Confident AI vs LangSmith: Which is Better in 2026?
Choosing between Confident AI and LangSmith comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Confident AI is our overall pick for AI observability workflows. Pick LangSmith if you need AI agents.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Confident AI
Build reliable AI systems with best-in-class LLM evaluation and observability.
Best for you if:
- • You need AI observability features specifically
- • Provides an end-to-end platform for LLM evaluation and observability.
- • Helps benchmark, monitor, and debug LLM systems with metrics powered by DeepEval.
LangSmith
Debug, monitor, and optimize your LLM applications and AI agents with comprehensive observability.
Best for you if:
- • You need AI agents features specifically
- • Debug LLM applications with detailed agent tracing.
- • Monitor key business metrics with live dashboards and alerts.
| At a Glance |  Confident AI |  LangSmith |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | AI Observability | AI Agents |
Rating | - | - |
Free plan | Yes | Yes |
Choose Confident AI or LangSmith?
Choose Confident AI if
Build reliable AI systems with best-in-class LLM evaluation and observability.
- Leverages the popular open-source DeepEval framework for robust evaluations.
- Comprehensive solution covering both evaluation and observability for LLMs.
- Designed to prevent regressions and ensure continuous improvement of AI systems.
- Your work is AI observability-shaped, not AI agents-shaped
Choose LangSmith if
Debug, monitor, and optimize your LLM applications and AI agents with comprehensive observability.
- Provides deep visibility into non-deterministic LLM behavior
- Helps improve application performance and response quality
- Offers comprehensive monitoring and alerting capabilities
- Your work is AI agents-shaped, not AI observability-shaped
| Feature | Confident AI | LangSmith |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| User Rating | No ratings yet | No ratings yet |
| Categories | AI ObservabilityTesting & QA | AI AgentsDeveloper Tools |
In-Depth Analysis
Confident AI
Build reliable AI systems with best-in-class LLM evaluation and observability.
Strengths
- +Leverages the popular open-source DeepEval framework for robust evaluations.
- +Comprehensive solution covering both evaluation and observability for LLMs.
- +Designed to prevent regressions and ensure continuous improvement of AI systems.
- +Offers enterprise-level security, compliance, and deployment options.
- +Provides detailed tracing and debugging capabilities for LLM pipelines.
Weaknesses
- -Specific pricing details are not readily available on the website.
- -Requires integration with existing LLM frameworks or custom setups.
Key features
LangSmith
Debug, monitor, and optimize your LLM applications and AI agents with comprehensive observability.
Strengths
- +Provides deep visibility into non-deterministic LLM behavior
- +Helps improve application performance and response quality
- +Offers comprehensive monitoring and alerting capabilities
- +Identifies systemic issues and user needs automatically
- +Flexible integration with various frameworks and OTel
Weaknesses
- -Specific pricing details require visiting a separate page
- -Self-hosting is only available on the enterprise plan
- -Requires some setup (e.g., environment variables) to get started
Key features
Pricing: Confident AI vs LangSmith
| Plan | Confident AI | LangSmith |
|---|---|---|
| Tier 1 | $0 Free | N/A |
| Tier 2 | From $19.99/user/month Starter | N/A |
| Tier 3 | From $79.99/user/month Premium | N/A |
| Tier 4 | Custom pricing Team | N/A |
| Tier 5 | Custom pricing Enterprise | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on Confident AI pricing and LangSmith pricing.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Confident AI
Want the highest-rated option?
Neither has ratings yet.
Too early to call on ratings — compare on features and pricing.
Value user reviews?
Neither has ratings yet.
Too early to call — neither has ratings yet.
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Confident AI is a AI observability tool. LangSmith is in AI agents. Pick the category that matches your needs.
How important are ratings?
Neither has ratings yet.
Key Takeaways
Confident AI
- Free tier available
- Our pick for this comparison
LangSmith
- Better fit for AI agents
The Bottom Line
Confident AI is our pick.
Frequently Asked Questions
Is Confident AI or LangSmith better?
Confident AI is rated in our evaluation. Both are freemium.
What are Confident AI and LangSmith used for?
Confident AI: Build reliable AI systems with best-in-class LLM evaluation and observability.. LangSmith: Debug, monitor, and optimize your LLM applications and AI agents with comprehensive observability..
What does Confident AI cost vs LangSmith?
Confident AI is freemium (free tier + paid plans). LangSmith is freemium (free tier + paid plans). Visit their websites for detailed pricing.