We train the world's leading AI models

RL environments, evals, annotation, or full model development. We plug in wherever you are in the build.

Tell us about your data needs
AmFam
AWS
Charlotte Hornets
Cohere
ElevenLabs
Grubhub
Hint
Microsoft
Swissgear

Why Invisible

Our mission is to make AI work. It starts with building the infrastructure model builders and enterprises run on.

Experience

We’ve trained >80% of world’s leading AI foundation models

Experts

A network of 22M+ experts across 800 domains and 95+ languages

Data

Access to innovative off-the-shelf data and custom datasets through industry-leading data partnerships

Tooling

Reusable tooling & research methods to accelerate model training and evaluations

offerings

Annotation, training, and evaluation for frontier models

Reinforcement learning environments

Environments where models learn by doing — trial, feedback, iteration. Rewards are graded by expert-designed rubrics and verifiers

Agentic & tool-use training

Datasets and environments that teach agents to plan, reason, and follow through across multi-step tasks including when to reach for a tool, how to use it, and how to recover when it fails

Custom evaluations

Rigorous custom evaluations to identify and remedy model weaknesses in safety, quality, and accuracy across domains

Off-the-shelf training data

Validated, production-ready datasets for the frontier-building capabilities and domains

Multimodal training

Datasets across text, image, audio, and video so models can reason across modalities

Multilingual training

Datasets across 95+ languages with dialect and cultural nuances to align with local norms across global regions

Supervised fine-tuning (SFT)

Expert-written demonstrations and prompt-response pairs that build strong model fundamentals

Reinforcement learning from human feedback (RLHF)

Thousands of expert comparisons that teach models what good judgment sounds like in tone, accuracy, and domain standards

“Invisible has been a trusted partner and their dedication to quality and results have been key to our success.”
Jesse Willman
Staff Engineering Program Manager, Cohere

experts

Human experts
PhDs, doctors, lawyers. Training the next generation of models requires the human experts who've spent decades getting these calls right in the real world.
22M+
Experts
1.5M+
STEM experts
800+
Unique domains
95+
Languages

Coding

Developers, architects, and AI engineers who've shipped production code across languages

Engineering & technology

Mechanical, electrical, civil, and aerospace engineers

Language & linguistics

Native speakers and trained linguistics, covering 110+ languages and dialects

Sciences

PhDs and researchers in chemistry, physics, and biology

Medical & healthcare

Licensed physicians, nurses, and clinical specialists with years of clinical experience

Finance & accounting

CFAs, accountants, actuaries, and investment bankers

Business & legal

Experienced lawyers, consultants, and managers with decades of experience

Creative & multimedia

Writers, designers, and musicians with published or produced work

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