OpenAI's agents speak OpenAI.
theloop speaks everyone.

OpenAI's Responses API, and its newer Agents API in beta, let OpenAI run the agent for you: on its servers, with its models, and by default it keeps the conversation too. theloop is a service you run yourself. Any provider, chosen per request, and nothing is stored.

In plain words.

OpenAI

A hotel concierge.

Brilliant, with tools on hand: web search, file search, a code interpreter. But it's their hotel: their models, their building, and they keep the guest book.

theloop

A freelance runner.

Takes the job with whichever provider's key you hand over, runs the loop, brings back the answer and the receipt. Keeps no notes.

Side by side.

QuestionOpenAItheloop
What is it? OpenAI's hosted APIs: Responses, plus the Agents API in beta An open-source service you host. Run it with Docker or Node
Models OpenAI's Anthropic, OpenAI, DeepSeek, GLM, GigaChat, MiniMax or anything OpenAI-compatible, picked per request
Conversation storage Responses are stored by default for 30 days and chained by previous_response_id. The Agents API works in sessions Nothing is stored. History lives in your database
Your own tools Function calls come back to your code, and your code runs them theloop calls your HTTPS endpoints itself
Built-in tools Web search, file search, code interpreter and more OpenAI wins Not yet. Provider-native tools are a roadmap proposal
Risky actions Your code decides whether to run each function Write tools answer deferred, and your system approves
Where it runs OpenAI's cloud Your servers
Price Pay OpenAI per token Free, Apache 2.0. You pay the providers directly

Which one is yours?

Pick OpenAI if…

  • You're all-in on OpenAI models
  • You want hosted web search, file search or a code interpreter without building them
  • You'd rather not run a single server

Pick theloop if…

  • You want to switch providers per customer, or per request
  • Conversations shouldn't sit in a vendor's storage
  • You need providers like GigaChat, GLM or DeepSeek next to OpenAI
  • Finance wants usage per attempt, failed ones included

Not either-or. OpenAI is one of theloop's providers. Same models, but the loop and the history stay with you.