Devin vs Vellum — Pricing, Plans, and Verified Costs (2026)
Devin starts at $20/mo. Vellum starts at $30/mo. Devin is $10/mo cheaper on the entry tier than Vellum.
Autonomous AI software engineer from Cognition Labs. Runs as a fully autonomous agent that can plan, code, test, and deploy multi-file projects with minimal supervision. Pricing: Team $500/mo per seat (min 5 seats), Enterprise custom. Positioned as the most autonomous coding agent on the market — marketed as replacing junior engineer work rather than augmenting a senior developer's IDE. High price reflects the market positioning.
Personal AI assistant that runs your tasks in a hosted environment. Plans priced by 'computer size' (small/medium/large) and included storage (10/30/60 GB), with each tier bundling usage. Higher tiers add an Assistant email and dedicated subdomain. Custom Plan builds a bespoke fit for heavier workflows. Vellum pivoted to this consumer-friendly assistant product in 2026 after operating as an LLMOps platform earlier.
All plans compared
| Tier role | Plan | Devin monthly | Devin annual | Vellum monthly | Vellum annual |
|---|---|---|---|---|---|
| Free / starter | Free / Start Free | Free | Free | Free | Free |
| Entry paid | Pro / Mighty | $20 | $20 | $30 | $30 |
| Mid tier | — / Super | — | — | $100 | $100 |
| Pro / power | Max / Ultra | $200 | $200 | $200 | $200 |
| Teams | Teams / — | Custom | Custom | — | — |
| Enterprise | Enterprise / Custom | Custom | Custom | Custom | Custom |
Tier names differ across vendors. Rows are aligned by tier role, not name. Full tier structures on each tool's page.
What each is best for
Devin is worth it if… engineering leaders who want to test whether an autonomous agent can meaningfully offload junior-engineer tasks (backlog cleanup, bug triage, doc generation). At $500/mo/seat with a 5-seat minimum ($2,500/mo entry), Devin is priced for procurement conversations, not solo developers.
Vellum is worth it if… individuals who want a persistent AI assistant that can execute multi-step tasks, keep files in a hosted workspace, and be reached via a custom email or subdomain. Mighty $30 suits casual daily use; Super $100 adds email/subdomain features for prosumers; Ultra $200 targets power users who lean on the assistant heavily.
Bottom line: Choose based on how you want to pay — Devin is per seat, Vellum is tiered.
Choose Devin over Vellum if…
Choose Devin if…
- You want fixed-price predictability (per seat, from $20/mo).
- You match the profile Devin is built for: engineering leaders who want to test whether an autonomous agent can meaningfully offload junior-engineer tasks (backlog cleanup, bug triage, doc generation).
- You need a general-purpose developer & infrastructure option rather than a vertical-specific one.
Choose Vellum if…
- You want fixed-price predictability (tiered, from $30/mo).
- You match the profile Vellum is built for: individuals who want a persistent AI assistant that can execute multi-step tasks, keep files in a hosted workspace, and be reached via a custom email or subdomain.
- You need a general-purpose developer & infrastructure option rather than a vertical-specific one.
At a glance
| Devin | Vellum | |
|---|---|---|
| Free plan | Yes | Yes |
| Entry price | $20/mo | $30/mo |
| Enterprise available | Yes | Yes |
| Pricing model | Per Seat | Tiered |
| Last verified | September 20, 2026 | September 20, 2026 |
| Full pricing | View full pricing | View full pricing |
Pricing last verified September 20, 2026. Tracked daily.