Any Replacement for Assistant API

API
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1

Hi .. Is there a replacement for Assistant APi for GPT-5 and above.. it cannot be that you ditch a useful and functional API set and you have nothing as replacement.

I cannot even rewrite my code, as there is nothing similar?

Any Idea?

Thanks.

2

Hi!

There is a replacement: the new Responses API. The shift from Assistants to Responses is intentional because the mental model is simpler and it reflects feedback on the Assistants API. Instead of running threads, you send input items and get output items back. You also gain newer features that are already integrated, like deep research, MCP, and computer use.

The official migration guide is here:
https://platform.openai.com/docs/assistants/migration

Hope this helps!