# Promptmetheus vs Vellum

**Leader by vioscaleAI score:** Vellum

| Attribute | Promptmetheus | Vellum |
|---|---|---|
| **vioscaleAI score** | 46.1 (75% (high)) | 57.3 (35% (low)) |
| content.faq | `[{"answer":"A cloud-based platform where teams can compose prompts, test them across 150+ language models, configure custom evaluators, and track iterations with version control. It is indexed under Prompt Management.","source":"https://promptmetheus.com","question":"What is Promptmetheus?","confidence":0.6},{"answer":"Promptmetheus does not publish its prices. Pricing is quoted on request, across 2 plans (Free and Enterprise), so the figure depends on your seat count and requirements. We record this as a pricing-transparency signal rather than guessing a number. Pricing changes often, so verify at source before relying on it.","source":"https://promptmetheus.com","question":"How much does Promptmetheus cost?","confidence":0.6},{"answer":"We have confirmed browser-based access to Promptmetheus. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://promptmetheus.com","question":"What platforms does Promptmetheus support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Promptmetheus, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://promptmetheus.com","question":"Can Promptmetheus be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Promptmetheus. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Promptmetheus not holding them. Always confirm compliance directly before you rely on it.","source":"https://promptmetheus.com/security","question":"What security certifications does Promptmetheus have?","confidence":0.7},{"answer":"Promptmetheus is available worldwide. Its primary market is the United States.","source":"https://promptmetheus.com","question":"Where is Promptmetheus available?","confidence":0.5}]` | `[{"answer":"A cloud-based AI assistant that maintains continuous context about your preferences and history, accessible via web, desktop, mobile, and messaging platforms, capable of automating tasks like email, calendar management, and web browsing with your explicit approval for each action. It is indexed under Prompt Management.","source":"https://vellum.ai","question":"What is Vellum?","confidence":0.6},{"answer":"Vellum offers a free tier, so you can start without paying. Paid plans start at $30 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://vellum.ai","question":"Is Vellum free?","confidence":0.6},{"answer":"Vellum supports the web, macOS, iOS and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://vellum.ai","question":"What platforms does Vellum support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Vellum, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://vellum.ai","question":"Can Vellum be self-hosted?","confidence":0.6},{"answer":"We have confirmed 11 integrations for Vellum, including Gmail, Google Calendar, Slack, Telegram, Web browsing, Computer control, Phone calls and Image generation, plus 3 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://vellum.ai","question":"What does Vellum integrate with?","confidence":0.6},{"answer":"Vellum is available worldwide. Its primary market is the United States.","source":"https://vellum.ai","question":"Where is Vellum available?","confidence":0.5}]` |
| deployment.options | `{"cloud":true}` | `{"cloud":true,"hybrid":true,"self_hosted":true}` |
| description.long | A collaborative workspace for prompt engineering with automated quality validation, real-time team syncing, detailed version tracking, and support for testing across a broad model catalog. | A personal AI assistant that runs locally or in the cloud, maintains long-term memory, automates tasks across your tools and files, and is available across all your devices. |
| features.capabilities | `{"ab_testing":true,"pricing_model":"usage/seat-based-saas","self_hostable":false,"deployment_model":"managed-SaaS","multi_step_flows":true,"tracing_included":true,"versioning_model":"UI-hosted registry","diff_and_rollback":true,"non_engineer_editing":true,"multi_model_playground":true,"llm_judge_or_human_eval":true}` | `{"pricing_model":"usage/seat-based-saas","self_hostable":true,"deployment_model":"managed-SaaS","multi_step_flows":true,"approval_workflow":true,"non_engineer_editing":true,"multi_model_playground":true}` |
| integrations.count | 1 | 3 |
| integrations.list | `[{"name":"LiteLLM SDK","native":true}]` | `[{"name":"Gmail"},{"name":"Google Calendar"},{"name":"Slack"},{"name":"Telegram"},{"name":"Web browsing"},{"name":"Computer control"},{"name":"Phone calls"},{"name":"Image generation"},{"name":"Coding"},{"name":"App building"},{"name":"Task management"},{"name":"Google Workspace","native":true,"category":"productivity"},{"name":"Notion","native":true,"category":"productivity"}]` |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true,"ios":true,"mac":true,"web":true,"android":true}` |
| pricing | `{"type":"subscription","plans":[{"free":true,"name":"Free Trial","summary":"Free 7-day trial","features":["15 providers","150+ models","Automatic evaluators"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"7-day free trial","contactSales":false,"includedLimits":{"models":"150+","providers":"15"}},{"free":false,"name":"Paid","summary":"$19/month per additional user","features":["Shared workspace","Real-time collaboration"],"components":[{"kind":"per_unit","unit":"user","amount":19,"period":"month","currency":"USD"}],"description":"Per additional user","contactSales":false}],"summary":"Free 7-day trial, then $19/month per additional user","currency":"USD","freeTier":true,"sourceUrl":"https://promptmetheus.com","retrievedAt":"2026-10-02T16:17:21.052Z","freeTrialDays":7,"startingPrice":{"unit":"user","amount":19,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"hybrid","plans":[{"free":true,"name":"Free (Local)","components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Runs on your machine locally","contactSales":false},{"free":false,"name":"Mighty","components":[{"kind":"fixed","amount":30,"period":"month","currency":"USD"}],"description":"Vellum Cloud with dedicated compute and storage","contactSales":false},{"free":false,"name":"Super","components":[{"kind":"fixed","amount":100,"period":"month","currency":"USD"}],"description":"Vellum Cloud with dedicated compute and storage","contactSales":false},{"free":false,"name":"Ultra","components":[{"kind":"fixed","amount":200,"period":"month","currency":"USD"}],"description":"Vellum Cloud with dedicated compute and storage","contactSales":false}],"summary":"Free to download and run locally, or from $30/month for cloud hosting","currency":"USD","freeTier":true,"sourceUrl":"https://vellum.ai","retrievedAt":"2026-10-02T16:21:04.757Z","startingPrice":{"amount":30,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | mid | mid |
| pricing.starting_price | `{"amount":19,"currency":"USD"}` | `{"amount":30,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| reliability.status_page | yes | - |
| security.gdpr | yes | - |
| security.pci | yes | - |

## Capabilities (Prompt Management)

| Capability | Promptmetheus | Vellum |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Versioning model | UI hosted registry | - |
| Diff and rollback | ✓ | - |
| Deploy without redeploy | - | - |
| Non engineer editing | ✓ | ✓ |
| Multi model playground | ✓ | ✓ |
| Ab testing | ✓ | - |
| LLM judge or human eval | ✓ | - |
| Multi step flows | ✓ | ✓ |
| Approval workflow | - | ✓ |
| Tracing included | ✓ | - |
| Self hostable | ✗ | ✓ |
| Deployment model | Managed SaaS | Managed SaaS |
| Pricing model | Usage/seat based saas | Usage/seat based saas |

*Source: vioscaleAI. Generated 2026-10-16T19:19:45.477Z. "-" = undocumented, not absent.*