Together AI

🤖 Managed Inference

Finetuning Open Source Models, Serverless inference endpoints

🏢 San Francisco, CA, USA📅 Since 2022★ 9.3/10🌐 Website ↗
Avg Latency
~15-30ms
Rate Limits
1,000 RPM (Pro)
Free Tier
✓ Available
API Protocol
OpenAI-compatible API

The Gold Standard for Open-Source Inference

Together AI has established itself as the leading inference engine for open-source foundation models. Utilizing their proprietary FlashAttention-3 and highly optimized custom routing architectures, Together routinely benchmarks as one of the fastest providers in the world for models like Meta’s Llama 3 and Mistral’s Mixtral. This extreme optimization allows them to offer inference at a fraction of the cost of proprietary models like GPT-4.

Seamless Integration

The platform is designed specifically to capture frustrated OpenAI developers. Together AI provides a 100% OpenAI-compatible API endpoint. This means a developer can switch an entire application from ChatGPT to Llama 3 simply by changing the Base URL and the API Key in their existing SDK code. There is zero architectural rewrite required.

Enterprise Privacy and Fine-Tuning

For enterprise clients, Together AI offers a strict zero-data-retention policy, guaranteeing that customer inputs are never used to train future models. Beyond raw inference, they offer a highly streamlined fine-tuning pipeline, allowing companies to upload proprietary datasets and spin up custom-tuned LoRA models hosted on serverless endpoints within minutes.

Supported Workloads

LLMVisionEmbedding

Pros & Cons

Pros
  • Fastest open-source inference engine
  • Flawless OpenAI API drop-in replacement
  • Extensive model catalog
  • Highly competitive pricing
Cons
  • Rate limits can be strict for free tiers
  • Occasional model cold starts on rare variants

Served Models

Llama 3, Mixtral 8x22B, Qwen 1.5, DeepSeek

Data Privacy Policy

Zero Data Retention (Enterprise)

OpenAI-compatible API

Drop-in replacement for OpenAI. Change one line of code — point your base URL to Together AI's endpoint instead of api.openai.com. All existing OpenAI SDKs (Python, Node.js) and libraries like LangChain or LlamaIndex will work out of the box.

Quick Start Snippet
Python
from openai import OpenAI
# Initialize the client pointing to Together AI
client = OpenAI(
 api_key='YOUR_API_KEY',
 base_url='https://www.together.ai/v1'
)
# Run inference
response = client.chat.completions.create(
 model='your-chosen-model',
 messages=[{'role': 'user', 'content': 'Hello, world!'}]
)
WebsiteVisit Official Site ↗
Billing Model
Per-token billing

You pay purely based on input and output tokens. The most cost-effective and predictable model for LLM inference.

Generous Free Tier Available

Start building without a credit card. Perfect for prototyping and testing the API before scaling into production workloads.

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Together AI
🤖 Managed Inference
✓ Free tier available
Get Quotes
OpenAI SDK Compatible
Start for Free (No CC)
Scale to 0 (No idle costs)

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