Promptfoo vs PromptHelm
Promptfoo
promptfoo.devPromptHelm
prompthelm.appSide by side
| Figure | Promptfoo | PromptHelm |
|---|---|---|
| Price from | Free | $39/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 3 | 4 |
| Spec score · AI Prompt Management Software | 8.7 (#5) | 9.1 (#4) |
| Documentation depth | The documentation includes installation, evaluations, assertions, runtime, red teaming, providers, integrations, code scanning, model audit, enterprise, API references, and release notes. | The docs include quickstarts, concepts, version-management guides, CI/CD and cost guides, an API reference, and GitHub examples. |
| Headquarters | Promptfoo identifies San Francisco, California as its base and headquarters. | London, United Kingdom |
| Product | Promptfoo helps developers and enterprises build secure, reliable AI applications. | PromptHelm describes itself as a prompt management platform for LLM engineering teams to version, deploy, and monitor prompts across providers. |
| Providers | The getting-started guide says Promptfoo supports 60+ providers, including OpenAI, Anthropic, Google, and local models such as Ollama. | The site names OpenAI, Anthropic, Google, and DeepSeek among the providers available through its multi-provider gateway. |
| Support | Community support is provided through chat and GitHub issues, while Enterprise includes professional services and dedicated Slack support. | Listed support ranges from community on Free to email with a 48-hour response on Pro, priority plus Slack on Business, and a dedicated SE on Enterprise. |
| What it does | Promptfoo is a local-first open-source CLI and library for evaluating and red-teaming LLM applications. | PromptHelm is a prompt-management platform for LLM engineering teams that versions, deploys and monitors prompts. |
Plans
PromptHelm
- FreeFree
- Pro$39 a month
- Business$249 a month
- EnterprisePriced on request
In their own words
Promptfoo
Promptfoo helps developers and enterprises evaluate prompts and test AI applications for security risks. It compares prompt outputs across multiple models in a web view. Red-team testing simulates users to look for prompt injections, jailbreaks, data leaks, business rule violations and insecure agent tool use. Its getting-started guide lists more than 60 providers, including OpenAI, Anthropic, Google and local models such as Ollama. Integrations include CI systems such as GitHub Actions, GitLab CI, Jenkins, Azure Pipelines, CircleCI and Bitbucket Pipelines, plus Splunk, Burp Suite, Google Sheets and MCP. Installation is available through npm, npx or Homebrew. Promptfoo requires Node.js 22.22.0 or newer and recommends Node.js 24 LTS. The free Community plan includes all LLM evaluation features and 10k red-team probes per month, and can run locally or be self-hosted. Enterprise includes managed cloud deployment; On-Premise runs on customer infrastructure. Promptfoo says it is based in San Francisco, is now part of OpenAI and remains open source.
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.