LangSmith vs Promptitude
LangSmith
langchain.com
Promptitude
promptitude.ioSide by side
| Figure | LangSmith | Promptitude |
|---|---|---|
| Price from | $39/mo | $39/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 3 | 5 |
| Spec score · Prompting Tool | 9.3 (#2) | 7.8 (#5) |
| Headquarters | San Francisco, California, United States | Saarlaender Str. 10, Burgthann 90559, Germany |
| Integrations | Documented integrations cover OpenAI, Anthropic, Bedrock, Gemini, Mistral, LiteLLM, OpenTelemetry, CrewAI, Vercel AI SDK, PydanticAI, AutoGen and many other frameworks and providers. | Listed integrations include Amazon Bedrock, Anthropic, Google AI, Google Sheets, Groq, Hugging Face, Make.com, Microsoft Azure, NLP Cloud, OpenAI, Perplexity, and Qwen. |
| Prompt tools | Prompt Hub and Playground provide prompt versioning, testing, comparison and AI-assisted improvement. | The platform provides a playground for interactive prompt development and one-click comparison across AI providers and models. |
| Security | LangSmith's trust center lists SOC 2 Type II, ISO 27001:2022, GDPR and HIPAA compliance. | The pricing page FAQ states that stored content is fully encrypted and inaccessible to OpenAI. |
| Support | The Developer plan includes community support, and the Enterprise plan lists a support SLA. | The plan comparison lists Standard, Business, and Premium support for SaaS, Growth, and Enterprise respectively. |
Plans
Promptitude
- FreeFree
- Starter$39 a month
- SaaS$89 a month
- Growth$279 a month
- EnterprisePriced on request
In their own words
LangSmith
LangSmith is a commercial agent-engineering platform for building, evaluating, deploying, monitoring, and improving AI agents. It supports offline evaluations on curated datasets and real-time scoring of production interactions. Evaluation methods include human review, heuristic checks, LLM-as-judge evaluators, pairwise comparisons, and custom Python or TypeScript evaluators. Annotation queues route runs to subject-matter experts for feedback that can calibrate evaluations, improve prompts, or augment datasets. The Playground compares prompt versions or model providers, and LangSmith chat can auto-improve prompts. Observability includes agent and retrieval tracing, token and general cost tracking, trajectory monitoring, online evaluations, and webhook or PagerDuty alerts. Traces can arrive through SDKs or an API from LangGraph, custom Python, or other stacks; SDKs are listed for Python, TypeScript, Go, and Java. Hosting ranges from cloud to hybrid and self-hosted Enterprise options. The Developer plan costs nothing, Plus costs $39 a month, and Enterprise pricing is custom.
Promptitude
Promptitude is a web and API platform for teams creating, testing, managing, and deploying prompts in applications. Its interactive playground supports prompt development and one-click comparisons across AI providers and models. Content Storage lets users add their own material to personalize prompt results. Prompts can be shared or embedded on websites and applications, with password protection and visitor-generation limits. Listed integrations include Amazon Bedrock, Anthropic, Google AI, Google Sheets, Groq, Hugging Face, Make.com, Microsoft Azure, NLP Cloud, OpenAI, Perplexity, and Qwen. The REST Prompt API provides code snippets for integration into web and mobile applications. The pricing FAQ says stored content is encrypted and inaccessible to OpenAI. Free accounts include 100,000 tokens for testing, subject to monthly usage limits; the Free plan allows two users, five prompts, two assistants, and 100 generations per month. Paid plans start at $39 a month billed yearly. Prompt A/B tests and the Paid Marketplace are marked as coming soon.