kitio.aiAgentOps vs Langtail
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. AgentOps has the lower starting price: about $40 a month, against $99 for Langtail.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Agent session tracing
- Time-travel replay debugging
- LLM cost tracking
- Prompt injection logging
- Fine-tuning on saved completions
- 400+ framework integrations
- Prompt versioning
- Prompt testing
- Logs
- Deployment
- Radars and alerts
- Shareable apps
| Feature | AgentOps | Langtail |
|---|---|---|
| Best for | Observability, replay debugging and cost tracking for AI agents | Prompt management and testing for product teams |
| Category | Models & APIs | Models & APIs |
| Pricing model | Freemium | Freemium |
| Starting price | $40/mo | $99/mo |
| Free plan | Yes | Yes |
| Made by | AgentOps | Langtail |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Pricing compared
AgentOps has the lower starting price: about $40 a month, against $99 for Langtail.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Basic
Free
- Up to 5,000 events
- Cost tracking for 400+ LLMs
- Replay analytics
Pro
$40/mo
- Starting price, pay as you go
- Unlimited events and retention
- Session export
- Role-based permissions
Enterprise
Custom
- SLA and Slack Connect
- Custom SSO
- Self-hosting and on-premise
3 plans
Free
Free
- Unlimited users
- 2 prompts or assistants
- 1,000 logs per month
- 30 days data retention
Pro
$99/mo
- 1 user
- 20 prompts or assistants
- Unlimited logs
- 90 days data retention
Team
$499/mo
- 10 users
- Unlimited prompts or assistants
- Radars and alerts
- Dedicated support
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
AgentOps
- Quick setup with one SDK
- Broad framework support
- Free tier for small projects
- Free plan capped at 5,000 events
- Pro pricing is usage-based
- Self-hosting only on Enterprise
Langtail
- Free plan with unlimited users
- Combines testing and logging
- Version control for prompts
- Free plan allows only 2 prompts
- Team plan costs $499 a month
- Prices exclude VAT
Which one should you choose?
Choose AgentOps if you want:
- Quick setup with one SDK
- Broad framework support
- Free tier for small projects
Watch out: free plan capped at 5,000 events.
Choose Langtail if you want:
- Free plan with unlimited users
- Combines testing and logging
- Version control for prompts
Watch out: free plan allows only 2 prompts.
AgentOps vs Langtail FAQ
What is the difference between AgentOps and Langtail?
AgentOps: Observability, replay debugging and cost tracking for AI agents. Langtail: Prompt management and testing for product teams. Both are models & apis tools.
Is AgentOps or Langtail cheaper?
AgentOps has the lower starting price: about $40 a month, against $99 for Langtail.
Do AgentOps and Langtail have free plans?
AgentOps: Yes. Langtail: Yes.
Who makes AgentOps?
AgentOps is made by AgentOps.
Who makes Langtail?
Langtail is made by Langtail.
Which should I choose, AgentOps or Langtail?
Choose AgentOps if you value quick setup with one sdk and broad framework support. Choose Langtail if you value free plan with unlimited users and combines testing and logging.