Together AI

What is Together AI?

Together AI hosts a wide range of open-source models ready to call via API, and also offers dedicated GPU infrastructure for fine-tuning and running custom models, aimed at teams that want open-model flexibility without managing their own hardware.

Key features

• Large catalog of hosted open-source models ready via API
• Fine-tuning infrastructure for customizing models on your data
• Dedicated GPU endpoints for predictable, isolated performance
• Competitive pricing compared to major closed-model providers
• Support for running and serving your own custom models

How to get started

1. Sign up at together.ai and generate an API key
2. Choose a hosted model from the catalog, or upload your own
3. Call the API for inference, or start a fine-tuning job
4. Scale to dedicated endpoints for production workloads

Use cases

• Running open-source models without managing GPU infrastructure
• Fine-tuning a model on proprietary or domain-specific data
• Cost-sensitive applications comparing open vs. closed models
• Hosting custom or niche models not available from major labs

Together AI vs. alternatives

FAQ

Is Together AI free to use?

Together AI's plans: Usage-based, pay per token or per GPU-hour. Pricing and free-tier limits change over time, so check the official site above for the latest details.

What is Together AI used for?

Hosted open-source models with fine-tuning support.

Who is Together AI best for?

Together AI is a good fit for running open-source models without managing GPU infrastructure, or fine-tuning a model on proprietary or domain-specific data.

What are the alternatives to Together AI?

Commonly compared alternatives include Replicate and Groq, see the comparison above for how they differ.