What is Appen?
Expert-validated human data for training models.
Who is Appen best for?
Appen is best for AI labs and enterprise model teams that need expert-checked human data for training and evaluation.
Frontier model alignment
It supplies reasoning traces, subject-expert RLHF, fine-tuning demonstrations and red-teaming data for large language models.
Agent builders
Its agentic data covers golden trajectories, RL environment design and deep evaluation of the ways autonomous agents fail.
Speech, vision and robotics teams
It annotates multilingual speech, video, LiDAR point clouds and robot demonstrations for models that hear, see and act.
Teams that want ready-made datasets
Its data catalog lists RL tasks with verifiers, code repositories, book corpora and audio sets that can be licensed instead of collected from scratch.
How much does Appen cost?
Appen does not publish prices: its training data services, off-the-shelf datasets and ADAP annotation platform are sold by quote through its sales team, and the maker states no free plan or trial.
Appen shows no price for its data services, datasets or ADAP platform. Datasets in its catalog carry an Add to quote button, and every other service runs through a contact form for its sales team, which says it replies within one business day. Plans and current prices are on appen.com.
How do readers rate Appen?
No one has rated Appen yet. Be the first.
Sign in to rate. One rating per account.
What are the best Appen alternatives?
Three tools on Recaply do Appen's job.
Questions about Appen
What is Appen?
Expert-validated human data for training models.
Who is Appen for?
Appen is best for AI labs and enterprise model teams that need expert-checked human data for training and evaluation.
Is Appen free?
No. Appen is a paid tool.
What are the best Appen alternatives?
The closest alternatives on Recaply are Defined.ai, micro1 and Sama.
Where can I try Appen?
On its official website, appen.com.
Can I buy Appen datasets off the shelf?
Yes, but not at a listed price. Appen's data catalog lists ready-made datasets such as RL tasks with verifiers, code repositories, book corpora and audio sets; you add the ones you want to a quote and its sales team follows up with the licence terms.
Pareto AI
People For AI
EyePop.ai
BasicAI
SKY ENGINE AI
AIxBlock