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Together AI in brief
The best inference infrastructure for open source models in production. Faster and more reliable than Hugging Face Inference for high-load applications.
- PriceUsage-based API
- CategoryAI Chat
- RecommendedYes
The Essentials
- Cloud inference platform for open source models (Llama, Mistral, Qwen, etc.)
- OpenAI-compatible API, easy migration from openai-python
- Usage-based pricing, generally cheaper than GPT-4 for comparable models
- Very low latency thanks to dedicated GPU infrastructure
What is Together AI?
Together AI is a cloud inference platform specialized in open source models. Instead of managing GPUs yourself or using Hugging Face Inference API (often slow), Together provides an optimized infrastructure to run Llama 3.3 70B, Mistral Large, Qwen2.5, DeepSeek, and dozens of other models with low latency and production reliability. The API is OpenAI-compatible, meaning you just change the base URL and API key in your existing code.
Strengths
OpenAI API Compatibility
Trivial migration from GPT-4 to Llama 3.3: change the base URL and model name, your existing code works. No new SDK to learn.
Extensive Model Catalog
100+ open source models available: Llama, Mistral, Qwen, Falcon, DeepSeek, etc. The catalog is regularly updated with new releases.
Competitive Pricing
Llama 3.3 70B tokens on Together cost a fraction of GPT-4o. For high volumes with capable open source models, the savings are real.
Limits
API Only, No Chat Interface
Together isn't a consumer chatbot. It's developer infrastructure. If you want to test models without coding, use HuggingChat.
No Proprietary Models
No GPT-4, no Claude, no Gemini. Together is open source only. For frontier proprietary models, stick with native APIs.
Pricing
Usage-based billing by model and token volume. No fixed subscription. Check together.ai/pricing for per-model rates.
Alternatives
Together AI = fast, reliable open source inference. Alternative Groq (groq.com) = ultra-fast inference on specialized hardware (LPU). Alternative Fireworks AI (fireworks.ai) = direct competitor, similar catalog.
Verdict
Together AI is the default choice for developers who want to run open source models in production without managing GPU infrastructure. OpenAI compatibility and competitive pricing make it a natural complement for cutting LLM costs while keeping the same code patterns.
FAQ
Is Together AI really compatible with the OpenAI SDK?
Yes. Just set base_url="https://api.together.xyz/v1" and api_key=TOGETHER_API_KEY in the OpenAI client. The rest of your code doesn't change.
What are the most popular models on Together?
Llama 3.3 70B Instruct, Mistral 7B Instruct, and Qwen2.5 72B are among the most used. DeepSeek V3 is also available.
Does Together AI offer fine-tuning?
Yes, Together AI offers fine-tuning options on open source models. See the documentation at together.ai.
What is the context limit on Together AI?
Depends on the model. Llama 3.3 supports 128K tokens on Together. Check each model's page for exact limits.
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Screenshots Together AI
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Together AI : 0/10.
The best inference infrastructure for open source models in production. Faster and more reliable than Hugging Face Inference for high-load applications..
Test Together AI yourself
A free trial is available. Plan thirty minutes to form your own opinion.
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Together AI
Usage-based API