n8n vs OpenAI API
Source-available workflow automation — fair-code, self-host or cloud
vs. Frontier models: GPT-5, o-series reasoning, image, audio, embeddings
Pricing tiers
n8n
Community (self-host)
Source-available (fair-code). Free forever. Full feature set self-hosted.
$0 base (usage-based)
Cloud Starter
€20/mo annual (~$22). 2,500 workflow executions. 5 concurrent. 1 shared project. Unlimited users.
$22/mo
Cloud Pro
€50/mo annual (~$55). Custom execution volume. 20 concurrent. 3 shared projects. 7-day insights.
$55/mo
Cloud Business
€667/mo annual (~$735). 40,000 executions. 30 concurrent. 6 projects. Self-host option. SSO, SAML, LDAP. Git version control.
$735/mo
Enterprise
Custom. 200+ concurrent. Unlimited projects. SLA. 365-day retention.
Custom
OpenAI API
Free Tier (Trial)
$5 free credit for new accounts. Rate-limited.
Free
Pay-as-you-go
No monthly min. Per-token pricing by model.
$0 base (usage-based)
Usage Tiers (1-5)
Automatic tier promotion based on cumulative spend. Higher tiers = higher rate limits + new model access.
$0 base (usage-based)
Enterprise
Custom. Priority access, SLA, dedicated capacity.
Custom
Free-tier quotas head-to-head
Comparing starter on n8n vs free-tier on OpenAI API.
| Metric | n8n | OpenAI API |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
n8n · 19 features
- 500+ Integration Nodes — Apps, SaaS, DBs, cloud services, AI models.
- AI / LangChain Nodes — AI Agent, Chain, Memory, Vector Store nodes out of box.
- Audit Logs — Enterprise compliance logging.
- Code Nodes (JS + Python) — Drop-in custom code nodes with full data access.
- Credentials Vault — Encrypted credentials per service.
- Environments — dev/staging/prod environments.
- Error Workflows — Global + per-workflow error handlers.
- Execution History — Full run log with inputs/outputs per node.
- Expression Editor — JavaScript expressions for data mapping.
- External Secrets — HashiCorp Vault + AWS Secrets + Azure Key Vault integrations.
- Git Version Control — Version workflows in Git (Business+).
- HTTP Request Node — Full-featured HTTP client node (any REST API).
- Queue Mode — Redis-backed execution queue for scaling.
- Schedule Triggers — Cron-based triggers down to the minute.
- SSO + SAML + LDAP — Business+ authentication.
- Sub-Workflows — Reusable child workflows.
- Variables — Global variables + per-workflow variables.
- Visual Editor — Drag-and-drop flow builder. Node-based canvas.
- Webhooks — Webhook triggers + responses.
OpenAI API · 12 features
- Assistants API — Stateful assistants with tools, threads, file search.
- Batch API — 50% discount for async processing within 24h.
- Chat Completions API — Classic /v1/chat/completions endpoint.
- Files API — Upload docs for retrieval, fine-tuning, batch.
- Fine-Tuning — Supervised + DPO fine-tuning for GPT-4o, GPT-4.1, GPT-4o-mini.
- Function Calling — JSON-schema tool calling; parallel calls supported.
- Moderation — Safety classifier API (free).
- Prompt Caching — Auto-cache repeated prefixes; 50% cheaper cached hits.
- Realtime API — WebSocket streaming voice + text with low latency.
- Responses API — Stateful conversational API.
- Structured Outputs — Enforced JSON schema compliance.
- Vision — Image input for GPT models.
Developer interfaces
| Kind | n8n | OpenAI API |
|---|---|---|
| CLI | n8n CLI | — |
| SDK | — | openai-dotnet, openai-go, openai-node, openai-python |
| REST | n8n REST API | OpenAI REST API |
| MCP | n8n MCP | OpenAI MCP |
| OTHER | n8n Editor UI, Webhook Triggers | Realtime API (WebSocket) |
Staxly is an independent catalog of developer platforms. Outbound links to n8n and OpenAI API are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.
Want this comparison in your AI agent's context? Install the free Staxly MCP server.