BytePlus lists May 13, 2026 as the retirement date for bytedance-seedream-3-0-t2i-250415 and recommends Seedream 5.0 Lite. Seedream 3.0 is ByteDance Seed's Chinese-English text-to-image model. Deprecations, Report
What are the key facts about Seedream 3.0?
| Fact | Verified detail |
|---|---|
| Developer | ByteDance Seed. Technical report |
| Released | Deployed in early April 2025; technical report published April 15, 2025. Report, Publication |
| Type | Chinese-English text-to-image generation. Technical report |
| Size or parameters | Exact total not published in the cited report. Technical report |
| License and access | Hosted service; no open weights supplied with the report or documented API. Report, Model documentation |
| Where it runs | Hosted infrastructure; the listed BytePlus legacy endpoint has a May 13, 2026 deactivation date. Deprecations |
What did Seedream 3.0 support for bilingual image design?
Typography is a major focus of the technical report. ByteDance describes work on small characters, layout, and Chinese-English image text, alongside general image generation. Technical report
For a design evaluation, choose a poster brief with text you have already approved. Keep the headline, supporting line, and any required labels in a separate document so you can compare generated lettering with the intended wording.
Judge content and layout independently. First check whether every required word appears correctly. Then inspect whether the arrangement supports the hierarchy you requested.
A useful original exercise is a fictional flower-shop poster. Supply the shop name and a short opening message, then ask for a clear headline, one central bouquet, and space around the text.
For bilingual material, obtain approved wording in both languages before generation. Seedream 3.0's technical report describes Chinese-English image text. Technical report
Seedream 3.0 supports native output up to 2K, according to its technical report. Use that as a description of the model's published scope when reviewing archived images. Technical report
For visual evaluation, inspect the output at the size in which it will be used. Record missing letters, incorrect line breaks, and distracting background elements separately from your preference for the overall style.
Which Seedream 3.0 API version was retired?
Seedream 3.0's documented ModelArk model takes text input. Do not assume that an image-editing capability described for another Seedream or SeedEdit version is part of that endpoint. Model documentation
The current access issue is specific and dated. BytePlus lists bytedance-seedream-3-0-t2i-250415 in its retirement notice, with deactivation on May 13, 2026. Deprecations
That notice recommends dola-seedream-5-0-lite-260128 as the replacement. A preserved model-information page is therefore insufficient evidence that the retired endpoint can serve a new request. Deprecations
The public report is research documentation and supplies no downloadable Seedream 3.0 weights. There is no supported local installation procedure to derive from it. Technical report
Record the endpoint and model identifiers before planning a migration. If the provider has already switched an endpoint, confirm the effective model rather than relying on the name in an old configuration file.
Keep archived outputs and prompts together. They can provide comparison material for the replacement, but they do not establish that the retired model is still available or that a new model will reproduce them.
How do you migrate a Seedream 3.0 ModelArk workflow?
As of September 5, 2026, do not build a new ModelArk integration around the endpoint named in the deactivation notice. Follow BytePlus's documented replacement route for new hosted work. Deprecations
For an existing endpoint, BytePlus documents opening Online Inference, selecting the endpoint, using Switch Version, and confirming the resulting model on its details page. Deprecations
For a fresh application, the current image tutorial documents seedream-5-0-lite-260128. The following example uses that replacement model, rather than calling Seedream 3.0. API tutorial
Configure ModelArk access and set ARK_API_KEY before running this adapted request:
curl --fail-with-body https://ark.ap-southeast.bytepluses.com/api/v3/images/generations \
-H "Authorization: Bearer $ARK_API_KEY" \
-H 'Content-Type: application/json' \
-d '{
"model": "seedream-5-0-lite-260128",
"prompt": "A flower shop poster with the headline OPEN STUDIO, one central yellow bouquet, cream background, generous margins.",
"size": "2K",
"response_format": "url",
"sequential_image_generation": "disabled"
}'
Save the returned image and compare the headline with the supplied wording. Check the margins, bouquet placement, and any unrequested lettering before accepting the design.
For a migration trial, use prompts representative of the work your application already handles. Keep the required text unchanged so you can assess layout and rendering without changing the task itself.
Write down the old and new model identifiers beside each comparison. Record missing text, unwanted additions, and manual corrections as separate outcomes rather than reducing the review to a single style preference.
Include prompts that previously caused problems. A replacement should be evaluated against the cases that matter to your project, not only the easiest designs in an archived collection.
The Seedream 5.0 Lite access guide covers the replacement's hosted workflow. Review its documented options before assuming that a legacy parameter or behavior carries over.
How does Seedream 3.0 compare with later Seedream models?
| Model | Documented scope | Practical distinction |
|---|---|---|
| Seedream 4.0 | Unified generation and image editing. Product page | Includes reference-based tasks beyond the 3.0 text-only endpoint. |
| Seedream 5.0 Lite | Multimodal generation with reasoning and online search. Product page | Named as the replacement family in the BytePlus retirement notice. Deprecations |
Choose according to the task and current service availability. For a text-heavy poster, compare exact wording and layout; for an image edit, evaluate reference preservation as a separate requirement.
Use the ComfyUI guide if you are reorganizing a visual workflow around a replacement. Keep the generation stage and the acceptance review explicit as you change providers or model versions.
What else should you know about Seedream 3.0 migration?
Can I download Seedream 3.0?
Seedream 3.0 has no open model weights in its cited report or service documentation. Its documented deployment is hosted. Technical report, Model documentation
Is the documented Seedream 3.0 endpoint still active?
BytePlus lists bytedance-seedream-3-0-t2i-250415 with a May 13, 2026 deactivation date. Its recommended replacement is dola-seedream-5-0-lite-260128. Deprecations
Does Seedream 3.0 support Chinese and English text?
Yes, Seedream 3.0's technical report describes Chinese and English image text. Compare generated wording with an approved text source when reviewing a bilingual design. Technical report
Will the replacement reproduce my archived images?
When migrating from Seedream 3.0, compare replacement outputs with archived prompts and images. BytePlus advises evaluating capabilities, parameters, pricing, and performance for the new version. Deprecations
Sources
- ByteDance Seedream 3.0 report publication
- ByteDance Seedream 3.0 technical report
- BytePlus Seedream 3.0 model documentation
- BytePlus model deprecations
- ByteDance Seedream 4.0 product page
- ByteDance Seedream 5.0 Lite product page
- BytePlus image generation tutorial
Top comments (0)