Adobe vs Vellum
Vellum scores higher on the AgentReady, 88/100 against 51/100. They differ on 18 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.
What each one is
Adobe. Adobe products and services empower developers to create memorable digital experiences through developer creativity
Vellum. A personal AI assistant that lives in the secure Vellum Cloud, has its own identity, and actually does things in the world.
Where Adobe is ahead
Adobe passes agent compatibility verified, and Vellum does not. That is operate, whether an agent can run against it in production and recover when a call fails.
Where Vellum is ahead
Vellum passes public docs discoverable and llms.txt published, and Adobe does not. That is discover, whether an agent can find the product at all without being told it exists.
It also holds understand: openapi / spec quality, pricing understandable, request examples provided, response examples provided and errors and status codes documented. Adobe misses those.
And on adopt, self-service signup, no mandatory sales call, agent-compatible signup flow, programmatic credential creation, free trial or free allowance, fast time to first request and copyable quickstart. Adobe misses those.
Finally, on operate, structured, predictable output, machine-readable errors and retry behavior documented. Adobe misses those.
What neither does
Both fail authentication documented, limits / constraints documented, idempotency support, rate-limit behavior predictable. If your agent needs any of those, you will be building it yourself either way.
Score, pillar by pillar
The AgentReady splits into four pillars, scored separately, because a product can be easy to find and still impossible to adopt.
Discover. Vellum leads 100 to 80. Adobe misses public docs discoverable, llms.txt published; Vellum misses nothing.
Understand. Vellum leads 85 to 31. Adobe misses openapi / spec quality, authentication documented, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Vellum misses authentication documented, limits / constraints documented.
Adopt is whether an agent can get a key and make its first successful call without a human in the loop. Vellum leads 100 to 40. Adobe misses self-service signup, no mandatory sales call, agent-compatible signup flow, programmatic credential creation, free trial or free allowance, fast time to first request, copyable quickstart; Vellum misses nothing.
Operate. Vellum leads 67 to 53. Adobe misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable; Vellum misses idempotency support, rate-limit behavior predictable, agent compatibility verified.
Pricing
Adobe does not publish a machine-readable starting price. Vellum starts at $30/mo and has a free tier.
| Adobe plans | Vellum plans |
|---|---|
| - | Mighty $30/month |
| - | Super $100/month |
| - | Ultra $200/month |
| - | Custom Plan Custom |
Signal by signal
| Signal | Adobe | Vellum |
|---|---|---|
| AgentReady | 51 | 88 |
| Discovery | 80 | 100 |
| Understanding | 31 | 85 |
| Adoption | 40 | 100 |
| Operability | 53 | 67 |
| Public API | Yes | Yes |
| MCP server | Yes | Yes |
| OpenAPI spec | Yes | Yes |
| CLI | Yes | Yes |
| llms.txt | Unknown | Yes |
| Self-serve signup | Unknown | Yes |
| Free tier | Unknown | Yes |
Which to pick
Vellum clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: Adobe and Vellum. Alternatives to each: Adobe, Vellum.
An agent can fetch this as data: POST /v1/compare {"slugs": ["adobe", "vellum"]}