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Model comparisons

Qwen Image 3.0 Pro vs Seedream 5.0 Flash

Qwen Image 3.0 Pro or Seedream 5.0 Flash, tier by tier: matched prices, request fields, limits and the content policy measured on each.

Qwen Image 3.0 Pro

Qwen Image 3.0 Pro image editing edits or merges one to three reference images under a written instruction, including retyping a cover line without redrawing the picture. Output is one image at 1k or 2k in eight aspect ratios.

View model details →View sample outputs →

Seedream 5.0 Flash

Seedream 5.0 Flash image editing takes one to ten reference images (JPEG, PNG or WebP, up to 30 MB each) and returns one image. Revise a single photo or combine a face, garment and place; choose from fifteen aspect ratios at 1K to 2K.

View model details →View sample outputs →

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The short answer

Start with the input you have, the result you want and your budget. These are the differences that affect that choice.

  • The two bill on different tiers, so there is no like-for-like row: Qwen Image 3.0 Pro starts at $0.04 / output images and Seedream 5.0 Flash at $0.029 / output images.
  • Both are listed as Uncensored. Compare the examples and content-test details on each model page for the scenes you want to create.

Compare the published examples, then try the same input on both models with matching settings.

Test scores side by side

The Spicy Index and Freedom Score for both models, from the same daily calculation as the leaderboards.

Test scores side by side
MeasureQwen Image 3.0 ProSeedream 5.0 Flash
Spicy Index78.873.9
Freedom Score98.062.2
EvidenceTested 6 of 6 probe types · 35 runsTested 6 of 6 probe types · 26 runs
Range if the rest pass98.0–100.062.2–94.2
Price$0.04 per image$0.029 per image
ReviewsRead the Qwen Image 3.0 Pro reviewRead the Seedream 5.0 Flash review
See both on the leaderboard →

Current price

Price at the same setting

A start price answers a different question than the one you have. These are the tiers both models publish, matched setting for setting, in US dollars per billed unit with no conversion step in between.

These two bill on different tiers, so there is no row to line up. Each one's own published tiers are listed here instead.

Qwen Image 3.0 Pro: 1K $0.04 / output images · 2K $0.075 / output images

Seedream 5.0 Flash: $0.029 / output images

What one ordinary job costs

  • Qwen Image 3.0 Pro: $7.5 for one hundred images at 2K.
  • Seedream 5.0 Flash: $2.9 for one hundred images.

Arithmetic on the published rates at each model's own default setting, not a quote. The console prices your actual settings before a request is accepted.

About this comparison

Controls and limits

Every row here is read from the JSON Schema the endpoint validates against, so it matches what the API will really accept rather than a feature list written by hand.

Swipe horizontally to compare all fields.

Qwen Image 3.0 Pro vs Seedream 5.0 Flash
Controls and limitsQwen Image 3.0 ProSeedream 5.0 Flash
Supported tasksimage-to-imageimage-to-image
Resolution tiers1K · 2K1K · 1.5k · 2K
Aspect ratios1:1 · 16:9 · 9:16 · 4:3 · 3:4 · 3:2 · 2:3 · 21:9auto · 1:1 · 4:3 · 3:4 · 16:9 · 9:16 · 3:2 · 2:3 · 4:5 · 5:4 · 21:9 · 9:21 · 2:1 · 1:2 · 3:1 · 1:3
Reference materialUp to 3 filesUp to 10 files
High-resolution tierYesYes
SeedYesNo
Negative promptYesNo
ExecutionSubmit, then poll or take the callbackSubmit, then poll or take the callback
Request timeout30 minutes30 minutes
AvailabilityLiveLive

Do low-filter models allow every request?

Content policy, side by side

Two separate facts sit behind these labels. The first is what we do, which is nothing: no platform content filter, and no maturity flag to set on a request. The second is what each model does on its own, and that is the only part that varies between these two.

Qwen Image 3.0 Pro

Uncensored

This model declares no content filter. SpicyAPI forwards the request without adding a platform content scan; legal and consent duties remain with the customer.

Seedream 5.0 Flash

Uncensored

This model declares no content filter. SpicyAPI forwards the request without adding a platform content scan; legal and consent duties remain with the customer.

Usage note Unfiltered content needs no separate switch or endpoint. Do not submit material involving minors, non-consensual intimate imagery, or deceptive impersonation of real people. This statement is a usage boundary, not a claim that every request is automatically screened.

Use these content labels to shortlist models, then open each model page for available examples and content-test details.

The label never changes your obligations. Age, consent, real-person likeness and the law where you operate stay with you, and SpicyAPI does not inspect each request.

Can I swap the model ID without changing the request body?

Request body, field by field

The task lifecycle is shared; the body is not. Each endpoint publishes its own JSON Schema and the API validates against that, so this is the list to reconcile before a switch.

  • 4 fields appear in both request bodies under the same names. aspect_ratio, image_urls, prompt, resolution
  • Only Qwen Image 3.0 Pro accepts: enable_prompt_expansion, negative_prompt, num_outputs, seed.
  • Only Seedream 5.0 Flash accepts: background, output_format.
  • Qwen Image 3.0 Pro requires image_urls, prompt.
  • Seedream 5.0 Flash requires image_urls, prompt.
  • Both reject unknown fields outright, so a parameter left over from the other model comes back as a validation error instead of being quietly ignored.

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Moving from one to the other

The model identifiers are alibaba/qwen-image-3.0-pro/edit and bytedance/seedream-5.0-flash/edit, and both go in the same field of the same request.

Both run the same way: submit the task, then poll it or take the callback. Queueing and retry logic carry over unchanged.

Both use the same submit-and-track flow, but their required inputs may differ. Check each model page before switching.

One key, one balance, one set of spend caps. Both bill to the same account in US dollars, and the per-key daily, monthly and lifetime limits apply to whichever one you call.

Questions developers ask

Which is cheaper, Qwen Image 3.0 Pro or Seedream 5.0 Flash?

Which is cheaper, Qwen Image 3.0 Pro or Seedream 5.0 Flash?

The two bill on different tiers, so there is no like-for-like row: Qwen Image 3.0 Pro starts at $0.04 / output images and Seedream 5.0 Flash at $0.029 / output images. Prices may change; check the estimate shown for your actual settings before submitting.

How long can a single request run?

Qwen Image 3.0 Pro allows 30 minutes per task and Seedream 5.0 Flash allows 30. Those are ceilings rather than typical times — most requests finish far sooner — but they are what your own client timeout has to survive.