What this is
ByteDance's Doubao / Seed line is the lowest-priced flagship Chinese LLM family in 2026, with Seed 1.6 Flash at $0.022/M output tokens. The lineage split into "Doubao" (consumer + Volcano Engine product) and "Seed" (research-led model family) in 2025. This page is a 2026-05-15 release-by-release reference.
Doubao / Seed Release Timeline
| Date | Release | Notable |
|---|---|---|
| Jun 2025 | Doubao Large Model 1.6 | 63% price cut vs previous generation |
| Oct 14, 2025 | Seed 1.6 | 256K context; vision + tools + thinking modes |
| Oct 2025 | Doubao 1.6 (upgraded) | Native four thinking-length modes |
| Feb 14, 2026 | Doubao 2.0 / Seed 2.0 | Flagship multimodal, agentic-coding focus, 256K context |
| 2026 | Seed 1.6 Flash, Seed 2.0 Pro variants | 19 SKU lineup; pricing floor $0.022/M |
Family at a Glance (Mid-2026)
| Model | Position | Pricing |
|---|---|---|
| Seed 2.0 | Flagship multimodal + agentic | Higher tier |
| Seed 2.0 Pro | Reasoning flagship | Pro tier |
| Seed 1.6 / 1.6 Flash | Workhorse / cost-efficient | $0.022/M output (Flash floor) |
| Seed 1.6-Embedding | Multimodal embeddings (text + image + video) | Embedding tier |
| Doubao consumer app | End-user chatbot | Free / freemium |
Six Things the Lineage Tells You
- ByteDance set the price floor in 2026 at $0.022/M output tokens. Doubao 1.6 launched with a 63% cut vs prior gen; Seed 1.6 Flash cemented the floor.
- Seed 1.6 introduced four-mode thinking with vision, tools, and configurable thinking length — all native in one model.
- Seed 2.0 (Feb 2026) leaned into agentic coding as the new product focus.
- Multimodal embeddings (Seed 1.6-Embedding) enable joint retrieval across text, image, and video — broader than most competitors' text-only embeddings.
- The lineup ships 19 production SKUs. Wider tier breadth than any other Chinese lab's API.
- Doubao consumer app reaches 100M+ users. ByteDance's distribution (TikTok, Douyin) drives consumer scale most labs can't match.
What This Means for AI Visibility
Doubao's price floor pressures every other Chinese lab on cost-per-token economics. For developers and enterprises, the practical impact is that the cheapest competitive Chinese LLM is now ByteDance's, displacing some DeepSeek-priced workloads. Brand-visibility teams should track Doubao consumer app outputs separately because the consumer reach is concentrated in China and TikTok-adjacent regions.
Methodology
Release data from Baidu Baike Doubao Large Model, ByteDance Seed homepage, Doubao API setup 2026, Caixin Global on Doubao 2.0, and TMTPost on Volcano Engine + Doubao.
How Presenc AI Helps
Presenc AI tracks brand visibility across the Doubao / Seed API surfaces (Volcano Engine, third-party hosters) and inside the Doubao consumer app. For brands with TikTok-adjacent customer concentration, Doubao representation is increasingly a meaningful AI-visibility surface.