ByteDance rolls out Seedream 5.5 image model across Dreamina, CapCut and BytePlus
In brief
- Seedream 5.5 launched November 9, 2026, from ByteDance's Seed team, Crypto Briefing reported.
- Up to 100 rounds of local editing can run on a single image.
- A 0.4% severe text corruption rate is cited in ByteDance's own preliminary benchmarks.
- Each 2K edit costs around 0.28 RMB, according to Crypto Briefing.
- Third-party access, US expansion and a Pro variant remain unconfirmed.
100 rounds on a single image
ByteDance describes the core feature as pixel-level stable multi-turn editing. Users can run up to 100 rounds of continuous local editing on one image, and the model is designed to hold detail and color accuracy through each of those rounds. It's the feature ByteDance has put front and center.
Transparency is the other notable addition.
Seedream 5.5 adds RGBA transparent output, so it can produce images with transparent backgrounds. ByteDance is also claiming improved photorealism and better text rendering (particularly for small, dense or multilingual content), which has been a weak spot for image models in general.
ByteDance's own numbers
The benchmark figures here are ByteDance's preliminary results. They aren't independent tests. By those numbers, Seedream 5.5 shows a severe text corruption rate of 0.4% and a minor corruption rate of 1.7% across a range of languages and formats.
The same preliminary benchmarks give the model a +55.62% GSB preference score in image-to-image realism over Seedream 5.0 Pro, its predecessor. GSB scoring captures how often evaluators prefer one model's output to another's in side-by-side comparisons.
Pricing is the other lever. Crypto Briefing reported that a 2K edit costs around 0.28 RMB, which comes in below Seedream 5.0 Pro in some tiers. ByteDance is also running promotions, including unlimited generation periods for users on CapCut and Dreamina.
Staying inside ByteDance's apps
Every platform in the rollout (Dreamina, CapCut, BytePlus, Doubao and Volcano Engine Ark) is a ByteDance property. Third-party access hasn't been confirmed.
The report also mentions a possible Pro variant of Seedream 5.5 and an anticipated move into the US market. Neither one has been confirmed, and there's no date attached to either.
Frequently asked questions
What is pixel-level stable multi-turn editing in Seedream 5.5?
It's how ByteDance describes the model's core editing feature. Users can run up to 100 rounds of continuous local editing on a single image, and the model is designed to keep detail and color accuracy through each round.
What does Seedream 5.5's GSB preference score measure?
GSB scoring captures how often evaluators prefer one model's output to another's in side-by-side comparisons. ByteDance's preliminary benchmarks give Seedream 5.5 a +55.62% GSB score in image-to-image realism over Seedream 5.0 Pro. It isn't an independent result.
Where is Seedream 5.5 available?
Seedream 5.5 is rolling out across Dreamina, CapCut and BytePlus, and it's also on Doubao and Volcano Engine Ark. All five are ByteDance properties, and third-party access hasn't been confirmed.
