LangSmith

LangSmith

LangChain
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+

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About

Unexpected results happen all the time. With full visibility into the entire chain sequence of calls, you can spot the source of errors and surprises in real time with surgical precision. Software engineering relies on unit testing to build performant, production-ready applications. LangSmith provides that same functionality for LLM applications. Spin up test datasets, run your applications over them, and inspect results without having to leave LangSmith. LangSmith enables mission-critical observability with only a few lines of code. LangSmith is designed to help developers harness the power–and wrangle the complexity–of LLMs. We’re not only building tools. We’re establishing best practices you can rely on. Build and deploy LLM applications with confidence. Application-level usage stats. Feedback collection. Filter traces, cost and performance measurement. Dataset curation, compare chain performance, AI-assisted evaluation, and embrace best practices.

About

Papaya is the optimization engine for AI agents. Engineers connect their agents via SDK, and Papaya analyzes production traces to find improvements across context, prompts, prompt caching, subagents, and tool calls. It delivers actionable recommendations ranked by quality, latency, and cost impact, with the production runs that produced each finding. Approved improvements can be pushed to production as pull requests. Papaya runs more than 200 research-backed analyses and typically finds a 10%+ quality improvement on the first workflow analysis.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Developers seeking a platform to design, build, and test their applications

Audience

Engineering teams operating production LLM agents and agentic workflows

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

No information available.
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

LangChain
United States
www.langchain.com/langsmith

Company Information

Papaya
Founded: 2026
United States
papaya.fyi/

Alternatives

Alternatives

Braintrust

Braintrust

Braintrust Data
Griptape

Griptape

Foundry
LangGraph

LangGraph

LangChain

Categories

Categories

Integrations

AgentForge
Azure Marketplace
Disco.dev
LangChain
LangGraph
Noma
TierZero
Voker
ZenML

Integrations

AgentForge
Azure Marketplace
Disco.dev
LangChain
LangGraph
Noma
TierZero
Voker
ZenML
Claim LangSmith and update features and information
Claim LangSmith and update features and information
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Claim Papaya and update features and information