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Doubao Seed 1.6

ByteDanceProprietaryPending Human Review

Seed1.6 is ByteDance’s multimodal foundation model with adaptive reasoning, offered under the Doubao name through Volcano Engine and internationally through BytePlus. Its 230B-parameter mixture-of-experts backbone activates 23B parameters and supports a 256K context. AdaCoT post-training lets callers choose automatic, full, or disabled thinking to balance latency and reasoning. Text and images can inform language answers, coding, document analysis, and interface understanding. Public weights are not offered. June 2025 availability is established by the official technical introduction and API catalog; the exact first public launch day is not asserted here.

2025-06
230B total, 23B active
Multimodal Mixture-of-Experts Transformer
Proprietary

Specifications

Parameters
230B total, 23B active
Architecture
Multimodal Mixture-of-Experts Transformer
License
Proprietary
Context Window
256,000 tokens
Type
multimodal
Modalities
textimage

Benchmark Scores

Advanced Specifications

Model Family
Seed
API Access
Available
Chat Interface
Not Available
Variants
ByteDance-Seed-1.6doubao-seed-1-6-250615

Capabilities & Limitations

Capabilities
adaptive reasoningcodingvisionlong context
Known Limitations
Closed weights; deployment depends on provider servicesReasoning mode affects latency and token consumptionVisual and factual interpretations require verification
Notable Use Cases
document assistantsmultimodal coding assistancevisual question answering

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