660 tools
Free planAI models & APIs
Holistic Evaluation of Language Models (HELM) is Stanford CRFM's living benchmark for transparent language model evaluation. It emphasizes broad coverage, multi-metric measurements, standardization, and freely accessible data and analysis on the web.
Free tier unknownAI models & APIs
Hemlock provides force-annotated human demonstration data for physical AI using an EMG Bracelet and API. Teams can collect their own tasks or order Hemlock-collected datasets with finger-level force estimates beyond video alone.
Free tier unknownAI models & APIs
Hermes 3 is an open frontier language model family from Nous Research emphasizing long context retention, multi-turn dialogue, roleplay, internal monologue, and agentic function calling. The model page situates Hermes 3 within Nous Research’s broader open-source Hermes and training releases.
Free planAI models & APIs
Higress is a CNCF Sandbox open-source AI gateway built on Istio and Envoy. It unifies LLM API access, MCP tool routing, security, traffic governance, and observability for AI agents and production inference workloads.
Free tier unknownAI models & APIs
HikeAI markets next-generation artificial intelligence solutions for modern enterprises, emphasizing advanced machine learning and developer-first APIs. Public pages describe state-of-the-art algorithms built for performance and scale, though detailed product modules and pricing are not exposed in static site copy.
Free tier unknownAI models & APIs
hiloop offers autoresearch as a service, running thousands of directed experiments against a customer-provided metric and scorer. Use cases span post-training eval climbing, inference optimization, synthetic RL environments, and signal-processing detection tasks.
Free to startAI models & APIs
Hive provides enterprise AI models and APIs to understand, search, and generate content across text, image, video, and audio. Customers use it for moderation, brand safety, fraud detection, and generative media at scale.
Free tier unknownVoice & speech
Hopper builds fast inference for voice agents by training and serving custom STT, TTS, and speech LLMs on a customer’s production calls. The company compares its models on latency and token cost versus general-purpose LLMs and offers engineering-led onboarding for voice stacks.
Free tier unknownHR & recruiting
HrFlow.ai builds Hiring SuperIntelligence APIs and agents that parse, score, match, and enrich talent data using models trained on large-scale hiring outcomes. Customers include staffing agencies, job boards, recruiting firms, and enterprises automating sourcing, CV scanning, and workforce questions through Studio apps.
Free tier unknownAI models & APIs
Hub (Hub.xyz) captures real-world physical experience data for embodied AI and robotics. Backed by Y Combinator, it operates a global contributor network and delivers frontier datasets including egocentric RGB-D video, teleoperation trajectories, hand tracking, and tactile sensing for labs and robotics companies.
Free planAI models & APIs
Hugging Face is the central collaboration platform and repository for machine learning, hosting over 1 million open-source models, datasets, and ML demonstration applications (Spaces). It provides Inference Endpoints, Spaces hosting, AutoTrain, and the Transformers library ecosystem.
Free planAI models & APIs
Hugging Face Spaces hosts shareable AI demo apps and microsites built with Gradio or Streamlit, showcasing community models for image, video, text, audio, and agent tasks with optional paid hardware backends.
Free planVoice & speech
Hume AI builds emotionally intelligent voice, speech, and conversational AI with APIs for text-to-speech, speech-to-speech EVI, voice cloning, and human-feedback evaluation. Researchers and product teams use it to measure and improve how AI sounds and feels in real conversations.
Free tier unknownAI models & APIs
Humiris is an adaptive AI cloud that routes requests across frontier and open models with secure memory, agent governance, and built-in MCP integrations. Teams get one gateway for models and tools like Notion, GitHub, Slack, and travel APIs with policy-aware orchestration.
Free tier unknownMusic & audio
Gramosynth by Rightsify generates large-scale licensed music and multimodal training datasets for AI labs. It builds on Rightsify’s licensed music corpus to produce synthetic audio data pipelines for model training under enterprise licensing agreements.
Free planAI models & APIs
IIMAGINE helps decision-makers test LLMs on their own work, route tasks to the best model, and ground advice in a SCOPED context framework. Agents and connections ingest business data so recommendations reflect objectives, constraints, and deadlines.
Free planAI models & APIs
ImageBind is Meta AI’s multimodal research model that embeds text, image/video, audio, depth, thermal, and IMU sensor data in one shared space. The public demo lets visitors bind modalities—for example, audio-driven image generation.
Free planImage generation & editing
Image Creator AI generates text-to-image and image-to-image visuals through a simple web UI and developer API. The platform advertises fast generation, multilingual prompts, daily free Z-Image Turbo credits, and subscription plans with large model libraries for images and video.
Free planImage generation & editing
Image Super-Resolution is an open-source research project and Python library from idealo for training and running CNN-based single-image super-resolution models such as RDN and RRDN. Documentation covers installation, model weights, inference notebooks, and architecture references on GitHub Pages.
Free planImage generation & editing
Imagga provides image and video recognition APIs for tagging, categorization, visual search, moderation, OCR, and face recognition. Subscription plans scale by monthly API call volumes with a free technology test tier and paid Indie and Pro bundles.
Free planImage generation & editing
ImaginePro is a professional AI image generation platform offering Midjourney-class models, Flux, and SDXL through a web studio and developer API. It targets designers and engineers who need commercial licensing, fast generation, and REST access without running Discord bots.
Free tier unknownImage generation & editing
imgsys.org is a generative image model arena from fal.ai where visitors compare model outputs side by side, vote on quality, and browse public rankings. It supports prompt testing across models with methodology documentation for how rankings are computed.
Free planAI models & APIs
Infinity (InfinityFlow) is an open-source AI-native database from InfiniFlow built for LLM applications needing hybrid vector, sparse, tensor, and full-text search. It emphasizes millisecond-scale queries, rich data types, and a single-binary deployment with a Python API.
Free planChatbots & assistants
Inflection AI builds human-centered foundation models and ships Pi, a personal intelligence assistant designed for empathetic, context-aware conversation. The corporate site highlights Pi for consumers and research into personal intelligence rather than a traditional SaaS pricing grid.
Showing 336 of 660 tools
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