Lab release history
Last updated Aug 20, 2025
ByteDance Seed model releases
ByteDance AI team behind Seed, Doubao, Seed-OSS, and multimodal generation models. This page collects the lab's model releases, lifecycle events, source links, and model metadata in one crawlable record.
4
Models
1
Labs
1
Open
4
Recent
4 models
Seed-OSS-36B-Instruct
AvailableByteDance SeedOpen source
ByteDance Seed's Apache-licensed long-context reasoning and agent model, with controllable thinking budgets and a native 512K context.
Type
Dense
Params
36B
Context
512K
Top eval
—
Released
Aug 20, 2025
10mo ago
Dense36B512K ctxAug 20, 2025
Seed Thinking v1.5
AvailableByteDance SeedProprietary
ByteDance Seed reasoning model focused on long-horizon thinking and problem solving.
Type
—
Params
Undisc.
Context
—
Top eval
—
Released
May 22, 2025
1.1y ago
—Undisc.— ctxMay 22, 2025
Doubao-1.5-pro
AvailableByteDance SeedProprietary
Doubao 1.5 Pro update positioned for stronger multimodal, reasoning, and agentic work in Volcano Engine.
Type
—
Params
Undisc.
Context
—
Top eval
—
Released
Jan 22, 2025
1.4y ago
—Undisc.— ctxJan 22, 2025
Doubao-pro
AvailableByteDance SeedProprietary
ByteDance's commercial Doubao foundation model line for text, code, and assistant workloads.
Type
—
Params
Undisc.
Context
—
Top eval
—
Released
May 15, 2024
2.1y ago
—Undisc.— ctxMay 15, 2024