Dify is a self-hosted platform for building LLM apps with a visual UI. Neureus is an API-first AI backend — no Docker, native multi-tenancy, BYOK per tenant, and batch inference. Choose based on whether you want a visual builder or programmatic control.
If you're building a SaaS product where each customer gets their own isolated AI workspace, Neureus's multi-tenant architecture saves significant engineering work.
Dify is designed as a single-tenant platform. To serve multiple customers, you deploy one Dify instance per customer (expensive) or build your own tenant isolation layer on top of a shared instance (complex). BYOK is possible but requires custom configuration per user.
Every Neureus API key is a tenant. Tenant isolation is enforced at the database level — every table has tenant_id, every query filters by it. BYOK keys are AES-GCM encrypted per tenant. Multi-tenancy is the default, not a plugin.
With Neureus, each tenant's documents are automatically isolated. No extra tenant-id routing logic needed in your application.
import { NeureuAI } from '@neureus/sdk';
// Each customer gets their own API key — full isolation out of the box
const tenantClient = new NeureuAI({ apiKey: customerApiKey });
// Ingest documents — automatically scoped to this tenant's index
await tenantClient.rag.ingest({ url: customerDocsUrl });
// Query — only searches this tenant's documents
const { text } = await tenantClient.ai.chat({
model: 'claude-haiku-4-5',
messages: [{ role: 'user', content: userQuestion }],
rag: { query: userQuestion, topK: 5 },
});
// To use customer's own OpenAI key (BYOK):
await tenantClient.ai.setProviderKey('openai', customerOpenAIKey);
// Now all calls from this tenant use their key — encrypted, isolated| Feature | Dify | Neureus |
|---|---|---|
| Multi-provider LLM routing | ✓ | ✓ |
| RAG pipeline (ingest + query) | ✓ | ✓ |
| AI agents | ✓ | ✓ |
| Visual workflow builder | ✓ | — |
| Chatbot UI builder | ✓ | — |
| API-first (no UI required) | Partial | ✓ |
| Multi-tenant by default | — | ✓ |
| Per-tenant BYOK key isolation | — | ✓ |
| Batch inference (40% off) | — | ✓ |
| MCP server | — | ✓ |
| Prompt preprocessor | — | ✓ |
| Composite AI patterns | — | ✓ |
| TypeScript SDK | — | ✓ |
| Edge deployment (300+ PoPs) | — | ✓ |
| Human-in-the-loop approvals (HITL) | Partial | ✓ |
| No Docker required | — | ✓ |
| Free tier | — | ✓ |
Dify's visual chatbot builder is excellent. You can build a customer-facing chat interface without writing frontend code — configure the model, RAG sources, and conversation starters in the Dify UI and get an embeddable widget. Neureus's embeddable widget (`/widget.js`) exists but is simpler.
Dify has a thriving marketplace of plugins and a large community for open-source collaboration. If you want to extend the platform with community-built connectors, Dify's ecosystem is more mature than Neureus's (which is API-first rather than plugin-first).
For non-technical teams, Dify's visual interface lowers the barrier to building LLM applications significantly. If your team wants to build AI features without API calls or TypeScript code, Dify's visual canvas is genuinely the better choice.
For SaaS products serving multiple customers with AI: Neureus handles isolation, key management, and billing metering. 500 Neurons/month free.