmark with 180ms latency. In Fin AI Startup Pack alongside ElevenLabs and Lovable.

Top Chinese foundation lab building the GLM family — ChatGLM, GLM-4, and AutoGLM agents.

Oumi is an unconditionally open-source AI lab building foundation models with the full pipeline open. Founded by ex-Apple, ex-Meta, ex-Google leaders.

AI music generation assistant that composes original soundtracks in 256+ styles — from symphonic to electronic, with MIDI export and full copyright on Pro tier.
Fast, lifelike, affordable AI speech — studio-quality voice clones with 150ms latency. 24 languages. The TTS pick for cost-sensitive voice agents.

AI filmmaking studio from Lightricks — turn scene descriptions into full movie sequences with character consistency, scene-level controls, and a complete edit suite.

Stability AI's audio model — generates structured tracks up to 3 minutes at 44.1kHz, transforms samples, and produces sound effects from text prompts.

The original autonomous AI agent — set a goal, watch it iterate. 165K+ GitHub stars and the launchpad for the agent revolution.

Pioneer in AI molecular docking — uses AtomNet deep learning to screen billions of molecules against protein targets. Hundreds of pharma partnerships.

Unlearn.AI develops generative machine learning for predictive health outcomes and clinical innovation.

Invisible Technologies is an AI training-data and operations platform that blends expert humans with software for model alignment and process automation.

PixAI is an AI anime art generation platform and community with Stable Diffusion models, LoRAs, and a shared gallery.

Poolside builds frontier AI foundation models specialized for code generation. $626M Series B at $3B valuation; founded by ex-GitHub CTO Jason Warner.

Decentralized verification network for AI outputs — consensus-based hallucination reduction.

Tensor.Art is an AI image generation platform and model-sharing community on Stable Diffusion and Flux.

Video understanding foundation models. Multimodal AI for video search, classification, and generation. Radical Ventures portfolio; Series B.

MiniMax is a Shanghai-based AI lab building foundation models for text, voice, image, and video. $1B+ raised; powers Hailuo (video) and Talkie (companion).

Harmonic is a mathematical-reasoning AI company whose Aristotle model writes formally verified Lean 4 proofs to deliver hallucination-resistant math answer

World's leading marketplace for AI training data, tools, and models.

Autonomous coding superintelligence lab founded by ex-DeepMind / ex-Anthropic researchers.

Build advanced conversational voice AI with rapid response times.

Rank Prompt tracks how brands rank inside ChatGPT, Perplexity, Gemini, and other LLMs. Generative engine optimization (GEO) for the AI-search era.

Tesla Optimus is Tesla's general-purpose humanoid robot built on Full Self-Driving compute and vision. Targeted at factory work first; consumer rollout pla

AI-native drug discovery company building foundation models for biology. Forbes AI 50 2026 newcomer; backed by OpenAI Startup Fund and Thrive Capital.

Genesis AI builds general-purpose robots and a robotics foundation model for real-world automation.

AI avatar generator for video ads — 1500+ avatars, Aurora diffusion transformer for ultra-realistic lip-sync, native publishing to Meta, TikTok, YouTube, LinkedIn.

Real-time speech-native multimodal LLM — Ultravox understands audio directly without separate ASR, achieving 150ms TTFT. Open weights, by Fixie AI.

Causal AI and decision-making

Niantic Spatial builds foundation models for physical AI — geometrically accurate digital twins and spatial intelligence.

Field AI builds general-purpose robot intelligence (Field Foundation Models) for autonomous real-world operation.

Luel is a marketplace for rights-cleared, multimodal AI training data, delivered by a global contributor network.

Baidu's flagship LLM family — China's longest-running large-model effort.

Foundation model lab building Reka Flash, Core, and Edge — multimodal frontier models.

Tencent's Hunyuan Image foundation model for text-to-image with strong multilingual support.

Archetype AI is a physical-AI platform whose Newton foundation model perceives and reasons about the physical world.

Encord is a data development platform that helps vision and physical-AI teams curate, label, and evaluate multimodal training data.

Scalable distributed vector search engine

First foundation model for general robot control — Pi-zero (π0) is a vision-language-action flow model from a team including Sergey Levine. Open source.

Public AI drug discovery company ($RXRX) — uses phenomic imaging + ML at massive scale. Operates BioHive, one of the largest pharma-owned supercomputers.

Kai-Fu Lee's foundation lab behind the Yi model family — efficient open-source frontier models.

Comet's platform for tracking, comparing, and reproducing ML experiments.

Building efficient, trustworthy AI systems from first principles.

Chinese video generation model from Shengshu — competitive with Sora on dynamics.

Xaira Therapeutics: $1B AI drug-discovery foundation lab applying generative models to protein design. Founded 2024 by ex-Genentech CSO Marc Tessier-Lavign

Hyper-realistic AI clone for video calls — replaces your camera feed with a virtual you that lip-syncs to your voice in real time. Zoom, Meet, Teams.

One API 100+ AI Models Accessible 24/7

Hyperscience is the enterprise AI IDP platform processing high-volume forms, mail, and documents. ~$300M raised; serves Fortune 500 and federal agencies.

Low-code framework for custom AI model building, including LLMs.

Power-efficient and scalable edge ML solutions for various industries.
Frontier AI safety lab founded by Ilya Sutskever (ex-OpenAI co-founder). $5B+ raised at ~$50B valuation. Singular focus: safe artificial superintelligence.

Deeploy focuses on enhancing human interaction with Machine Learning, ensuring ML models are explainable, accountable, and trustworthy.

Anomalo is the data-quality + unstructured-data observability platform — automatic monitoring for structured tables + LLM-readiness scoring for documents.

London-based AI video generator — Yepic Studio creates lifelike avatar videos with smooth lip-sync, 115+ languages, custom avatar creation. Personalization at scale.

AI-powered platform for evaluating and optimizing AI applications and outputs.

Build and deploy flexible conversational AI for superior customer experiences.

AI platform for edge machine learning and IoT solutions.

Self-hosted, open-source AI coding assistant — privacy-first GitHub Copilot alternative.

Generate engaging videos with your AI clone in 2 minutes — UGC ads, social videos, course lessons. YC-backed creator-economy video engine.

Alibaba's flagship text-to-image model — top open-weights image generator with strong text rendering.

Web data extraction and knowledge graph creation.
It depends on whether you need open weights or a hosted API. Llama, Mistral, and DeepSeek lead the open-weight side for self-hosting and fine-tuning, while Hugging Face is the hub for finding and comparing thousands of them. For generative media, FLUX and Stability AI publish open image models. Match the license and hosting model to your deployment, not just the benchmark scores.
An open-weight model ships its trained parameters publicly, so you can download, run, and fine-tune it on your own hardware instead of calling a vendor API. Llama, Mistral, and DeepSeek are open-weight, so you control where the model runs and what data it sees. Note that open weights is not the same as fully open-source, since training data and code are often not released.
Closed models are accessed only through an API, with the provider controlling the weights, updates, and pricing. Open-weight models such as Llama and Mistral can be downloaded and run anywhere, trading some peak capability for control, privacy, and no per-call vendor lock-in. Many teams use closed models for frontier tasks and open models for high-volume or sensitive workloads.
Hugging Face is the central hub for discovering, downloading, and sharing machine-learning models, datasets, and demos. Teams use it to compare open-weight models, pull pre-trained checkpoints into their code, and host inference endpoints. It works as both a marketplace and the de facto registry for the open-model ecosystem.
Start with the task and the deployment constraint, then test on your own data. Pick an open-weight model like Llama or Mistral when you need on-prem control or predictable high-volume cost, and a hosted model when you want top capability without managing infrastructure. Compare on your real prompts rather than public leaderboards, since benchmark rank rarely matches production performance.
A foundation model is a large model trained on broad data that can be adapted to many downstream tasks through prompting or fine-tuning, rather than built for one job. Language models like Llama and image models like FLUX are foundation models, where the same base powers chat, code, summarization, or generation depending on how you apply it.
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