# LangWatch

According to OpenAITools.app telemetry verified on 2026-10-07, LangWatch (langwatch.ai) is an AI platform indexed under Large Language Models (LLMs) generating 30.12K monthly visits with a month-over-month traffic delta of +2.58K (+9.4%). Its primary geographic market is United States (31.5% traffic share), and it operates on a Contact for Pricing pricing model. Top competing alternatives by monthly volume include ChatGPT (5.92B visits/mo), Google Gemini (2.64B visits/mo), DeepSeek (357.4M visits/mo).

Trace, test and evaluate every LLM call

## Key Telemetry & Specifications

| Metric | Value |
| :--- | :--- |
| Tool Name | LangWatch |
| Handle | langwatch |
| Official Domain | langwatch.ai |
| Website URL | https://www.langwatch.ai |
| Categories | Large Language Models (LLMs), AI Monitor, AI Agent, AI Testing, AI Developer Tools, Prompt Engineering |
| Pricing Model | Contact for Pricing |
| Monthly Visits | 30,123 |
| MoM Traffic Change | 2,584 |
| MoM Growth Rate | +9.4% |
| Primary Market | United States |
| Market Share | 31.5% |
| Direct Visits | 12,158 |
| Organic Search Visits | 0 |
| Social Visits | 0 |
| Referral Visits | 3,166 |
| Email Visits | 885 |
| Review Score | 5 |
| Saved Count | 0 |
| Supported Platforms | Website |
| Billing Platforms |  |
| Attributes | Features: Website; Pricing: Contact for Pricing |
| Tags | LLM Observability, LLM Evaluation, LLM Monitoring, LLMOps, AI Quality, AI Security, Anomaly Detection, Root Cause Analysis, Data Annotation, Prompt Engineering, DSPy Visualizer, OpenTelemetry, GDPR Compliance, ISO27001 Certified |

## Overview

LangWatch is an LLM observability and evaluation platform for AI platform teams. It traces every agent step with OpenTelemetry, runs LLM-as-a-judge evaluations and simulated user scenarios, manages and versions prompts, and routes model calls through an AI gateway, with cloud, self-hosted and hybrid deployment options.

## Pricing & Plans

Contact the team for pricing; cloud, self-hosted and hybrid deployment options are available.

## Strengths

- Works with existing frameworks through OpenTelemetry
- Combines tracing, evaluation and prompt management in one tool
- Self-hosting solves data residency concerns

## Limitations

- Requires engineering effort to instrument applications
- Pricing is quote-based
- The feature set can feel extensive for small teams

## Frequently Asked Questions

### Which frameworks does LangWatch support?
Any stack that sends OpenTelemetry traces, including LangChain, LangGraph, CrewAI, Pydantic AI and the Vercel AI SDK, plus Python and TypeScript SDKs.

### Can it be self-hosted?
Yes. LangWatch offers cloud, self-hosted (Docker or Kubernetes) and hybrid deployment.

### What is LangWatch's monthly traffic and growth trend?
LangWatch currently receives 30.12K monthly visits, with a month-over-month traffic change of +2.58K (+9.4% growth rate). Its primary source market is United States (31.5% share), including 12.16K direct visits/mo and 0 organic search visits/mo.

### Is LangWatch free? What is its pricing model?
LangWatch operates on a Contact for Pricing pricing model. Contact the team for pricing; cloud, self-hosted and hybrid deployment options are available. Supported billing and checkout platforms include: not listed.

### What are the best LangWatch alternatives in 2026?
Based on OpenAITools.app category traffic and feature fit, the top five alternatives to LangWatch are: 1. ChatGPT (5.92B visits/mo); 2. Google Gemini (2.64B visits/mo); 3. DeepSeek (357.4M visits/mo); 4. OpenAI Platform (259.46M visits/mo); 5. Google AI Studio (110.43M visits/mo).

### Which platforms and core AI capabilities does LangWatch support?
LangWatch is classified under Large Language Models (LLMs), AI Agent, AI Developer Tools, AI Monitor, supports the following platforms: Website, and its core capability tags include: LLM Observability, LLM Evaluation, LLM Monitoring, LLMOps, AI Quality, AI Security.

## Alternatives

| Tool Name | Monthly Visits | Pricing Model | Compare |
| :--- | :--- | :--- | :--- |
| [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 5,920,597,264 | Freemium | [Compare](https://openaitools.app/compare/chatgpt-4-vs-langwatch) |
| [Google Gemini](https://openaitools.app/tool/gemini-gemini-advanced) | 2,641,252,633 | Freemium | [Compare](https://openaitools.app/compare/gemini-gemini-advanced-vs-langwatch) |
| [DeepSeek](https://openaitools.app/tool/deepseek) | 357,399,386 | Freemium | [Compare](https://openaitools.app/compare/deepseek-vs-langwatch) |
| [OpenAI Platform](https://openaitools.app/tool/openai) | 259,461,422 | Paid | [Compare](https://openaitools.app/compare/langwatch-vs-openai) |
| [Google AI Studio](https://openaitools.app/tool/google-ai-studio) | 110,427,056 | Freemium | [Compare](https://openaitools.app/compare/google-ai-studio-vs-langwatch) |
| [Gemini 4 Carbon (Gemini Carbon 4)](https://openaitools.app/tool/gemini-4-carbon) | 110,427,056 | Freemium | [Compare](https://openaitools.app/compare/gemini-4-carbon-vs-langwatch) |
| [Perplexity](https://openaitools.app/tool/perplexity-ai) | 91,705,178 | Freemium | [Compare](https://openaitools.app/compare/langwatch-vs-perplexity-ai) |
| [Qwen 4 (Alibaba Qwen4)](https://openaitools.app/tool/qwen-4) | 48,650,000 | Freemium | [Compare](https://openaitools.app/compare/langwatch-vs-qwen-4) |
| [Airtable AI Assistant](https://openaitools.app/tool/airtable-ai-assistant) | 25,813,226 | Freemium, Free Trial, Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/airtable-ai-assistant-vs-langwatch) |
| [OpenRouter](https://openaitools.app/tool/openrouter-ai) | 21,267,929 | Paid | [Compare](https://openaitools.app/compare/langwatch-vs-openrouter-ai) |
| [venice.ai](https://openaitools.app/tool/venice-ai) | 20,263,295 | Freemium | [Compare](https://openaitools.app/compare/langwatch-vs-venice-ai) |
| [Use AI](https://openaitools.app/tool/use-ai) | 9,750,913 | Free Trial, Paid | [Compare](https://openaitools.app/compare/langwatch-vs-use-ai) |

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Source: https://openaitools.app/tool/langwatch