Appen pricing

Appen provides human-expert training data, annotation and model evaluation services for AI labs, plus an annotation platform and an enterprise data licensing service.

Data labeling softwareSales-led

Visit AppenPrices checked Oct 29, 2026

How much does Appen cost?

PriceNot publishedAppen asks you to contact sales.

Free plan: Not stated
Enterprise: Contact sales

Read from www.appen.com on Oct 29, 2026. Price changed? Tell usSee the line each price came from

How you buy and get started

Sales-ledButtons on their site: Talk to an expert, Get in touch, Submit your request

Sign up: Not stated
Setup: Not stated
When sales steps in: Not stated

What Appen does

Appen sells custom AI training data services such as RLHF, reasoning, agentic, multimodal and speech, physical AI, model integrity and coding datasets, delivered with a global contributor crowd. It also offers an annotation platform (ADAP) and brokers licensing of enterprise operational data to AI labs.

Good for: AI labs and enterprises that need custom human-annotated training data, RLHF and model evaluation, and companies that want to license their operational data to AI labs.
Main product: AI training data services and annotation platform (AI Data Platform, ADAP)
Also includes: Frontier alignment (CoT reasoning, SME RLHF, SFT, red teaming), Agentic AI trajectories and RL environments, Multimodal and speech data (ASR, TTS, VLM, video action labelling), Physical AI (LiDAR annotation, sensor fusion, robotics trajectories), Model integrity (hallucination benchmarking, bias and compliance audits), Research services (LLM-as-a-judge, synthetic data)
Public API: Not stated
MCP server: Not stated

Image and video annotationDeep learning for computer vision — image annotation and bounding box labeling at industrial scale.
Text and NLP labelingHuman evaluation for search quality and multilingual NLP at scale.
Audio and speech labelingMultilingual ASR and conversational speech corpora, expressive TTS annotation, VLM training data, video action
LLM and RLHF evaluationCoT reasoning traces, SME RLHF, SFT demonstrations and adversarial red teaming for the world’s most capable mo
Model-assisted auto-labelingNot stated
Review and QA workflowsNot stated
Managed labeling workforceVetted contributors worldwide
Self-hosted or open sourceNot stated

The same 8 checks appear on every tool in Data labeling software. Each tick quotes the vendor's own site.

Security and your data

Question	Their answer	Where it says so
Trains AI on your data?	Not stated
HIPAA (signs a BAA)	available	"We are proud to offer a HIPAA compliant solution."security
SOC 2	SOC 2 Type II attested	"SOC 2 Type II Attestation"security
GDPR	GDPR compliant	"General data protection regulation (GDPR)"security
CCPA	Not stated
PCI	Not stated
ISO 27001	ISO 27001:2013 certified	"Appen is ISO 27001:2013 certified with TUV Rheinland North America, Inc."security
Single sign-on	Not stated
Trust center	Not stated