River AI is a Palo Alto–based AI startup founded by former xAI co-founder Igor Babuschkin, building a full-stack platform for custom, open-weight mode…
Naïve builds an autonomous company runtime — AI agent infrastructure that gives agents real-world execution capability across cloud compute, databases…
Intelligence is a San Francisco product lab building large-scale evaluation platforms for frontier AI models, best known for Design Arena — a crowdsou…
Smallest.ai is a full-stack voice AI platform that owns the entire conversational loop, from raw waveform to response, so enterprises can build and sc…
Pangram Labs builds AI-generated content detection systems for text and images, claiming over 99% accuracy on AI-assisted and mixed human-AI writing. …
Fish Audio develops multilingual AI voice generation and voice cloning infrastructure for creators and developers, with text-to-speech APIs and audio …
Etched is an American semiconductor startup building Sohu, an ASIC purpose-built for transformer inference rather than general-purpose GPU compute. Th…
SkyPilot is an AI compute platform that commercializes the popular open-source SkyPilot project developed at UC Berkeley's Sky Computing Lab. It acts …
Infinity is an AI infrastructure company building a universal inference software layer — a CUDA alternative — that makes any AI chip (GPUs, SRAM, mobi…
MicroAGI is a Berlin-based data research lab accelerating embodied AI by recording real-world human task execution through camera-wearing workers, gen…
Runta builds the execution layer for AI agents: isolated, stateful microVM runtimes that let long-running agents run, be governed, and be recorded. Th…
Spectro Cloud builds a unified management platform for Kubernetes, virtual machines, edge computing, and AI/GPU infrastructure across public cloud, pr…
Lyzr builds an enterprise agent infrastructure platform — a full-stack 'Agentic Operating System' for creating, orchestrating, governing, and evaluati…
Ollama is an open model platform that lets developers download, run, and manage large language models locally on their own machines or servers via CLI…
Gradium is a Paris-based AI company building ultra-low latency voice foundation models that enable near-instant, expressive, and multilingual voice AI…
Prime Intellect is an AI infrastructure company that enables training and deploying frontier AI models across decentralized, globally distributed comp…
Bespoke Labs is an applied AI company that builds the reinforcement learning environments, data curation systems, and infrastructure used to train, ev…
Together AI provides an AI-native cloud platform for inference, fine-tuning, GPU clusters, and large-scale model training, helping AI engineers and re…
1001 is a GCC- and London-based deep-tech startup building a localized, sovereign AI operating system for critical physical infrastructure — aviation,…
Scaled Cognition is a reliability-focused AI lab building APT (Agentic Pretrained Transformer), a frontier model purpose-built for enterprise customer…
Netris provides network automation, abstraction, and multi-tenancy (NAAM) software for GPU clouds, AI data centers, and AI factories. Its platform aut…
Mirendil is a San Francisco frontier AI research lab building 'AI that builds AI' — training frontier models that are expert at AI R&D and wrapping th…
RunPod is a GPU cloud infrastructure provider that enables developers, researchers, and AI companies to deploy and scale GPU workloads on demand. The …
Coval is a platform for evaluating AI voice and chat agents by running simulated interactions, adapting testing techniques from self-driving cars to A…
Upscale AI provides high-performance networking solutions for AI infrastructure. The company delivers open-standard connectivity for specialized compu…
Aether AI is a frontier AI research company building causal world models — systems that reason through causal mechanisms rather than statistical corre…
Taste Labs is building the data and infrastructure layer that gives AI models and agents "taste" — the ability to judge subjective quality rather than…
PhysicsX is an AI company accelerating industrial innovation by combining AI-driven multiphysics inference with numerical simulation to improve the de…
ZeroDrift is an AI compliance firewall that enforces regulatory and company-policy rules on AI-generated messages before delivery, blocking, rewriting…
Mecka (Mecka AI) is a New York–based startup building the data engine for Physical AI — it collects real human motion data from body sensors and iPhon…
Inherent is a London-based frontier AI lab building Faraday, an AI system for open-ended scientific discovery where humans and self-improving AI colla…
Semantic KV caching layer built for LLM inference, enabling AI applications to reduce inference costs and latency by reusing cached computation across…
OpenRouter provides developers with seamless access to 500+ AI models through a single unified API, eliminating the need to rewrite code or renegotiat…
Serverless cloud platform for developing, deploying, and scaling AI applications. Developers can run any code in the cloud without managing infrastruc…
Embeddings-based search infrastructure providing a meaning-aware search API for AI applications. Exa trains embedding models to convert web pages into…
NanoClaw is a security-focused, open-source personal AI agent that runs each agent in an isolated Docker/Linux container on Anthropic's Claude Agent S…
Decart is an AI research lab building real-time generative and world models plus the inference stack that runs them. Its products include DOS (a hardw…
Graphon AI is a pre-model intelligence layer that transforms enterprise multimodal data (documents, video, audio, logs, databases) into persistent rel…
Vapi is building the leading developer platform for conversational voice AI agents, abstracting away the complexity of building these agents and manag…
Ethos is an AI-powered expert-matching platform that scours hundreds of millions of profiles to identify niche experts by analyzing their academic wor…
Nace AI builds MetaModel, an AI system that dynamically generates small, task-specific language models for enterprises using a Hypernet architecture t…
Aligned AGI lab building FDM-1, a foundation model optimized for efficient computer use tasks that interact with applications via graphical interfaces…
Ineffable Intelligence is a London-based AI research lab founded in late 2025 by David Silver, former reinforcement learning lead at Google DeepMind a…
Comfy develops ComfyUI, an open-source node-based platform for generative AI that enables creators to build visual AI workflows, used by over 1 millio…
Shade is an AI-native unified file system for creative and post-production teams, combining cloud storage, real-time large-file streaming into editing…
AI research lab building self-learning expert agents that continuously adapt and develop domain expertise through experience rather than static traini…
Creao AI is an agentic AI platform where AI super agents autonomously execute tasks, write code, call APIs, and deliver reusable automation workflows.…
AfterQuery is a San Francisco-based applied research lab that builds expert-curated AI training datasets and model evaluation suites for frontier AI l…
Applied Compute is a San Francisco-based AI startup founded by former OpenAI researchers that builds 'Specific Intelligence' — proprietary AI agents t…
Mistral AI is a French AI company building fast, open-source, and secure large language models for developers and enterprises. Known for efficient, hi…
Sycamore is a Palo Alto AI infrastructure startup building a trusted agent operating system that enables enterprises to deploy, govern, and orchestrat…
AI video research lab and creator platform building full-stack foundation models for short-form video creation, editing, and marketing. Formerly known…
Respan (formerly Keywords AI, YC W24) is an AI observability and LLM engineering platform that lets teams trace, evaluate, and improve AI agents. It c…
Sequen provides real-time search, ranking, recommendation, and personalization infrastructure for consumer-internet and e-commerce companies. Its plat…
Gumloop is a no-code AI automation platform that enables users to build and deploy AI-powered business workflows through drag-and-drop modular compone…
AMI Labs is a frontier AI research lab building world-model-based intelligence systems with planning, memory, and safety controls for real-world appli…
Guild.ai is a San Francisco company building a control plane for AI agents in the enterprise. The platform lets teams build, deploy, govern, and share…
Encord is a data development platform for AI that helps teams curate, manage, and label training data at scale. The company serves 300+ AI teams inclu…
Layercode provides voice AI infrastructure for developers, enabling production-ready, low-latency voice AI agents using TypeScript. The platform handl…
World Labs is advancing spatial intelligence by building foundational AI models that can perceive, generate, and interact with 3D worlds. Founded by A…
Fundamental builds large tabular models and enterprise AI infrastructure for prediction and analysis on complex business data, focused on tabular reas…
Goodfire is an AI interpretability research company focused on understanding and designing AI systems through its flagship platform Ember, which decod…
ElevenLabs is the leading AI voice technology platform, offering ultra-realistic text-to-speech, voice cloning, and audio AI tools used by content cre…
AI research company building adaptive models that learn continuously without expensive retraining, using less computing power than leading AI models, …
Langbase is a serverless AI developer platform for building, deploying, and scaling AI agents. It processes 700TB+ of vector memory and billions of AI…
poetiq is an AI research and engineering company building reasoning systems and self-improving intelligence infrastructure, founded by former Google D…
Fiddler AI provides an AI observability and governance platform for monitoring model performance, drift, bias, and risk across machine learning and ge…
Frontier AI research lab building next-generation AI models for semiconductor design. Develops recursive self-improvement cycle where AI designs silic…
AI video generation platform that transforms text into professional videos using customizable avatars and voiceovers in over 140 languages, serving en…
LiveKit is an open-source infrastructure platform for building realtime voice, video, and AI agent applications. Their platform powers products like O…
Bolna is a voice AI platform that lets businesses design, deploy, and manage AI phone agents for outbound and inbound calls across sales, collections,…
Enterprise voice AI platform offering Speech-to-Text, Text-to-Speech, and Voice Agent APIs for real-time and batch use, deployable in cloud or self-ho…
Enterprise-grade platform running powerful AI on local devices without cloud dependency, enabling companies to work with sophisticated AI models while…
Protege operates a governed marketplace platform for ethical sourcing of multimodal, real-world AI training data with compliant data exchange capabili…
LMArena develops and operates large-model evaluation infrastructure, including comparative benchmarks and community-driven testing workflows for front…
General Intuition is a public-benefit frontier research lab building foundation models for environments that require deep spatial and temporal reasoni…
Lemon Slice is a research and product lab building real-time interactive AI avatars, using its own video-diffusion models to turn any single image int…
Enterprise-grade AI voice assistants handling complex customer interactions across hospitality, healthcare, and financial services, spun out of Cambri…
Runware provides a unified AI API platform that aggregates 300+ model classes and hundreds of thousands of AI model variants behind a single consisten…
Fastest generative media platform for developers providing access to 1,000+ production-ready AI models for image, video, audio, and 3D generation thro…
Neuromorphic computing startup building brain-inspired analog hardware to achieve biology-scale energy efficiency for AI workloads, founded by former …
Black Forest Labs is a generative AI company that created FLUX, one of the most advanced open-source image generation models, and previously pioneered…
SF Compute provides rentable, large, low-cost GPU clusters for AI pre-training workloads. The platform operates as a marketplace connecting AI teams w…
Physical AI company building Newton foundation model that fuses real-time multimodal sensor data with natural language to interpret and act on physica…
Luminal builds a compiler and runtime for AI inference that treats compilation as a search (superoptimization) problem, automatically compiling models…
GenPeach AI develops multimodal generative foundation models for human-centric image and video creation, powering digital humans, virtual influencers,…
Tavus is the human computing company building emotionally intelligent AI humans (PALs - Personal Affective Links) that communicate through text, voice…
Inception (Inception Labs) is a Palo Alto-based AI research company building diffusion large language models (dLLMs) that generate text and code in pa…
DualBird provides a cloud-native hardware-software data and AI infrastructure engine that delivers 10-100x faster performance and 50-90% lower costs t…
Neuro-symbolic AI company developing foundational model for conversational agents combining generative AI with rule-based AI for controllable interact…
Cartesia builds real-time voice and multimodal AI models with low-latency inference for production applications. Its platform combines foundational mo…
Mem0 is a universal, self-improving memory layer for LLM applications that enables them to remember and learn from user interactions over time, poweri…
Inference provides a distributed, serverless platform that lets developers run open-source AI models without managing infrastructure. The company aggr…
Dedalus Labs builds infrastructure for agentic AI, with products and APIs for deploying multimodal, multi-tool agents and experimenting with autonomou…
Reinforcement fine-tuning platform (YC W25) that helps companies build task-specific AI models that outperform foundation models at a fraction of the …
Reducto provides a high-quality AI document ingestion and parsing API for large language models. The Y Combinator-backed company processes nearly a bi…
Reflection AI is building frontier open intelligence accessible to all, developing open-weight AI models. Founded by former Google DeepMind researcher…
Frontier coding data provider for foundation models, using gamified bounty platform with 14,000+ vetted engineers to create expert-quality training da…
Universal memory API and context engineering platform for AI applications. Provides long-term and short-term memory infrastructure for AI agents, powe…
Paid is a monetization platform for AI-native companies, enabling results-based billing for AI agents. Founded by Outreach co-founder Manny Medina, it…
Modular builds a unified AI compute platform that lets developers run AI models across NVIDIA, AMD, and other hardware without rewriting code per chip…
Cohere builds foundational AI models and enterprise solutions for search, generation, and agentic workflows. Their platform includes Command, Embed, R…
Micro1 is an AI platform for human intelligence that helps AI companies find, vet and manage human contractors for data labeling and training, transfo…
Brain Co. is a San Francisco company building agent-native operating systems for large institutions in the public and private sectors. It delivers cus…
You.com builds AI search and retrieval infrastructure for teams that need domain-specific, production-ready search inside their own products and workf…
Artificial Societies builds large-scale AI simulations of human societies to help organizations predict how real-world audiences think, feel, and resp…
Interhuman AI builds the social intelligence layer for AI systems, enabling them to read, interpret, and respond to human behavior in real time. Their…
Domino Data Lab provides an enterprise AI and MLOps platform for model development, deployment, governance, and compliance. Trusted by over 20% of the…
Open-source cloud infrastructure providing secure sandboxed environments for AI agents to run code and complete complex tasks, trusted by 88% of Fortu…
Tilde Research is an AI infrastructure company building efficient mixture-of-experts (MoE) training and inference systems. It develops novel architect…
Reka builds multimodal foundation models and enterprise AI systems that combine text, image, audio, and reasoning capabilities for production applicat…
Radical AI is building next-generation AI infrastructure with a focus on custom silicon and compute systems optimized for large-scale model training a…
AI research lab founded by former OpenAI CTO Mira Murati, building Tinker, an API for distributed LLM fine-tuning that makes model customization acces…
Computer vision company spun out of Intel, developing AI-powered smart vision systems for robotics, biometrics and access control markets using stereo…
LGND is building 'ChatGPT for the Earth,' a geospatial AI infrastructure platform that makes the world's satellite and geographic data as accessible a…
ZeroEntropy provides a high-accuracy search API over unstructured data for AI agents and RAG applications. The YC-backed company builds smarter retrie…
Botpress is an AI agent infrastructure platform that gives developers the tooling to build, deploy, and scale production-ready AI agents. Founded in 2…
Veris AI is a simulation-first training and certification platform for enterprise AI agents. Their platform provides high-fidelity sandbox environment…
Mail0 (also known as Zero) is an open-source, AI-native email client that uses artificial intelligence to prioritize emails, summarize threads, draft …
Chalk builds a real-time inference data platform that gives ML and AI teams low-latency feature computation, retrieval, and production orchestration f…
Self-hosted inference platform for deploying AI models enabling enterprises to deploy any model on their infrastructure with production-grade manageme…
Fastino builds task-specific language models and small-model infrastructure for production AI workloads, focused on speed, accuracy, and agentic AI us…
Recraft is a text-to-image model and design platform for photorealistic assets, vector generation, custom brand styles, mockups, and collaborative cre…
Nous Research is an open-source AI lab developing large language models and decentralized training infrastructure, including Hermes models and the Psy…
Augrade is an AI-powered spatial computing platform that automates heavy industry design and engineering, generating manufacturing and construction-gr…
ORO is a human intelligence protocol that enables individuals to contribute private data to AI model training while preserving privacy through zkTLS a…
Lazarus AI (Lazarus Enterprises, Inc.) is a Boston/Cambridge, MA-based enterprise AI company focused on document understanding and intelligent data pr…
Browser Use is an open-source framework that enables AI agents to autonomously navigate and interact with websites like a human user. Built by ETH Zur…
LlamaIndex is a data framework for LLM applications that enables developers to connect, index, and query custom data sources with large language model…
Arize AI provides an AI engineering platform for observability and evaluation of LLM apps, AI agents, and RAG systems. It lets teams trace, debug, eva…
Zo Computer is building a new category of personal computing — an intelligent cloud computer powered by AI. The platform enables users to build powerf…
BenchFlow is a San Francisco-based frontier environment lab building a unified platform to evaluate AI models and agents using standardized, reproduci…
ElevenLabs is the leading AI voice technology platform, offering ultra-realistic text-to-speech, voice cloning, and audio AI tools used by content cre…
Open-access AI cloud providing fast, affordable GPU compute, serverless inference, and dedicated hosting through a decentralized marketplace, helping …
/dev/agents is building a next-generation operating system purpose-built for AI agents, founded by former Google and Android executives who believe a …
Wordware is a web-hosted IDE for building AI agents, enabling non-technical domain experts and engineers to collaboratively create, iterate, and deplo…
Roboflow provides end-to-end computer vision tools that enable developers and enterprises to build, deploy, and manage vision AI models. The platform …
Adaline provides an LLMOps platform for product and engineering teams to iterate, evaluate, deploy, and monitor prompts and AI applications, helping t…
GMI Cloud is an AI-native GPU cloud platform offering serverless inference and dedicated NVIDIA GPU clusters (H100, H200, and Blackwell) for training …
Anara (formerly Unriddle) is an AI-powered research assistant that helps scientists and academics rapidly find insights across research papers, enabli…
Distributional provides enterprise AI testing platform that helps teams discover, triage, and resolve issues with AI application reliability, reducing…
Third Dimension AI is a 3D generative AI platform that creates high-fidelity, rendering engine-ready environments from text prompts and images. The pl…
Letta builds a platform and open source framework for stateful AI agents with memory, helping developers deploy autonomous agents that operate over lo…
AI model routing and interpretability platform using breakthrough Model Mapping technology to unpack LLMs into interpretable architectures. Intelligen…
AI voice platform enabling businesses to build and deploy AI-powered voice agents for phone operations, contact centers, and customer service. API-dri…
Contextual AI provides an enterprise platform for building specialized RAG 2.0 agents that enable domain-specific AI applications with advanced retrie…
Ema builds a Universal AI Employee platform for enterprises, using multi-agent AI architecture to automate complex workflows across HR, customer suppo…
Vectara provides a retrieval-augmented generation platform with enterprise search, grounded generation, and evaluation tooling to help teams build pro…
Decentralized open-source AGI platform backed by Founders Fund and Pantera Capital, building an open AGI network where multiple AI agents collaborate …
bem provides a production layer for unstructured data, turning documents, audio, images, and other messy inputs into deterministic, schema-enforced ou…
Pika develops consumer-first generative video tools that let users create and edit short-form videos from prompts, images, and clips through an intuit…
GPTZero builds AI detection and content provenance tools that identify AI-generated text and verify the origin of digital content. It serves educators…