High-quality human data for AI training, evaluation, and research
n8n records 4,522,449 monthly visits with -7.4% month-over-month growth and Freemium pricing. OpinioAI records 0 monthly visits with 0% growth and Freemium, Paid pricing.
Customer insight and creative testing powered by AI personas
Open-source workflow automation built for AI agents and technical teams
Build automations with a visual node editor, then insert JavaScript or Python code nodes when you need custom logic.
Connect to 500+ native services, any REST API via HTTP nodes, and any agent or coding assistant through MCP.
Run agents alongside regular steps, inspect every decision, and add structured inputs, guardrails and human approval steps.
Watch workflows execute live, open past runs, replay a run with mocked data and re-run just the step that failed.

Customer insight and creative testing powered by AI personas
Create AI personas that represent your target customers, then query them to explore perceptions, preferences and reactions.
Run synthetic research and surveys to gather fast feedback on concepts, copy and creative before committing budget.
Test advertising, messaging and creative ideas against AI personas to see what resonates before launch.
Analyse research responses and turn them into structured insights for segmentation and positioning decisions.
High-quality human data for AI training, evaluation, and research

Unmatched ecosystem of app connectors and reliability, but significantly more expensive and lacks n8n's self-hosting freedom.
Unmatched ecosystem of app connectors and reliability, but significantly more expensive and lacks n8n's self-hosting freedom.

Targeted research audiences with AI-verified data quality
Targeted research audiences with AI-verified data quality
No-code builder for custom AI agents and workflows
No-code builder for custom AI agents and workflows

Free / Open-sourceOutstanding open-source visual canvas for RAG pipelines and LLM agents, but less suited for general API integrations.
Free / Open-sourceOutstanding open-source visual canvas for RAG pipelines and LLM agents, but less suited for general API integrations.

SpecialistMultiplayer AI where people and agents work side by side
SpecialistMultiplayer AI where people and agents work side by side
Turn one prompt into live business apps, AI agents and automated workflows
Qualitative research depth at survey scale, moderated by AI
Qualitative research depth at survey scale, moderated by AI
Powerful visual builder specifically tailored for complex AI agent workflows, but less mature for traditional enterprise automation.
Powerful visual builder specifically tailored for complex AI agent workflows, but less mature for traditional enterprise automation.
AI-driven market intelligence and trade data for 10,000+ products
AI-driven market intelligence and trade data for 10,000+ products

SpecialistDeveloper-first integration platform with granular code control, but lacks n8n's visual node-based workflow builder.

Turn customer voices into confident decisions