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Prompt Assistant is a chat-first workspace for running and iterating on prompts you created in Prompt Builder. Instead of opening ChatGPT separately, you can take a prompt from Generator/Optimizer/My Prompts and try it directly here with a fast assistant model (for example GPT‑4.1 Nano).

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What it’s for

  • Run a generated/optimized prompt and see what it produces
  • Iterate on wording, tone, constraints, and output format
  • Save the best version back to My Prompts

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What it’s not for

Prompt Assistant isn’t intended for completely unrelated/general chat. If you want help, share the prompt you’re testing (or your goal) and the output format you want.

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Choose a model

Select the assistant model you want to run the prompt with. If you’re unsure, start with the default and switch models only when you want a different style or speed.

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How it works

1

Start with a prompt

Paste a prompt, or insert one from My Prompts.Common sources:
  • Prompt Generator output
  • Prompt Optimizer output (via Run)
  • A saved prompt from Prompt Library
2

Pick an assistant model

Choose which model should run the prompt (default model is configured in the app).
3

Run + iterate

Send the prompt and evaluate the response. Iterate with follow-ups like:
  • “Keep the same structure, but make it shorter”
  • “Return output as JSON with keys …”
  • “Ask clarifying questions first”
  • “Add 3 examples and 3 edge cases”
4

Save to My Prompts

Use Save to store the exact version you want in My Prompts so you can reuse it later.

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Core concepts

  • Prompt Generator: start from a rough idea and generate a first draft prompt, then refine it in chat.
  • Prompt Optimizer: start from an existing prompt and upgrade it into a clearer, better-structured version (with history).
Use Assistant anytime you want to iterate on wording, tone, constraints, or format—regardless of where the prompt came from.
The model selector controls which assistant runs your prompt.
Use My Prompts in the composer to insert a saved prompt and continue iterating.
Use Pin to keep key prompts and conversations easy to find.
Using Run in Prompt Optimizer opens a new Assistant chat seeded with the optimized prompt.

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Tips for better chats

  • Tell the assistant what success looks like (format, length, constraints).
  • Include examples of “good” vs “bad” outputs if you have them.
  • If you want the assistant to ask questions first, say so explicitly.

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Next steps

Prompt Library

Save, pin, and run prompts you refine in Assistant.

Prompt Generator

Start from an idea and refine it with chat.

Prompt Optimizer

Upgrade an existing prompt and then run it in Assistant.