# PromptLayer vs Vellum

| Attribute | PromptLayer | Vellum |
|---|---|---|
| **Vioscale score** | 70.2 (54% (medium)) | 66.9 (37% (low)) |
| deployment.options | `{"cloud":true,"hybrid":true,"on_prem":true,"self_hosted":true}` | `{"cloud":true}` |
| description.long | A platform combining prompt versioning, evaluation tools, and observability for LLM applications. It enables domain experts to test and refine prompts, track API usage and costs, and monitor application performance—all without changing application code. | 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 | `{"caching":"exact","ab_testing":true,"open_source":true,"pricing_model":"usage/seat-based-saas","rate_limiting":true,"self_hostable":true,"deployment_model":"managed-SaaS","multi_step_flows":true,"tracing_included":true,"versioning_model":"git-native","approval_workflow":true,"diff_and_rollback":true,"streaming_support":true,"non_engineer_editing":true,"openai_compatible_api":true,"multi_model_playground":true,"deploy_without_redeploy":true,"llm_judge_or_human_eval":true,"request_cost_observability":true}` | `{"pricing_model":"usage/seat-based-saas","deployment_model":"managed-SaaS","multi_step_flows":true,"approval_workflow":true,"non_engineer_editing":true}` |
| integrations.count | 7 | 11 |
| integrations.list | `[{"name":"Pydantic AI"},{"name":"OpenAI"},{"name":"Anthropic"},{"name":"Google GenAI"},{"name":"AWS Bedrock"},{"name":"OpenTelemetry"},{"name":"Azure OpenAI"},{"name":"Vertex AI"}]` | `[{"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 | `{"hqCountry":"US","primaryMarkets":["US","EU"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"ios":true,"mac":true,"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Free","summary":"Free","features":["5 Users","2.5k/month Requests","1 Workspace","250/month Eval Cell Executions","10MB max per Dataset","Basic Support"],"minSeats":5,"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"for hackers","contactSales":false,"includedLimits":{"users":"5","requests":"2.5k/month","dataset_size":"10MB","eval_executions":"250/month"}},{"free":false,"name":"Pro","summary":"$49/month plus $0.003/transaction","features":["Unlimited Playgrounds","Unlimited Workspaces","150MB max per Dataset","Webhooks Included","Dedicated Support"],"components":[{"kind":"fixed","amount":49,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"transaction"},"kind":"metered","amount":0.003,"currency":"USD"}],"description":"for small teams","contactSales":false,"includedLimits":{"workspaces":"Unlimited","playgrounds":"Unlimited","dataset_size":"150MB"}},{"free":false,"name":"Team","summary":"$500/month plus $0.002/transaction","features":["25 Users","100k+/month Requests","7.5k+/month Eval Cell Executions","1GB max per Dataset","Webhooks Included","Role Based Access Controls","Dedicated Support"],"minSeats":25,"components":[{"kind":"fixed","amount":500,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"transaction"},"kind":"metered","amount":0.002,"currency":"USD"}],"description":"for growing teams","contactSales":false,"includedLimits":{"users":"25","requests":"100k+/month","dataset_size":"1GB","eval_executions":"7.5k+/month"}},{"free":false,"name":"Enterprise","summary":"Custom pricing, contact sales","features":["Custom limits on everything","Role Based Access Controls","Deployment Approvals","HIPAA with BAA","Flexible Hosting Options","Dedicated Support","Data Retention Control"],"contactSales":true}],"summary":"Free tier available. Pro starts at $49/month, Team at $500/month, both with usage-based billing ($0.002–$0.003 per transaction). Enterprise custom pricing.","currency":"USD","freeTier":true,"sourceUrl":"https://www.promptlayer.com/pricing/","retrievedAt":"2026-08-21T12:43:41.184Z","startingPrice":{"amount":49,"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 | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | mid | mid |
| pricing.starting_price | `{"amount":49,"currency":"USD"}` | `{"amount":30,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| security.gdpr | yes | - |
| security.hipaa | yes | - |
| security.soc2 | yes | - |

## Capabilities (Prompt Management)

| Capability | PromptLayer | Vellum |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Versioning model | Git native | - |
| 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 2026-09-01T17:21:01.498Z. "-" = undocumented, not absent.*