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LangChain
DeepEval vs LangChain
A side-by-side comparison of pricing, ratings, features, pros and cons.
| Overview | |||
| Description | LLM evaluation framework with 14+ built-in metrics. `#opensource` `#free` | Agent engineering platform and open-source frameworks for building, evaluating, and deploying AI agents in production. | |
| Category | |||
| Developer | Confident AI Inc. | Langchain | |
| Verified Status | No | ||
| Last Updated | Aug 2026 | Aug 2026 | |
| Pricing | |||
| Pricing Model | Open Source | Free | |
| Free Plan | Yes | Yes | |
| Free Trial | No | — | |
| Open Source | Yes | No | |
| Capabilities | |||
| API Access | No | — | |
| Features | • 50+ research-backed evaluation metrics • LLM-as-a-judge scoring with explainable reasoning • Pytest-native, runs in CI/CD • Synthetic test-case generation from knowledge bases • Multi-modal support (text, images, audio) • Free and open source (Apache 2.0) | • Open-source agent frameworks: LangChain, LangGraph, deepagents • LangSmith for tracing, evaluation, and observability • SDKs for Python, TypeScript, Go, and Java • Fleet no-code agent builder • OpenTelemetry-compatible tracing • Deployment infrastructure for production agents | |
| Tags | deepevalevaluationframeworkbuiltmetricsopensource | frameworkllmcomposable | |
| Trust and Engagement | |||
| Review Count | 0 | 0 | |
| Saves | 0 | 0 | |
| Views | 9 | 78 | |
| Quality Score | 33/100 | 53/100 | |
| Website Status | Online | Online | |
| Availability | |||
| Website | deepeval.com | langchain.com | |
| Social Links | 2 linked | 2 linked | |
| Screenshots | No | Yes | |
| Reviews | |||
| Pros | • Free to use | • Free to use • Recommended by our editors | |
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