LangSmith vs Modal
Updated June 2026 · A structured head-to-head comparison.
The verdict
Both LangSmith and Modal are credible ai machine learning tools, and the right pick comes down to your priorities.
LangSmith — Debug and monitor LLM apps.
Choose Modal if you'd rather have a higher overall rating (4.7/5). Serverless compute for AI and data.
LangSmith vs Modal: side by side
| Dimension | LangSmith | Modal |
|---|---|---|
| Starting price | Free – $39/user/mo | Free |
| Free plan | Yes | Yes |
| Pricing model | Freemium | Usage-based |
| Best for | Ai Developers | Developers, Ml Teams |
| Platforms | Web, Api | Web, Api |
| Rating | 4.4/5 | 4.7/5Winner |
LangSmith key facts
- Vendor
- LangChain
- Pricing
- Freemium — Free – $39/user/mo
- Free tier
- Yes
- Platforms
- Web, Api
- Best for
- Ai Developers
- Editor rating
- 4.4 / 5
- Founded
- 2023
- Headquarters
- San Francisco, CA, USA
Modal key facts
- Vendor
- Modal Labs
- Pricing
- Usage-based — Free
- Free tier
- Yes
- Platforms
- Web, Api
- Best for
- Developers, Ml Teams
- Editor rating
- 4.7 / 5
- Founded
- 2021
- Headquarters
- New York, NY, USA
Frequently asked questions
Is LangSmith better than Modal?
Neither is universally better — Modal edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.
Is LangSmith or Modal cheaper?
LangSmith is the more affordable of the two to get started, at free – $39/user/mo. LangSmith starts at free – $39/user/mo; Modal starts at free.
Can LangSmith replace Modal?
Yes for most teams — both are ai machine learning tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.