MatrAIx is a population-scale, persona-driven evaluation infrastructure that instantiates heterogeneous simulated users as LLM agents to test AI systems and interactive products across Survey, AI Chatbot, Web, and App environments.

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License

Apache-2.0

Last updated

2026-08-01

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FR-AI / ANALYSIS

Why it is worth attention

It combines a 1,290-dimensional persona schema with a quality-filtered, publicly released one-million-persona coreset, and offers reproducible task execution, shared telemetry, and a visual Playground.

Who it is for

  • AI evaluation and safety researchers
  • Product and UX teams validating interactive experiences
  • LLM agent developers needing persona-conditioned test scenarios
  • Academic communities studying simulated-user methodologies

Use cases

  • Running reproducible persona-driven evaluations across survey, chatbot, web, and native app tasks
  • Stress-testing AI products with heterogeneous simulated users before real-world release
  • Using the Persona 1M dataset for research on synthetic persona generation and grounding
  • Developing and registering custom evaluation tasks with verifiers for Playground/CLI runs

Strengths

  • Detailed 1,290-dimensional persona schema covering background, psychology, capability, and behavior
  • One-million-persona public coreset with dependency-aware synthetic generation and evidence-aware human grounding
  • Four built-in task environments plus adapters and task-owned verification
  • Apache-2.0 licensed with Docker/uv-based reproducible Harbor job recipes and visual Playground

Considerations

  • Explicitly positioned as a simulation tool, not a replacement for evidence from real people
  • Requires a multi-tool setup (Docker, uv, Python 3.12, Node.js) and model API keys for persona-agent examples
  • Large generated datasets are not in git and must be downloaded separately; custom task development involves multiple components

README quick start

Installation

Description

Simulate Before Reality.

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