codex - 💡(How to fix) Fix Agent image-gen tool: no reference image input / no way to reproduce or iterate [1 participants]

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openai/codex#19864Fetched 2026-04-28 06:35:55
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What version of Codex CLI is running?

N/A

What subscription do you have?

N/A

Which model were you using?

gpt-4o-mini? (image gen agent)

What platform is your computer?

N/A

What terminal emulator and version are you using (if applicable)?

N/A

What issue are you seeing?

Problem

In the Codex Agent image generation tool there is no way to provide reference images or reuse a seed. That means the output is not reproducible and it is very hard to iterate incrementally on an image—every run starts from scratch.

Without references, workflows like maintaining style, composition, layout, or branding become extremely painful.

What steps can reproduce the bug?

  1. Open Codex Agents image generation tool.
  2. Try to supply a reference image (e.g., upload or paste a URL) or reuse a seed.
  3. There is no UI to do this, so results cannot be replicated and iteration is frustrating.

What is the expected behavior?

Provide a reference image input (upload/paste/link) and allow seed reuse so an image can be reproduced and iterated incrementally.

Additional information

This is primarily a feature request for Codex Agents image generation rather than a CLI bug, but it currently makes iterative image design workflows extremely slow.

extent analysis

TL;DR

The issue can be mitigated by requesting a feature enhancement to the Codex Agent image generation tool to allow reference image input and seed reuse.

Guidance

  • The current limitation in the Codex Agent image generation tool is the inability to provide reference images or reuse seeds, making it difficult to reproduce and iterate on images.
  • To verify the issue, attempt to upload or paste a reference image URL in the tool, which should currently not be possible.
  • Consider reaching out to the development team to request the feature enhancement, providing use cases such as maintaining style, composition, layout, or branding in image generation workflows.
  • In the meantime, explore alternative image generation tools that support reference image input and seed reuse for iterative design workflows.

Example

No code snippet is applicable in this case, as the issue is related to a feature request rather than a code-level bug.

Notes

The provided information does not include technical details about the Codex Agent image generation tool's architecture or implementation, so a direct code-level solution cannot be suggested.

Recommendation

Apply workaround: Request a feature enhancement to the Codex Agent image generation tool to support reference image input and seed reuse, as this would directly address the reported issue and improve the tool's usability for iterative image design workflows.

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