
Langfuse
Helicone AI
LangChain
Portkey
Braintrust
Braintrust.dev
Humanloop
Build and deploy LLM applications with confidence
Langfuse
Corrath
PerUnit
Spanlens
RapidClaw.dev
MarginDash
Netra
Stop surprise AI bills. When you hit $50, it stops. Not an alert — it stops.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|
LLM
LLMCap
|
|
|---|---|---|
| Website | langchain.com | llmcap.io |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
LangSmith is recommended for AI developers, machine learning engineers, and businesses aiming to build, test, and optimize applications based on language models. It is particularly useful for teams that require robust evaluation tools and a streamlined process for managing and deploying language-driven applications.
No analysis of LLMCap yet.
Walkthroughs and reviews on video.
🦜🛠️ Getting started with LangSmith - Integrating with LANGCHAIN powered Web Applications & Chatbots
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using LangSmith and LLMCap. For example, how are they different and which one is better?
When comparing LangSmith and LLMCap, you can also consider the following products.

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Open-source LLM Observability for Developers
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Centralized developer AI Gateway. Protect your production applications from prompt injections, runaway costs, and provider outages under 5ms.
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Framework for building applications with LLMs through composability
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Know your AI costs per customer, per feature, per tier. PerUnit attributes every dollar of AI provider spend to the customers and features driving it.
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Build production-grade & reliable AI apps with Portkey
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