Best AI Open Source AI Tools in 2026
Run open-source models locally or in the cloud
Hugging Face
The largest open-source AI platform and model hub, hosting 500K+ models with inference endpoints, datasets, and community collaboration tools.
Hugging Face
Free
The largest open-source AI platform and model hub, hosting 500K+ models with inference endpoints, datasets, and community collaboration tools.
Ollama
Free
Free, open-source tool for running AI models locally on your computer with a simple command-line interface and OpenAI-compatible API.
Together AI
Free ($25 credits)
Cloud inference platform for running 200+ open-source AI models with pay-per-token pricing, fine-tuning, and batch processing.
LM Studio
Free
Free desktop application for discovering, downloading, and running open-source AI models locally with a clean GUI and OpenAI-compatible API server.
Replicate
Pay-per-use
Cloud platform for running open-source AI models via API, with one-line deployment and a community marketplace of thousands of models.
RunPod
$0.34/hr (RTX 4090)
GPU cloud platform offering on-demand and serverless compute for AI inference, training, and deployment at competitive per-second pricing.
Fireworks AI
Free ($1 credits)
High-speed inference platform optimized for the lowest latency on open-source models, with serverless and dedicated GPU deployment options.
Jan
Free
Open-source ChatGPT alternative that runs 100% offline on your computer, with optional cloud model connections and a developer-friendly local API.