Limits

All limits apply per version unless noted otherwise.

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Per-run limits

Limit	Default	Notes
Max memory	512 MB	Fixed per execution; not configurable
Max timeout	300 seconds	Fixed per execution; exceeding it returns HTTP 408
CPU	2.0 cores	Fixed per execution

When a run exceeds the timeout limit, the request returns a 408 error and the handler is killed. Memory exhaustion fails the run.

Python 3.13 functions set to Compute Type: GPU get higher defaults - 8192 MB max memory and a 600 second max timeout - to cover GPU cold-start cost. See GPU compute.

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Code and files

Limit	Value
Main entry file	Must be named cortexone_function.{py,js,lua}
Supported Python file types	.py, .txt
Max file upload size (digital assets)	500 MB

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Versions

Limit	Value
Version string format	Semantic versioning - e.g. 1.0.0, 2.3.1
Version immutability	Published versions cannot be edited - create a new version to update

When you publish a new version, you choose how to bump the number:

• Major (2.0.0) - breaking changes to the input/output contract or behavior that callers must adapt to.
• Minor (1.1.0) - backward-compatible additions, like a new optional field or capability.
• Patch (1.0.1) - backward-compatible fixes that don’t change the contract.

Caution

Once a version is published as public, its code, runtime, and configuration are locked. You cannot edit a published version.

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API keys

Limit	Value
Scope	Organization-wide - any key can invoke any tool your org has access to
Visibility	Shown once at creation - cannot be retrieved after

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Run Balance

Limit	Value
Minimum balance for execution	Must be positive - execution blocked at $0.00 (HTTP 402)

See Run Balance for the full breakdown.

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Pricing

Limit	Value
Maximum per-run price	$0.25 - the highest price a publisher can set per run on a paid tool

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Digital assets

Limit	Value
Max file upload size	500 MB
Asset types	File or Folder upload or S3 bucket connection
Visibility	Public or Private per asset

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Organizations and members

Limit	Value
Owners per organization	1 (the creator)
Invitation expiry	7 days
Invitable roles	Member and Admin only - Owner cannot be invited

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Tool metadata

Field	Limit
Short description	300 characters
Tags	Freeform
Sectors / categories	Selected from predefined list