Vellum
A personalized AI assistant with persistent memory that integrates across your digital life and devices.
- Also known as
- vellum
Available worldwide · Popular in: US
What is Vellum?
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.
Vellum pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
Free tier with credits, paid plans from $30/mo
Free
FreeFree credits to start
- Free starter credits
- Multi-platform access
- Memory and context
Paid
Larger machine, more storage, bundled credits
- Larger machine
- More storage
- Bundled credits
What Vellum does
The capabilities that matter for prompt management, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Versioning model
- -
- 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
- Pricing model
- Usage/seat based saas
Platform & deployment
Independently observed- CLI
- iOS
- macOS
- Web
- Cloud / SaaS
Integrations (11)
Independently observed- Gmail
- Google Calendar
- Slack
- Telegram
- Web browsing
- Computer control
- Phone calls
- Image generation
- Coding
- App building
- Task management
Vellum alternatives
Other prompt management we track, ranked by the same independent score.
- PromptHubA collaborative platform for managing, testing, and deploying AI prompts across teamslow · 26%
- Orq.aiA unified AI gateway routing requests across 500+ models from multiple providers with built-in observability and governancemedium · 55%
- PromptLayerA collaboration layer enabling AI engineering teams to manage and improve prompts without modifying codemedium · 54%
- LatitudeAutomatically detect and repair AI agent failures in productionmedium · 54%
- AgentaPlatform for building, testing, and deploying AI agents with team collaboration and iterative refinementlow · 43%
- PromptmetheusIDE for systematically engineering and testing LLM prompts with team collaborationmedium · 66%
Compare Vellum
Side by side against other prompt management, attribute by attribute, with a source on every value.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Vellum, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Pricing transparency | 100 | 0.08 | 8.4 | ✓ |
| Capabilities | 58 | 0.05 | 2.8 | ✓ |
| Price level | 50 | 0.05 | 2.6 | ✓ |
| Integrations | 31 | 0.04 | 1.3 | ✓ |
| Reliability | 0 | 0.07 | 0.0 | - |
| Security posture | 0 | 0.07 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Pricing model: usage/seat-based-saas · Deployment model: managed-SaaS · Multi step flows: Yes · Approval workflow: Yes · Non engineer editing: Yes | mediumsource · 2026-08-21 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 11 | mediumsource · 2026-08-21 · 60% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | mediumsource · 2026-08-21 · 50% |