Arthur vs Manifest
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Manifest has the lower starting price: about $19 a month, against $60 for Arthur.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Agent discovery
- Step-level tracing
- Runtime guardrails
- Audit logs and lineage
- Custom metrics and alerts
- Multi-provider routing
- Automatic failure recovery
- Local model support
- Usage and cost tracking
- Self-hosted or cloud
| Feature | Arthur | Manifest |
|---|---|---|
| Best for | Discovery, monitoring and governance for enterprise AI agents | Open-source LLM gateway that routes agents to any provider |
| Category | Models & APIs | Models & APIs |
| Pricing model | Freemium | Freemium |
| Starting price | $60/mo | $19/mo |
| Free plan | Yes | Yes |
| Made by | Arthur AI | Manifest |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Manifest has the lower starting price: about $19 a month, against $60 for Arthur.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- Up to 4 monitored use cases
- Unlimited seats
- Cloud data connectors
Premium
$60/mo
- Up to 100 use cases
- Custom metrics and dashboards
- Custom alerts and webhooks
Enterprise
Contact sales
- Dedicated infrastructure
- Governance and support
3 plans
Self-hosted
Free
- Unlimited routed requests
- All providers and local models
- Community support on Discord
Manifest Cloud
$19/mo
- Hosted gateway
- Same-day updates
- Servers and uptime managed
Enterprise
Contact sales
- On-premise or VPC
- SSO and audit logs
- Support contract
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Arthur
- Finds shadow agents across environments
- Free tier with unlimited seats
- Covers security and evaluation together
- Free tier monitors only 4 use cases
- Enterprise features need a sales call
- Broad platform takes time to set up
Manifest
- Free self-hosting with no request limits
- Works with subscriptions and local models
- Code is open for review
- No free tier on the hosted cloud
- Community-only support when self-hosted
Which one should you choose?
Choose Arthur if you want:
- Finds shadow agents across environments
- Free tier with unlimited seats
- Covers security and evaluation together
Watch out: free tier monitors only 4 use cases.
Choose Manifest if you want:
- Free self-hosting with no request limits
- Works with subscriptions and local models
- Code is open for review
Watch out: no free tier on the hosted cloud.
Arthur vs Manifest FAQ
What is the difference between Arthur and Manifest?
Arthur: Discovery, monitoring and governance for enterprise AI agents. Manifest: Open-source LLM gateway that routes agents to any provider. Both are models & apis tools.
Is Arthur or Manifest cheaper?
Manifest has the lower starting price: about $19 a month, against $60 for Arthur.
Do Arthur and Manifest have free plans?
Arthur: Yes. Manifest: Yes.
Who makes Arthur?
Arthur is made by Arthur AI, based in United States.
Who makes Manifest?
Manifest is made by Manifest.
Which should I choose, Arthur or Manifest?
Choose Arthur if you value finds shadow agents across environments and free tier with unlimited seats. Choose Manifest if you value free self-hosting with no request limits and works with subscriptions and local models.