# Prompt adherence suddenly deteriorated

**URL:** <https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274>\
**Category:** API General Questions\
**Created:** [September 26, 2025, 2:29pm UTC](https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274 "2025-09-26T14:29:10Z")\
**Posts on this page:** 12\
**Page:** 1

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**Author:** ![joll](https://avatars.discourse-cdn.com/v4/letter/j/9e8a1a/32.png) [@joll](https://photoroom.discourse.group/u/joll)\
**Post date:** [September 26, 2025, 2:29pm UTC](https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274/1 "2025-09-26T14:29:10Z")

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I have been having stable generative output using the studio beta model for the past month. For the same prompt and seed it has been producing consistent results.

But today suddenly the generations changed drastically and keeps generating a sky instead of adhering to the prompt instructions.

For all my prompts it ignores the instruction and paints a cloudy skyline.

 ![1000121108](https://us1.discourse-cdn.com/flex002/uploads/photoroom/original/1X/7cb0ebfc23f9397bf6ccfcc9927d0e58dce5a937.jpeg)

 ![1000121105](https://us1.discourse-cdn.com/flex002/uploads/photoroom/original/1X/05dba6df535b635c984fc7b8cdc83d83e4c8529a.jpeg)

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**Author:** ![eliotandres](https://avatars.discourse-cdn.com/v4/letter/e/ac8455/32.png) [@eliotandres](https://photoroom.discourse.group/u/eliotandres)\
**Post date:** [September 26, 2025, 4:41pm UTC](https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274/2 "2025-09-26T16:41:16Z")

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Could you send the API request as well as the original image? Please do not share the API key however

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<div class="post-metadata">

**Author:** ![eliotandres](https://avatars.discourse-cdn.com/v4/letter/e/ac8455/32.png) [@eliotandres](https://photoroom.discourse.group/u/eliotandres)\
**Post date:** [September 26, 2025, 4:50pm UTC](https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274/3 "2025-09-26T16:50:01Z")

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We’ve improved our behavior when using `background.expandPrompt.mode` “ai.never”, could it be linked?

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<div class="post-metadata">

**Author:** ![joll](https://avatars.discourse-cdn.com/v4/letter/j/9e8a1a/32.png) [@joll](https://photoroom.discourse.group/u/joll)\
**Post date:** [September 27, 2025, 5:11am UTC](https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274/4 "2025-09-27T05:11:34Z")

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Hi Eliot. It could be linked.In my case, I have decided to omit the background.expandPrompt.modefield entirely. That is how I understood the request should be configured to NOT have any expandPrompt behaviour.

In the documentation it says:  
**background.expandPrompt**  
If **ai.auto** , a pre-processing step is applied to expand the prompt into a longer form.  
**auto** and **never** are legacy values that will be removed in the next major version.

There is no mention of **background.expandPrompt.mode** nor any mention of **ai.never**.

But if you changed the default behaviour when no parameter is passed in, then that may have caused the issue.  
I’ve also verified, it seems, that passing no parameter gives the same output as passing “ **ai.never** ”.

But my results has deteriorated.

Below is the full request:

`2025-09-27T05:09:06.473864255Z [Info] 🔍 Complete HTTP Request to PhotoRoom:`  
`2025-09-27T05:09:06.473865880Z`  
`2025-09-27T05:09:06.473866588Z [Info] URL: ``https://image-api.photoroom.com/v2/edit`  
`2025-09-27T05:09:06.473867380Z`  
`2025-09-27T05:09:06.473868088Z [Info] Method: POST`  
`2025-09-27T05:09:06.473868796Z`  
`2025-09-27T05:09:06.473873213Z [Info] Headers: {`  
`2025-09-27T05:09:06.473874005Z “x-api-key”: “[REDACTED]”,`  
`2025-09-27T05:09:06.473874963Z “pr-ai-background-model-version”: “background-studio-beta-2025-03-17”`  
`2025-09-27T05:09:06.473875963Z }`  
`2025-09-27T05:09:06.473876671Z`  
`2025-09-27T05:09:06.473891046Z [Info] Form Data Parameters: {`  
`2025-09-27T05:09:06.473902255Z “imageFile”: “[File: IMG-20250804-WA0000.jpg]”,`  
`2025-09-27T05:09:06.473904171Z “export.format”: “jpeg”,`  
`2025-09-27T05:09:06.473905088Z “background.color”: “white”,`  
`2025-09-27T05:09:06.473905963Z “removeBackground”: “true”,`  
`2025-09-27T05:09:06.473906880Z “scaling”: “fit”,`  
`2025-09-27T05:09:06.473908005Z “shadow.mode”: “ai.soft”,`  
`2025-09-27T05:09:06.473908796Z “export.dpi”: “300”,`  
`2025-09-27T05:09:06.473909546Z “padding”: “0.075”,`  
`2025-09-27T05:09:06.473959588Z “margin”: “0.05”,`  
`2025-09-27T05:09:06.473965421Z “outputSize”: “1200x800”,`  
`2025-09-27T05:09:06.473966296Z “horizontalAlignment”: “center”,`  
`2025-09-27T05:09:06.473967171Z “verticalAlignment”: “center”,`  
`2025-09-27T05:09:06.473968796Z “background.prompt”: “A high-end, spacious car photography studio. The floor is a reflective, high-gloss gray epoxy. The background is a large, clean, dark gray cyclorama wall. The lighting is bright and diffused, On the back wall, to the side, there is a blank space for a logo. No car in the shot. High resolution, photorealistic.”,`  
`2025-09-27T05:09:06.473971713Z “background.seed”: “55994449”,`  
`2025-09-27T05:09:06.473972546Z “segmentation.prompt”: “Segment the main salient car in the image”`  
`2025-09-27T05:09:06.473973463Z }`  
`2025-09-27T05:09:06.473974171Z`  
`2025-09-27T05:09:11.431388674Z [Info] 📥 PhotoRoom Response Status: 200`

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<div class="post-metadata">

**Author:** ![joll](https://avatars.discourse-cdn.com/v4/letter/j/9e8a1a/32.png) [@joll](https://photoroom.discourse.group/u/joll)\
**Post date:** [September 27, 2025, 5:34am UTC](https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274/5 "2025-09-27T05:34:42Z")

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This is how it started looking like yesterday:

 ![photoroom-result-1758951158226](https://us1.discourse-cdn.com/flex002/uploads/photoroom/original/1X/33f3bb00dc302fc62ba44a386a3eac142fb5331c.jpeg)

This is the scene i consistently got with the same prompt previously:

 ![photoroom-result-1758603387197](https://us1.discourse-cdn.com/flex002/uploads/photoroom/original/1X/d4a69378ae1995b672e0f8bab68e3539f0050349.webp)

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<div class="post-metadata">

**Author:** ![joll](https://avatars.discourse-cdn.com/v4/letter/j/9e8a1a/32.png) [@joll](https://photoroom.discourse.group/u/joll)\
**Post date:** [September 27, 2025, 5:47am UTC](https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274/7 "2025-09-27T05:47:29Z")

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Original images:

 ![car-2](https://us1.discourse-cdn.com/flex002/uploads/photoroom/original/1X/f7e5a385e846cf8093932e996436954f5d79a0a0.jpeg)

 ![IMG-20250804-WA0000](https://us1.discourse-cdn.com/flex002/uploads/photoroom/original/1X/82b36292f27b02d996ca627f0dc84b15c9855de5.jpeg)

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<div class="post-metadata">

**Author:** ![eliotandres](https://avatars.discourse-cdn.com/v4/letter/e/ac8455/32.png) [@eliotandres](https://photoroom.discourse.group/u/eliotandres)\
**Post date:** [September 29, 2025, 8:42am UTC](https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274/8 "2025-09-29T08:42:04Z")

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Thank you for the details, we’re investigating

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<div class="post-metadata">

**Author:** ![joll](https://avatars.discourse-cdn.com/v4/letter/j/9e8a1a/32.png) [@joll](https://photoroom.discourse.group/u/joll)\
**Post date:** [October 1, 2025, 5:34am UTC](https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274/9 "2025-10-01T05:34:23Z")

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Great, much appreciated. We were just getting ready to launch our product when the deterioration happened and currently it’s blocking our release.

Is there any ETA on when it can be fixed? Or other advice that can improve the results and ensure we can release according to schedule?

All the best

J

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<div class="post-metadata">

**Author:** ![Photoroom](https://sea2.discourse-cdn.com/flex002/user_avatar/photoroom.discourse.group/photoroom/32/6_2.png) [@Photoroom](https://photoroom.discourse.group/u/Photoroom)\
**Post date:** [October 1, 2025, 11:24am UTC](https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274/10 "2025-10-01T11:24:04Z")

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> [@joll](#):
>
> Great, much appreciated. We were just getting ready to launch our product when the deterioration happened and currently it’s blocking our release.
> 
> Is there any ETA on when it can be fixed? Or other advice that can improve the results and ensure we can release according to schedule?

Hi @joll ,

Our machine learning team is looking into this to give us a better determination on when we can expect a fix in the coming weeks. Once we hear more we will follow up!

Best,

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<div class="post-metadata">

**Author:** ![Hanhokim](https://avatars.discourse-cdn.com/v4/letter/h/edb3f5/32.png) [@Hanhokim](https://photoroom.discourse.group/u/Hanhokim)\
**Post date:** [October 2, 2025, 3:22am UTC](https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274/11 "2025-10-02T03:22:12Z")

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Hey **[eliotandres](https://photoroom.discourse.group/u/eliotandres),** please check [this ticket](https://photoroom.discourse.group/t/the-models-output-quality-has-deteriorated-badly/279) as well. I can give you more cases if you need.

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**Author:** ![eden](https://avatars.discourse-cdn.com/v4/letter/e/5f9b8f/32.png) [@eden](https://photoroom.discourse.group/u/eden)\
**Post date:** [October 2, 2025, 10:58am UTC](https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274/12 "2025-10-02T10:58:10Z")

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Similar quality drop here. I use the `ai.never` and studio model

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<div class="post-metadata">

**Author:** ![joll](https://avatars.discourse-cdn.com/v4/letter/j/9e8a1a/32.png) [@joll](https://photoroom.discourse.group/u/joll)\
**Post date:** [October 6, 2025, 3:49am UTC](https://photoroom.discourse.group/t/prompt-adherence-suddenly-deteriorated/274/13 "2025-10-06T03:49:41Z")

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Good examples Hanhokim and Eden.

Thanks for sharing. Given the severity of the issues along with multiple well written and similar reports, Photoroom should have access to all the data and move to swiftly resolve the issue.
