LangSmith
8.0#1 in llm gateway software$39 usage-basedFree planWebAPILinuxmacOS
VisitLangSmith vs PromptForge
PromptForge
4.7#12 in prompting toolWeb
VisitWhat both publish
| Fact | LangSmith | PromptForge |
|---|---|---|
| Founded | 2023 | 2026 |
| Headquarters | San Francisco, California, United States | Ireland |
LangSmith plans
- DeveloperFree
- Plus$39 a month
- EnterprisePriced on request
PromptForge plans
No prices published.
Pick LangSmith if…
LangSmith suits teams building or operating AI agents that need evaluation, prompt workflows, and observability. It supports both hosted and self-hosted deployment options.
Pick PromptForge if…
You want what its maker publishes above — check its page for the details.