ByteDance Seed

Seed 2.1 Pro

Flagship ByteDance Seed 2.1 model for complex multimodal reasoning, coding, and agents

bytedance-seed/seed-2.1-pro

Context

256K

Output

256K

Released

2026-06-23

Knowledge cutoff

—

Types

InputTextImageVideo
OutputText

Reasoning

Supported

Tool use

Supported

Structured output

Supported

Attachments

Supported

Open weights

—

Provider pricing

No providers currently list this model.

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