# Promptmetheus vs Vellum

**Leader by Vioscale score:** Vellum

| Attribute | Promptmetheus | Vellum |
|---|---|---|
| **Vioscale score** | 55.1 (66% (medium)) | 66.9 (37% (low)) |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | A platform for building structured prompts through modular components, testing across 150+ language models, evaluating outputs, and enabling teams to collaboratively develop shared prompt libraries and workflows. | 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. |
| features.capabilities | `{"ab_testing":true,"pricing_model":"usage/seat-based-saas","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","deployment_model":"managed-SaaS","multi_step_flows":true,"approval_workflow":true,"non_engineer_editing":true}` |
| integrations.count | - | 11 |
| integrations.list | - | `[{"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"}]` |
| 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}` |
| pricing | `{"type":"subscription","plans":[{"free":false,"name":"Team","summary":"$19/month per additional user","components":[{"kind":"per_unit","unit":"seat","amount":19,"period":"month","currency":"USD"}],"description":"Team collaboration with shared workspaces","contactSales":false},{"free":false,"name":"Enterprise","contactSales":true}],"summary":"7-day free trial. $19/month per additional user. Enterprise available.","currency":"USD","freeTier":false,"sourceUrl":"https://promptmetheus.com","retrievedAt":"2026-08-21T11:09:39.935Z","freeTrialDays":7,"startingPrice":{"unit":"seat","amount":19,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"hybrid","plans":[{"free":true,"name":"Free","summary":"Free with starter credits","features":["Free starter credits","Multi-platform access","Memory and context"],"description":"Free credits to start","contactSales":false},{"free":false,"name":"Paid","summary":"$30/mo","features":["Larger machine","More storage","Bundled credits"],"commitment":"monthly","components":[{"kind":"fixed","amount":30,"period":"month","currency":"USD"}],"description":"Larger machine, more storage, bundled credits","contactSales":false}],"summary":"Free tier with credits, paid plans from $30/mo","currency":"USD","freeTier":true,"sourceUrl":"https://vellum.ai","retrievedAt":"2026-08-21T13:54:36.865Z","startingPrice":{"amount":30,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | no | yes |
| pricing.model | commercial | 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: Vioscale. Generated 2026-09-01T15:13:55.726Z. "-" = undocumented, not absent.*