Together AI

Together AI is an Infrastructure & APIs company founded in 2022 and based in San Francisco, United States. It has raised $533.5M in total funding, most recently a Series B in 2025 at a $3.3B valuation.

Delivers decentralized cloud for running open-source AI models with API access to FLUX and other models. Offers FLUX and other frontier models via API; competes on developer experience and pricing.

Focused on open-source model infrastructure; alternative to Replicate with emphasis on decentralized compute.

together.ai Infrastructure & APIs

United Statesprivate

At a glance

Total raised

$533.5M

last round series b

Headcount

201-500

approximate · public range

Headquarters

San Francisco

United States

Founded

2022

4 years active

Status

Private

Infrastructure & APIs

Latest valuation

Funding history

Total raised

$533.5M

Rounds tracked

Latest stage

Series B

Latest valuation

$3.3B

Date	Stage	Amount	Valuation	Lead investors
Feb 20, 2025	Series B	$305M	$3.3B	General Catalyst, Prosperity7 Ventures
Mar 13, 2024	Series A	$106M

Together AI

At a glance

Funding history

In the news

Neocloud Together AI raises $800M, leaps to $8.3B valuation

Announcing our $800M Series C to accelerate the shift to open-source AI

Together AI at ICML 2026: frontier research across the full stack

ParallelKernelBench: Frontier LLMs can't write fast multi-GPU kernels (yet)

Serving MiniMax-M3 for efficient inference: Unlocking 1M-Token Context and Multimodality Without Regrets

How Together AI built the world’s fastest speech-to-text stack

Watch

Leadership

Products

Together API

GPU Clusters

Fine-Tuning Platform

Code Sandbox

Most recent patents

Open roles

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