PromptHelm vs PromptMetrics
PromptHelm
prompthelm.appPromptMetrics
github.comSide by side
| Figure | PromptHelm | PromptMetrics |
|---|---|---|
| Price from | $39/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 4 | 0 |
| Spec score · AI Prompt Management Software | 9.1 (#4) | 7.5 (#21) |
| Spec score · Prompt Management Software | 9.0 (#5) | 7.5 (#21) |
| Headquarters | London, United Kingdom | Berlin, Germany |
| Prompt versioning | Prompts are managed as versioned artifacts with production and development environments, history, diffs and rollback. | Prompts can be stored, versioned, retrieved, and rolled back through a REST API or CLI, with changes recorded in Git. |
| SDKs | The pricing comparison lists SDKs for Node, Python, iOS, Android, Java, and .NET. | The project lists Node.js and Python SDKs for programmatic access. |
| What it does | PromptHelm is a prompt-management platform for LLM engineering teams that versions, deploys and monitors prompts. | PromptMetrics is a lightweight, self-hosted prompt registry for versioning prompts and tracking LLM activity. |
Plans
PromptHelm
- FreeFree
- Pro$39 a month
- Business$249 a month
- EnterprisePriced on request
In their own words
PromptHelm
PromptHelm is a prompt management platform for engineering teams building LLM features. It supports deploying prompts by environment, keeping version histories, rolling back changes, and testing in a playground. Its multi-provider gateway names OpenAI, Anthropic, Google, and DeepSeek. Teams can track token spending by model and prompt, review usage and cost trends, and set budget alerts. Request monitoring filters by status, model, or prompt and provides request and response details for debugging; analytics cover P50/P95/P99 latency, error rates, and model performance comparisons. SDKs are listed for Node, Python, iOS, Android, Java, and.NET. Plans include a free tier, Pro at $39 a month, and Business at $249 a month; Enterprise pricing is custom and unlisted. New accounts receive an automatic 14-day Pro trial without a credit card. The documentation describes access as invite-only, with private-beta invitations rolling out weekly.
PromptMetrics
PromptMetrics is a free, open-source, self-hosted prompt registry for managing prompt versions and observing LLM activity. Prompts can be stored, retrieved, and rolled back through a REST API or CLI, with changes recorded in Git. The system logs request metadata including model, tokens, latency, cost, and custom tags, and exports data to stdout JSON or OpenTelemetry. It also tracks agent traces, spans, workflow runs, and prompt versions labeled by environment. Evaluation suites can run against datasets with budget tracking, while A/B tests compare prompt versions and can promote a winner. A compliance scanner checks prompts for PII, API keys, URLs, and IP addresses, then assigns risk scores. Its playground can proxy calls for OpenAI, Anthropic, Cohere, Ollama, and Azure OpenAI. Prompt content can use filesystem, GitHub, or S3 storage; metadata can use SQLite or PostgreSQL. Interfaces include a REST API, CLI, optional Next.js dashboard, and Node.js and Python SDKs. Installation options include npm, Docker Compose, and building from source. The repository identifies the license as MIT.