Together AI
Cloud platform providing GPU infrastructure and APIs to run and fine-tune open-source AI models.
Updated May 2026
Overview
- Website
- together.ai
- Founded
- 2022
- Headquarters
- San Francisco, CA
- Ownership
- Private
- Segment
- Model Distribution & Serving
Product overview
Together AI provides a cloud platform for running, fine-tuning, and deploying open-source LLMs and other AI models at scale with optimized inference and cost-effective GPU clusters. Enterprises, developers, and AI startups use it as a cost-effective alternative to proprietary model APIs for production workloads. Distinct for low-cost open-source model inference, custom fine-tuning pipelines, and large-scale GPU cloud capacity focused specifically on generative AI.
Revenue model
Usage-based API pricing per token (e.g., Llama 3.3 70B $0.18/M input, $0.59/M output; Qwen 2.5 72B $0.12/M input, $0.18/M output); custom fine-tuning billed per GPU-hour; enterprise plans with volume discounts and dedicated support.
Moat
Together AI's key competitive moat is its proprietary software stack and cutting-edge systems research, including custom CUDA kernels, Transformer-optimized kernels, quality-preserving quantization, speculative decoding, and the Together Kernel Collection, which deliver up to 2x faster inference, 60% lower costs, and 90% faster pre-training on GPU clusters compared to standard infrastructure. This performance optimization, combined with a full-stack AI platform enabling seamless training, fine-tuning, and deployment of open-source models on user-owned data with abstracted orchestration, creates high switching costs for customers reliant on its superior speed, economics, and developer tools.
Stack lineage
What powers Together AI
- DeepSeek
Together AI hosts DeepSeek's models — e.g. deepseek-ai/DeepSeek-V4-Pro appears in their public model catalog.
- Google DeepMind
Together AI hosts Google DeepMind's models — e.g. google/gemma-4-31B-it appears in their public model catalog.
- Stability AI
Together AI hosts Stability AI's models — e.g. stabilityai/stable-diffusion-xl-base-1.0 appears in their public model catalog.
- Allen Institute for AI (Ai2)
Together AI hosts Allen Institute for AI (Ai2)'s models — e.g. allenai/Molmo-7B-D-0924 appears in their public model catalog.
- OpenAI
Together AI hosts OpenAI's models — e.g. openai/gpt-oss-120b appears in their public model catalog.
- Meta AI
Together AI hosts Meta AI's models — e.g. meta-llama/Llama-3.3-70B-Instruct-Turbo appears in their public model catalog.
- Mistral AI
Together AI hosts Mistral AI's models — e.g. mistralai/Voxtral-Mini-3B-2507 appears in their public model catalog.
- CoreWeave
Together relies on large-scale GPU cloud capacity similar to GPU cloud providers
- Alibaba Cloud
Together AI hosts Alibaba Cloud's models — e.g. Qwen/Qwen3.5-397B-A17B appears in their public model catalog.
- NVIDIA
Together AI hosts NVIDIA's models — e.g. nvidia/parakeet-tdt-0.6b-v3 appears in their public model catalog.
What Together AI powers
- Pika
Demi Guo, CEO of Pika: Together GPU Clusters provided training performance, expert support, and ability to scale for their AI creator community.
- Krea
Victor Perez, Co-Founder of Krea: Together AI provides performance and reliability for real-time image and video generation at scale.
- Cursor
Cursor partnered with Together AI to deliver real-time, low-latency inference at scale.
- Decagon
Decagon engineered sub-second voice AI with Together AI, achieving 6x cost reduction per turn and 11x faster inference.