Close the Last Mile Gap in AI
Accelerate your AI system’s accuracy and reliability with domain-expert human data
Built on decentralized infrastructure. Powered by the world’s largest AI workforce community
85% of AI projects fail before reaching production
Most AI initiatives struggle to cross that “last mile,” with up to 85% falling short on accuracy, reliability, or real-world performance. Traditional data sourcing is slow, expensive, and disconnected from your unique use case. What’s missing is an integrated platform that helps AI Builders refine their systems through verified, incentivized human feedback.
Human Data Workforce Platform built for AI Builders
Evaluate AI
against your Data
Evaluate AI models and systems against your data and context — rapidly test prototypes and get community-driven evaluations
Generate & Enrich
AI Training Data
Safely create synthetic or human domain-expert datasets for AI system testing and RLHF alignment.
Launch AI App
User Testing & Bug Bounties
Test your AI apps, agents, or embodied systems in the wild. Run AI bug bounties — detect failure cases faster than ever.
Your End-to-End AI Optimization Layer
Manage your entire
human-in-the-loop workflow from one place
From data collection to evaluation and feedback. No more juggling spreadsheets, survey tools, and payment systems. Joinable gives you a unified dashboard to deploy, track, and optimize your AI improvement cycles.
Access a dynamic network of
certified testers, domain experts
Ready to evaluate and improve your AI systems and AI models. You can tap your internal teams or expand to Joinable’s open contributor network — all verified, ranked, and reputation-scored for quality.
Every contribution is recorded on-chain
ensuring full transparency & traceability
Know exactly who contributed what, when, and how. This immutable audit trail builds confidence in your data and results.
Over 1 million verified community contributions
Joinable already powers over 1,400 AI Builders, 400 AI Systems, and more than 1 million verified community contributions. Our infrastructure and tokenized incentive model are built to scale with your AI goals.
AI Use Cases Enhanced by Verified Human Input
AI-powered
internal knowledge bases
(RAG apps)
Intelligent assistants
for HR, finance, legal,
and support
Private LLMs fine-tuned
on business documents
and logs
AI-Powered
Applications
for Your Customers
Domain-specific agents
that understand
your business
Embedded AI
in robotic or autonomous
systems
Why It Matters Now
85% of business data remains unstructured and underutilized,
yet decisions are expected in real time.
Joinable gives businesses the speed, intelligence, and security to build AI systems that reflect their data, their context, and their goals—fast.
Let's get started
At Joinable, our mission is to empower builders of all backgrounds to create intelligent, data-driven applications—quickly, securely, and without complexity.
Join our community of AI Builders on Discord to share ideas, get support, and collaborate with others building the future of private AI.