Custom assistants
Create reusable assistants with dedicated instructions, tool access, and knowledge files instead of rebuilding the same setup in each conversation.
What custom assistants are best for
Custom assistants help you standardize repeated work. They are useful when you want a named assistant with durable instructions, selected tools, and attached knowledge files.
Strong use cases
- a research assistant that always uses a specific style and sources
- a support assistant trained on internal documentation
- a creative assistant with a fixed tone and workflow
- an organization-approved assistant that multiple members should share
Typical setup ingredients
- a clear purpose
- instructions that define tone and boundaries
- the right model or model category
- tool access that matches the use case
- knowledge files when answers should rely on a stable document set
md
Purpose: review customer interview notes and extract product themes
Style: concise, evidence-based, no invented quotes
Tools: file knowledge, web search when explicitly requested
Choose the right owner
- personal assistants fit one person’s workflow
- organization assistants fit shared standards and repeatable team processes
Keep instructions durable
Avoid putting temporary project details in a reusable assistant. If the context changes every week, that material probably belongs in a project instead.