Free-tier ai infrastructure

Deepgram

Deepgram is an enterprise voice AI platform that provides APIs for speech-to-text, text-to-speech, voice agents, and audio intelligence. It is designed for developers, product teams, and enterprises that need to build real-time or batch voice experiences with cloud or self-hosted deployment options.

Hugging Face is an AI collaboration platform where the machine learning community builds, shares, and discovers models, datasets, and applications. It provides a central hub for experimentation, deployment, and collaboration across a wide range of machine learning workflows.

AssemblyAI

AssemblyAI provides speech-to-text, streaming speech-to-text, speech understanding, guardrails, and an LLM gateway for voice and audio applications. The platform exposes APIs for prerecorded transcrip...

Tavily

Tavily provides a single API for connecting AI agents to the web with real-time search, extraction, research, and crawling capabilities.

Pinecone

Pinecone is a fully managed vector database platform built to help teams develop knowledgeable AI applications at production scale. It provides fast similarity search, hybrid retrieval, namespaces for data partitioning, and real-time indexing for dynamic datasets.

OpenRouter

OpenRouter is a unified API and chat interface for accessing large language models from multiple providers through a single OpenAI-compatible endpoint. It supports model browsing, routing, fallback selection, and API key management for developers integrating LLMs into applications.

Portals

Portals Intelligent Knowledge System is an AI-powered no-code workspace for building, deploying, and collaborating with agents. It combines agents, a knowledge base, a data system, and web connectors in a single environment designed for complex work.

Voice Clone

Voice Clone is a browser-based voice cloning and text-to-speech product that records or uploads a voice sample, analyzes the speaker’s characteristics, and generates speech from typed text in the clon...

Noirdoc

Noirdoc is a German-language AI chat and API proxy service that pseudonymizes sensitive input before it reaches an LLM. It detects and replaces personal data, company names, locations, tax IDs, URLs, ...

Paperspace by DigitalOcean

Paperspace by DigitalOcean is a cloud GPU and accelerated compute platform for developing, training, and deploying machine learning workloads. The service includes managed notebooks, GPU machines, and deployment endpoints, with Core for virtual servers and Gradient for ML workflows.

Lumenfall is a unified API for AI image and video generation. It exposes an OpenAI-compatible endpoint that routes requests to models from providers such as OpenAI, Google, Black Forest Labs, Stability AI, fal.ai, Replicate, Runware, xAI, Alibaba Cloud, and BytePlus.

Composio

Composio is an integration and agent execution platform that helps teams connect AI agents to external apps and tools. It provides managed authentication, just-in-time tool calls, sandboxed execution, and support for parallel workflows across more than 1,000 applications.

Mistral AI

Mistral AI provides frontier AI models, assistants, agents, and enterprise services for organizations building tailored AI systems. Its platform supports chat, search, analysis, content creation, coding, and agentic workflows across cloud, on-premises, and edge deployments.

Fireworks AI

Fireworks AI is a cloud platform for running, tuning, and deploying generative AI models. It provides serverless inference, on-demand GPU deployments, and fine-tuning workflows for open models, with model access exposed through an API and developer tooling.

Clarifai

Clarifai is an AI platform for deploying, serving, and managing models with a focus on fast inference and reasoning on GPUs. It supports serverless and dedicated compute, OpenAI-compatible APIs, custom model uploads, and deployment options for local, hybrid, VPC, and on-prem environments.