Seedream 5.0 Flash: which Seedream 5 id Sume's catalog lists

Higgsfield's changelog added Seedream 5.0 Flash on Sep 23, 2026. Sume's image catalog, as read 2026-10-01, lists bytedance-seed/seedream-5-lite for the Seedream 5 family and has no Flash id, so call GET /v1/images/models to see what is live before you code against a name.

What did Higgsfield announce?

The changelog describes Seedream 5.0 Flash as a fast image model with visual reasoning, in 1K, 1.5K and 2K resolution, with multi-reference input that blends style in one frame, and generation plus editing in one model. It is offered inside Higgsfield's own model selector.

What does Sume list for Seedream 5?

The catalog maps bytedance-seed/seedream-5-lite to the router id seedream-5-lite. The docs say the bare Image Router ids are accepted as aliases for their org/slug equivalents. See the Image API docs.

How do I check before calling?

Sume publishes the parameters each model accepts as capability descriptors, and a request that sets an unlisted parameter is rejected with 400 unsupported_parameter. A 1.5K request has no tier on Sume: the normalized resolution values are 512, 1K, 2K and 4K. Read the descriptor for seedream-5-lite and pin only what it lists.

Can I let Sume choose?

model: "sume/auto" lets Image Router pick, but Sume never discloses which family ran, so it is not a way to request Seedream specifically. For the related Pro question see Seedream 5.0 Pro on Sume.