# PromptLayer vs Vellum

**Leader by vioscaleAI score:** PromptLayer

| Attribute | PromptLayer | Vellum |
|---|---|---|
| **vioscaleAI score** | 63.3 (72% (medium)) | 57.3 (35% (low)) |
| content.faq | `[{"answer":"A service that records interactions with various LLM providers, allowing developers to review past requests, troubleshoot issues, and restore previous prompt configurations. Includes distributed tracing, version control, regression testing, and automated evaluation for prompts and AI agents. It is indexed under Prompt Management.","source":"https://promptlayer.com","question":"What is PromptLayer?","confidence":0.6},{"answer":"PromptLayer offers a free tier, so you can start without paying. Paid plans start at $0.00. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://www.promptlayer.com/pricing/","question":"Is PromptLayer free?","confidence":0.6},{"answer":"We have confirmed browser-based access to PromptLayer. 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://promptlayer.com","question":"What platforms does PromptLayer support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for PromptLayer, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://promptlayer.com","question":"Can PromptLayer be self-hosted?","confidence":0.6},{"answer":"We have confirmed 8 integrations for PromptLayer, including Pydantic AI, OpenAI, Anthropic, Google GenAI, AWS Bedrock, OpenTelemetry, Vertex AI and Gemini API. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://promptlayer.com","question":"What does PromptLayer integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, HIPAA and GDPR for PromptLayer. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as PromptLayer not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.promptlayer.com/pricing/","question":"What security certifications does PromptLayer have?","confidence":0.6},{"answer":"PromptLayer is available worldwide. Its primary markets are the United States and the EU. The vendor is headquartered in the United States.","source":"https://www.promptlayer.com/pricing/","question":"Where is PromptLayer available?","confidence":0.75}]` | `[{"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 platform that maintains logs of prompts and API requests, enabling debugging and replay of previous completions. Provides version tracking, testing, and monitoring with integrated tracing and evaluation features. | 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 | `{"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,"automatic_failover":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","self_hostable":true,"deployment_model":"managed-SaaS","multi_step_flows":true,"approval_workflow":true,"non_engineer_editing":true,"multi_model_playground":true}` |
| integrations.count | 5 | 3 |
| integrations.list | `[{"name":"Pydantic AI"},{"name":"OpenAI"},{"name":"Anthropic"},{"name":"Google GenAI"},{"name":"AWS Bedrock"},{"name":"OpenTelemetry"},{"name":"Azure OpenAI"},{"name":"Vertex AI"},{"name":"Gemini API","native":true,"direction":"bidirectional"}]` | `[{"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 | `{"hqCountry":"US","primaryMarkets":["US","EU"],"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":"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 (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":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: vioscaleAI. Generated 2026-10-16T21:23:26.888Z. "-" = undocumented, not absent.*