Refuel.AI

Refuel.AI

Generates and annotates datasets with LLMs

Overview

Refuel.AI is a platform that uses large language models to generate, annotate, and enrich datasets for AI model training. By accepting user instructions on the needed data, it automatically creates and labels datasets, streamlining data preparation. It differs from traditional annotation services by delivering end-to-end, instruction-driven data generation and labeling at scale. Its goal is to speed up AI development and deployment by providing ready-to-use, high-quality labeled data tailored to each project.

About Refuel.AI

Simplify's Rating
Why Refuel.AI is rated
C+
Rated C on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Data & Analytics

Enterprise Software

AI & Machine Learning

Company Size

11-50

Company Stage

Seed

Total Funding

$10.5M

Headquarters

San Francisco, California

Founded

2021

Simplify Jobs

Simplify's Take

What believers are saying

  • Together AI's $533M funding enables rapid scaling of Refuel-LLM models across enterprise customers.
  • Processing billions of tokens weekly for AI-native startups and major financial institutions demonstrates traction.
  • Automated prompt engineering and hyperparameter optimization reduce manual ML engineering overhead significantly.

What critics are saying

  • Acquisition eliminates Refuel's independent brand; Together AI redirects customers to its platform.
  • AutoLabel open-source commoditizes core labeling technology, enabling free competitor alternatives.
  • Declining AI data tooling VC funding limits Together's investment in Refuel-LLM model advancement.

What makes Refuel.AI unique

  • Refuel-LLM-2 achieves 50% fewer errors than state-of-the-art models on structured data tasks.
  • AutoLabel open-source library delivers 25-100x speedup for dataset creation versus manual labeling.
  • Integrated into Together AI's platform with serverless inference and LoRA fine-tuning capabilities.

Help us improve and share your feedback! Did you find this helpful?

Funding

Total Funding

$10.5M

Above

Industry Average

Funded Over

2 Rounds

Notable Investors:
Seed funding is usually the first official round after pre-seed, when a startup has a prototype or concept. It’s typically used to develop the product, test the market, and start building the team. Investors here are often angel investors or early-stage venture capitalists.
Seed Funding Comparison
Above Average

Industry standards

$3.3M
$2M
Netflix
$2.3M
Instacart
$3M
Robinhood
$5.2M
Refuel.AI

Benefits

Competitive salary & meaningful equity

Health, vision, & dental insurance

Unlimited PTO

Home office setup

Learning & development

Team retreats

Growth & Insights and Company News

Headcount

6 month growth

-7%

1 year growth

-18%

2 year growth

-7%
Together AI
May 16th, 2025
Together AI acquires Refuel.ai to unlock data for developers and businesses building production-grade AI applications

If you speak with the largest enterprises today, they will tell you about the hundreds of AI applications they would like to deploy across their organization. However, they run into a consistent challenge – their data is an unstructured mess and they lack the tooling to easily clean and transform this data – and without the right data, AI applications cannot hope to meet production-level quality.

TechTarget
May 16th, 2025
Together AI Acquires Refuel.ai, $533M Raised

Together AI has acquired Refuel.ai, a startup specializing in transforming unstructured data into structured datasets for AI applications, for an undisclosed amount. Refuel, founded in 2021, has raised about $5.2 million. Together AI, founded in 2022, has raised approximately $533 million, with its latest round in February raising $305 million. The acquisition aims to enhance Together AI's data quality capabilities for generative AI models, with Refuel's LLM-2 now available on Together AI's platform.

Trend Hunter
Oct 17th, 2023
LLM Training Datasets

Refuel.ai Inc. has introduced its Refuel Cloud platform, designed to streamline the preparation of datasets for artificial intelligence (AI) training.

dlvr.it
Jun 21st, 2023
Refuel AI: $5.2 Million Raised To Automate Dataset Creation And Labeling For Every Business

Refuel AI - a platform to automate dataset creation and labeling for every business and every use case - announced recently that it exited from stealth with $5.2 million in seed funding led by General Catalyst and XYZ Ventures.

Financeinfo.my.id
Jun 21st, 2023
How to fundraise during a VC drought: One startup shares their 6-month process – Finance News

– Refuel.ai, a San Francisco-based dataset creation and labeling automation platform, raised $5.2 million in seed funding co-led by General Catalyst and XYZ Ventures.

Recently Posted Jobs

Sign up to get curated job recommendations

There are no jobs for Refuel.AI right now.

Find jobs on Simplify and start your career today

We update Refuel.AI's jobs every few hours, so check again soon! Browse all jobs →