What is Together AI?
Together AI is a cloud platform built around open-source AI models. Its core offer is inference: you call hosted open models such as gpt-oss, DeepSeek, GLM, Gemma, Llama and Qwen through an API, either on demand (serverless), in batches, with committed token-based capacity, or on dedicated hardware. The homepage also lists Together Link, which lets you run open models inside a harness you already use.
Beyond inference, the platform covers the rest of the stack. You can rent GPU clusters (B200, GB200, GB300, H100, H200), fine-tune top open models on your own data, run evaluations to measure model quality, and use managed storage for weights and datasets. Developers can also use documentation, cookbooks, demo apps and a voice agent toolkit to build their own products.
Key features
- Serverless inference for open-source models via API
- Batch inference for large asynchronous workloads
- Provisioned throughput with token-based pricing and a 99% uptime SLA
- GPU clusters on B200, GB200, GB300, H100 and H200 hardware
- Fine-tuning and custom training of open models on your data
- Model evaluations and managed storage for weights and data
Who is it for
- AI developers and engineers
- AI-native startups
- Enterprises running production AI workloads
- Research and ML teams
Pros and cons
- Broad selection of top open-source models in one platform
- Choice of pricing and infrastructure options from serverless to dedicated hardware
- Aimed at developers and businesses rather than end users
- Dedicated infrastructure and committed capacity are priced on request via sales
Together AI pricing
The vendor does not publish prices in a readable form (often pricing is shown only after signing in).
Is Together AI free?
The vendor does not state this clearly on the homepage or pricing page.
Together AI alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 OpenAI Platform | 0,10 USD | ? | APIs & models |
 Cline | not listed | yes | APIs & models |
 Google AI Studio | 0,75 USD | ? | APIs & models |
 Fireworks AI | 0.50 USD | no | APIs & models |
 Cerebras | 5 USD | trial | APIs & models |
 OpenRouter | not listed | yes | APIs & models |
All alternatives to Together AI →
FAQ
What is Together AI used for?
Full-stack AI cloud for running open-source models via API, fine-tuning them, and renting GPU clusters, aimed at developers and AI companies.
Is Together AI free?
The vendor does not state this clearly on the homepage or pricing page.
How much does Together AI cost?
The vendor does not publish prices publicly or requires sign-in.
What are the best Together AI alternatives?
Closest alternatives: OpenAI Platform, Cline, Google AI Studio, Fireworks AI, Cerebras.
Data checked October 12, 2026 on the vendor website (together.ai).