"Seedream API" is the #2 related search for Seedream 5.5 on Google Trends after launch — second only to "seedream ai" itself. The answer comes in two halves: five days after launch, China's Volcano Ark is fully live (model ID and price list confirmed), while international BytePlus is still waiting (no per-image price, no model ID). Third parties have already filled the gap. This article records the full status as checked on Nov 14, 2026.
The Volcano Ark experience center (exp.volcengine.com) listed 5.5 on launch day: visual models → image generation → Doubao-Seedream-5.5. The API was promised "this week" at launch, and the price list went public Nov 12: output ¥0.13 (≤2.61MP) / ¥0.23 (2K), input image ¥0.05 each, text free. The model ID doubao-seedream-5.5 has appeared on third-party channels: apimodels listed it Nov 11, Ofox listed volcengine/doubao-seedream-5.5 Nov 13. This is currently the only channel with a confirmed official per-image price and model ID.
BytePlus launched its Seedream 5.5 product page and image packs on Nov 10 (Starter 700 images for $6.99 first purchase), but its ModelArk price list and API reference still covered only 5.0 pro/flash/lite, 4.5 and 4.0 as of the last third-party reads (Nov 11–12) — no 5.5 model ID. The product page is JS-rendered and this site can't read it directly; the last third-party reads (Hokai, laozhang.ai) found no 5.5 entry in the price list or trial links. nowrap reported Nov 13 that ModelArk lists Dola-Seedream-5.5 as available, with no price — a single-source claim, marked unverified here.
For reference: the 5.0 BytePlus model IDs are dola-seedream-5-0-pro-260628, dola-seedream-5-0-flash-260915 and seedream-5-0-lite-260128 (TeamoRouter). If 5.5 follows the same naming pattern, its ModelArk ID may carry a date suffix — but until the official ID is confirmed, don't guess the format.
Third parties moved faster than the official channels. WaveSpeed listed three endpoints on launch night (text-to-image, editing, layer decomposition) with model IDs bytedance/seedream-v5.5, /edit and /layer-decomposition. OpenRouter listed it Nov 12 (bytedance-seed/seedream-5-5; its page says released Nov 12 — the listing date). Others confirmed: Atlas Cloud, Higgsfield, Kie, Siray, SeedRouter (seedream-5-5), Segmind, apimodels (doubao-seedream-5-5), Ofox (volcengine/doubao-seedream-5.5), SeedVideo AI (from Nov 12). Pika Image Studio added it Nov 11. ComfyUI v0.45.0 (Nov 10) includes a 5.5 Partner Node, announced Nov 11 — cloud billing, no local weights, because 5.5 has no public weights to download.
TeamoRouter still hadn't added it as of Nov 13; OrcaRouter says it offers no ByteDance image models; SandBase's 5.5 routes returned 404/Model Not Found when checked Nov 9–10 (5.0 Pro at $0.09/image and 5.0 Flash at $0.018/image were callable then). These gaps can change at any time — check each platform's current page.
The same model has different IDs on different channels (checked Nov 14, 2026):
Doubao-Seedream-5.5 (officially confirmed)bytedance/seedream-v5.5 (text-to-image), /edit (editing), /layer-decomposition (layer decomposition)bytedance-seed/seedream-5-5volcengine/doubao-seedream-5.5doubao-seedream-5-5seedream-5-5Dola-Seedream-5.5 listed, no price — single source)Note: up to 10 reference images per request (30MB each), one output image per request; no session memory — multi-round editing means sending the previous result back as a reference each round, billed per round. For pricing details see our pricing guide.
Reference: Ofox — Seedream 5.5 Guide (re-checked Nov 13, 2026) (rewritten and organized by ModelBrief; facts per the official source)