LangSmith Alternative with Agent Testing and Collaboration

Join 1000's of AI developers using LangWatch to ship complex AI reliably

How LangWatch compares to LangSmith

Framework-agnostic integration

Universal compatibility with OpenAI, Anthropic, CrewAI, AutoGen, and custom agent frameworks through standardized API integration without ecosystem dependencies.

Agent simulations testing

Agent simulations test complex multi-turn workflows, tool usage patterns, and multi-modal flows that go beyond simple input/output pair evaluations.

Open-source platform

Source code transparency with unlimited self-hosting options, eliminating vendor lock-in and enabling custom modifications for enterprise requirements.

Flexible collaboration architecture

Dual interface supporting domain experts through platform UI and developers through programmatic APIs for complex workflow automation.

Automated prompt optimization

DSPy integration automatically optimizes prompts using machine learning techniques, generating improved versions through systematic refinement.

LangChain ecosystem optimization

Deep integration with LangChain ecosystem with optimized workflows for LangGraph and LangChain applications, plus OpenTelemetry support for other frameworks.

Input/output evaluation

Evaluation framework based on input/output pairs and trace analysis, with limited capabilities for testing complex agent interactions and multi-step workflows.

Proprietary cloud platform

Cloud-based proprietary platform with enterprise self-hosting available but limited transparency and customization capabilities.

Developer only workflows

Primarily designed for technical teams with prompt management and evaluation workflows requiring developer expertise for implementation.

Manual prompt management

Collaborative prompt editing with version control and A/B testing capabilities requiring manual optimization and developer-driven improvement cycles.

What makes LangWatch different?

Agent simulations

Agent simulation testing validates multi-turn workflows and edge cases before production, not just trace-based evaluation.

Framework agnostic

LangWatch's framework-agnostic architecture integrates with any LLM stack without requiring LangChain dependencies or ecosystem lock-in.

Framework agnostic

LangWatch's framework-agnostic architecture integrates with any LLM stack without requiring LangChain dependencies or ecosystem lock-in.

Platform and code-based collaboration

Platform and code-based collaboration enables domain experts to create scenarios through UI while developers build complex workflows.

Platform and code-based collaboration

Platform and code-based collaboration enables domain experts to create scenarios through UI while developers build complex workflows.

Discover LangWatch

Try LangWatch yourself or book some time with an expert to help you get set up.

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Talk to an Expert

Amit Huli
Head of AI - Roojoom
“When I saw LangWatch for the first time, it reminded me of how we used to evaluate models in classic machine learning. I knew this was exactly what we needed to maintain our high standards at enterprise scale"
Amit Huli
David Nicol
CTO - Productive Healthy Work Lives
Having evaluated numerous platforms, LangWatch was the only one that meaningfully resolved our quality gaps. The difference has been substantial
David Nicol
Lane Cunmmingham
VP engineering - GetGenetica - Flora AI
“LangWatch has brought us our monitoring and evaluations with an intuitive analytics dashboard. The Optimization Studio with DSPy brings the kind of progress we were hoping for as a partner."
Lane Cunmmingham
Kjeld O
AI Architect, Entropical AI agency
"I’ve seen a lot of LLMops tools and LangWatch is solving a problem that everyone building with AI will have when going to production. The best part is their product is so easy to use."
Kjeld O
Amit Huli
Head of AI - Roojoom
“When I saw LangWatch for the first time, it reminded me of how we used to evaluate models in classic machine learning. I knew this was exactly what we needed to maintain our high standards at enterprise scale"
Amit Huli
David Nicol
CTO - Productive Healthy Work Lives
Having evaluated numerous platforms, LangWatch was the only one that meaningfully resolved our quality gaps. The difference has been substantial
David Nicol
Lane Cunmmingham
VP engineering - GetGenetica - Flora AI
“LangWatch has brought us our monitoring and evaluations with an intuitive analytics dashboard. The Optimization Studio with DSPy brings the kind of progress we were hoping for as a partner."
Lane Cunmmingham
Kjeld O
AI Architect, Entropical AI agency
"I’ve seen a lot of LLMops tools and LangWatch is solving a problem that everyone building with AI will have when going to production. The best part is their product is so easy to use."
Kjeld O
Amit Huli
Head of AI - Roojoom
“When I saw LangWatch for the first time, it reminded me of how we used to evaluate models in classic machine learning. I knew this was exactly what we needed to maintain our high standards at enterprise scale"
Amit Huli
David Nicol
CTO - Productive Healthy Work Lives
Having evaluated numerous platforms, LangWatch was the only one that meaningfully resolved our quality gaps. The difference has been substantial
David Nicol
Lane Cunmmingham
VP engineering - GetGenetica - Flora AI
“LangWatch has brought us our monitoring and evaluations with an intuitive analytics dashboard. The Optimization Studio with DSPy brings the kind of progress we were hoping for as a partner."
Lane Cunmmingham
Kjeld O
AI Architect, Entropical AI agency
"I’ve seen a lot of LLMops tools and LangWatch is solving a problem that everyone building with AI will have when going to production. The best part is their product is so easy to use."
Kjeld O
Amit Huli
Head of AI - Roojoom
“When I saw LangWatch for the first time, it reminded me of how we used to evaluate models in classic machine learning. I knew this was exactly what we needed to maintain our high standards at enterprise scale"
Amit Huli
David Nicol
CTO - Productive Healthy Work Lives
Having evaluated numerous platforms, LangWatch was the only one that meaningfully resolved our quality gaps. The difference has been substantial
David Nicol
Lane Cunmmingham
VP engineering - GetGenetica - Flora AI
“LangWatch has brought us our monitoring and evaluations with an intuitive analytics dashboard. The Optimization Studio with DSPy brings the kind of progress we were hoping for as a partner."
Lane Cunmmingham
Kjeld O
AI Architect, Entropical AI agency
"I’ve seen a lot of LLMops tools and LangWatch is solving a problem that everyone building with AI will have when going to production. The best part is their product is so easy to use."
Kjeld O

Amit Huli
Head of AI - Roojoom
“When I saw LangWatch for the first time, it reminded me of how we used to evaluate models in classic machine learning. I knew this was exactly what we needed to maintain our high standards at enterprise scale"
Amit Huli
David Nicol
CTO - Productive Healthy Work Lives
Having evaluated numerous platforms, LangWatch was the only one that meaningfully resolved our quality gaps. The difference has been substantial
David Nicol
Lane Cunmmingham
VP engineering - GetGenetica - Flora AI
“LangWatch has brought us our monitoring and evaluations with an intuitive analytics dashboard. The Optimization Studio with DSPy brings the kind of progress we were hoping for as a partner."
Lane Cunmmingham
Kjeld O
AI Architect, Entropical AI agency
"I’ve seen a lot of LLMops tools and LangWatch is solving a problem that everyone building with AI will have when going to production. The best part is their product is so easy to use."
Kjeld O
Amit Huli
Head of AI - Roojoom
“When I saw LangWatch for the first time, it reminded me of how we used to evaluate models in classic machine learning. I knew this was exactly what we needed to maintain our high standards at enterprise scale"
Amit Huli
David Nicol
CTO - Productive Healthy Work Lives
Having evaluated numerous platforms, LangWatch was the only one that meaningfully resolved our quality gaps. The difference has been substantial
David Nicol
Lane Cunmmingham
VP engineering - GetGenetica - Flora AI
“LangWatch has brought us our monitoring and evaluations with an intuitive analytics dashboard. The Optimization Studio with DSPy brings the kind of progress we were hoping for as a partner."
Lane Cunmmingham
Kjeld O
AI Architect, Entropical AI agency
"I’ve seen a lot of LLMops tools and LangWatch is solving a problem that everyone building with AI will have when going to production. The best part is their product is so easy to use."
Kjeld O
Amit Huli
Head of AI - Roojoom
“When I saw LangWatch for the first time, it reminded me of how we used to evaluate models in classic machine learning. I knew this was exactly what we needed to maintain our high standards at enterprise scale"
Amit Huli
David Nicol
CTO - Productive Healthy Work Lives
Having evaluated numerous platforms, LangWatch was the only one that meaningfully resolved our quality gaps. The difference has been substantial
David Nicol
Lane Cunmmingham
VP engineering - GetGenetica - Flora AI
“LangWatch has brought us our monitoring and evaluations with an intuitive analytics dashboard. The Optimization Studio with DSPy brings the kind of progress we were hoping for as a partner."
Lane Cunmmingham
Kjeld O
AI Architect, Entropical AI agency
"I’ve seen a lot of LLMops tools and LangWatch is solving a problem that everyone building with AI will have when going to production. The best part is their product is so easy to use."
Kjeld O
Amit Huli
Head of AI - Roojoom
“When I saw LangWatch for the first time, it reminded me of how we used to evaluate models in classic machine learning. I knew this was exactly what we needed to maintain our high standards at enterprise scale"
Amit Huli
David Nicol
CTO - Productive Healthy Work Lives
Having evaluated numerous platforms, LangWatch was the only one that meaningfully resolved our quality gaps. The difference has been substantial
David Nicol
Lane Cunmmingham
VP engineering - GetGenetica - Flora AI
“LangWatch has brought us our monitoring and evaluations with an intuitive analytics dashboard. The Optimization Studio with DSPy brings the kind of progress we were hoping for as a partner."
Lane Cunmmingham
Kjeld O
AI Architect, Entropical AI agency
"I’ve seen a lot of LLMops tools and LangWatch is solving a problem that everyone building with AI will have when going to production. The best part is their product is so easy to use."
Kjeld O