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Appen

Software & Technology

1,000-5,000 employees
Founded 1996

Appen is an AI training-data company that provides human-validated data for AI development, including frontier-model alignment (RLHF, SFT, red teaming), agentic AI, speech and audio, multimodal, physical AI data, and model evaluation. It is listed on the Australian Securities Exchange (ASX: APX) and operates CrowdGen (crowdgen.com), its contributor platform for independent contractors doing AI data work.

  • Frontier Alignment (RLHF, SFT, red teaming)
  • Agentic AI data
  • Speech & Audio training data
  • Multimodal AI data
  • Physical AI data
  • Model Integrity / evaluation
  • AI Data Platform (ADAP)

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