Cognition Labs · Rate Limits

Cognition Labs Rate Limits

Cognition does not publish fixed numeric per-minute or per-day request-rate limits for the Devin API (v1, v2, or v3). Instead, usage is governed by Agent Compute Unit (ACU) consumption against a plan's quota or an Enterprise order-form allowance: Devin explicitly documents "no concurrent session limits," so the practical ceiling on how much work can run in parallel is a customer's own ACU budget and Enterprise-configured per-organization consumption caps rather than a request-throttling gate. Structured output schemas are capped at 64KB and session tags at 50 entries, which are the only numeric ceilings found in the documented request payloads.

Cognition Labs Rate Limits is the machine-readable rate-limit profile for Cognition Labs on the APIs.io network, conforming to the API Commons Rate Limits specification.

It captures 6 rate-limit definitions, measuring sessions, acu, tags, bytes, and requests.

The profile also includes 3 backoff/retry policies defined and response codes documented for throttled.

Tagged areas include AI, AI Agent, Devin, Rate Limiting, and Quotas.

6 Limits Throttle: not documented
AIAI AgentDevinRate LimitingQuotas

Limits

Concurrent Sessions account
sessions
none documented
Devin's own docs state there are no concurrent session limits; work can be split across multiple simultaneous sessions.
Plan ACU Quota account
acu
per plan (daily and/or weekly, see Plans)
Pro and Teams full seats have daily and weekly allowances; Max has a weekly-only allowance with no daily cap.
Enterprise Organization Consumption Cap organization
acu
admin-configured
Enterprise admins can set a per-organization ACU cap; when reached, all Devin activity in that organization stops until an admin intervenes.
Session Tags request
tags
50
Maximum of 50 tags accepted on session create and on the update-tags endpoint.
Structured Output Schema Size request
bytes
65536
JSON Schema (Draft 7) passed as structured_output_schema on session create is capped at 64KB.
API Request Rate account
requests
not published
No numeric per-minute/per-day request rate limit or 429 policy is documented for v1, v2, or v3 endpoints.

Policies

ACU-Gated Rather Than Request-Gated
The primary throttle on Devin usage is ACU quota/consumption-cap exhaustion, not HTTP request-rate limiting.
Sleep on Inactivity
A session enters sleep mode after roughly 0.1 ACU of inactivity and consumes zero units while asleep; sending a message wakes it.
Validation Before Throttling
Documented failure modes for these endpoints are 422 validation errors on malformed payloads, not 429 throttling responses.

Sources

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