Custom GPTs retire on 11 December. Here is where yours can go
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Interweave OS vs ChatGPT (Business and Work)

OpenAI's ChatGPT for work, with ChatGPT Work for longer tasks, shared projects and workspace agents. Interweave OS is a shared AI agent platform for organisations: an agent in every chat, many people in a chat, any model, on your organisation's own server. Here is how they compare, and who each one suits.

FeatureInterweave OSCE SolutionsChatGPT (Business and Work)OpenAI
AI modelsClaude, GPT, Gemini, Grok and more: any model your organisation connectsOpenAI only
Change model mid-conversationYes, the new model gets the whole conversationWithin OpenAI models only
Several people working with the same agentsYes: group chats and team chats where everyone works with the same agentsShared projects and workspace agents; no group chats since 9 July 2026
Each person keeps their own accessYes: every message is checked against the sender's rights, by the platformEveryone in a shared project sees every chat in it
Where it runsYour organisation's own serverHosted
Setting it upSign in with a browser; an admin setup guide for the organisationSign up; admin setup for Business
Where you talk to itWeb, phone browser, phone calls in and out, Telegram, Slack, Discord and Microsoft TeamsWeb, desktop, mobile; Slack through workspace agents
Runs on a scheduleYes: schedules and agents that check in, run as youYes: scheduled tasks
Asks before acting outsideYes: emails, invitations and public apps wait for the person who askedNot stated
PricePrivate beta, no public pricing yetBusiness from 2 users; Enterprise by quote

Checked 14 November 2026 against each maker's own pages. Products change often; follow the sources below for the latest.

Interweave OS

A shared AI agent platform for organisations: an agent in every chat, many people in a chat, any model, on your organisation's own server.

Where it shines

  • Every message is checked against the person who sent it, so a shared agent never reveals one person's private chats to another
  • Any model your organisation connects, from several labs, switchable mid-chat
  • Subagents in any model family, Council reviews by other AI labs, schedules and agents that check in
  • No command line for anyone using it, and nothing goes outside the organisation until the person who asked approves it

Good to know

  • In private beta: places are limited and there is no public pricing yet. Join the waitlist

Best for: Teams and organisations that want AI agents many people can use safely, with any model.

ChatGPT (Business and Work)

OpenAI's ChatGPT for work, with ChatGPT Work for longer tasks, shared projects and workspace agents.

Where it shines

  • Familiar to most people
  • ChatGPT Work for longer tasks across apps and files
  • Workspace agents shared across a team and in Slack

Good to know

  • Group chats were retired on 9 July 2026. Source
  • Custom GPTs retire on 11 December 2026. Source
  • In a shared project, everyone sees every chat in it. Source

Best for: Organisations happy to use OpenAI's models only.

The verdict

Choose ChatGPT (Business and Work) if you are one of these: organisations happy to use OpenAI's models only. Choose Interweave OS if you want AI agents a whole team can use, each person keeping their own access, with any model for each job.

Join the Interweave OS private beta Compare everything

Questions

Can several people share one ChatGPT (Business and Work) agent?

Shared projects and workspace agents; no group chats since 9 July 2026. Each person keeping their own access: everyone in a shared project sees every chat in it.

Which AI models does ChatGPT (Business and Work) use?

OpenAI only.

Sources

Be one of the first teams in

Interweave OS is in private beta. Join the waitlist and we will be in touch as places open, with practical AI tips in the meantime.