kitio.aiLangSmith 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 $39 for LangSmith.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Agent tracing
- Datasets and evaluators
- Prompt hub
- Agent deployment
- Online monitoring
- Multi-provider routing
- Automatic failure recovery
- Local model support
- Usage and cost tracking
- Self-hosted or cloud
| Feature | LangSmith | Manifest |
|---|---|---|
| Best for | Tracing, evaluation and deployment platform for LLM agents | Open-source LLM gateway that routes agents to any provider |
| Category | Models & APIs | Models & APIs |
| Pricing model | Freemium | Freemium |
| Starting price | $39/mo | $19/mo |
| Free plan | Yes | Yes |
| Made by | LangChain | Manifest |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Pricing compared
Manifest has the lower starting price: about $19 a month, against $39 for LangSmith.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Developer
Free
- 1 seat
- 5k base traces / month, then pay as you go
- Community support
Plus
$39/mo
- Per seat
- 10k base traces / month, then pay as you go
- Access to Deployment and Engine
- Unlimited seats
Enterprise
Custom
- Self-hosted and hybrid deployment
- Custom SSO, ABAC and RBAC
- Support SLA
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 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
LangSmith
- Detailed agent traces
- Strong LangGraph integration
- Works with any framework
- Per-seat pricing adds up
- Trace retention costs extra
- Self-hosting is enterprise-only
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 LangSmith if you want:
- Detailed agent traces
- Strong LangGraph integration
- Works with any framework
Watch out: per-seat pricing adds up.
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.
LangSmith vs Manifest FAQ
What is the difference between LangSmith and Manifest?
LangSmith: Tracing, evaluation and deployment platform for LLM agents. Manifest: Open-source LLM gateway that routes agents to any provider. Both are models & apis tools.
Is LangSmith or Manifest cheaper?
Manifest has the lower starting price: about $19 a month, against $39 for LangSmith.
Do LangSmith and Manifest have free plans?
LangSmith: Yes. Manifest: Yes.
Who makes LangSmith?
LangSmith is made by LangChain, based in United States.
Who makes Manifest?
Manifest is made by Manifest.
Which should I choose, LangSmith or Manifest?
Choose LangSmith if you value detailed agent traces and strong langgraph integration. Choose Manifest if you value free self-hosting with no request limits and works with subscriptions and local models.