What is the context length of Seed 1.6?

Seed 1.6 has a 262,144 token context window.

What inputs and outputs does Seed 1.6 support?

Seed 1.6 accepts images, text, and video as input and returns text.

What other text models does ByteDance Seed have?

Seed 2.1 Turbo, Seed-2.0-Lite, and Seed-2.0-Mini are other text models from ByteDance Seed.

When was Seed 1.6 released?

Seed 1.6 was released on December 23, 2025.

ByteDance Seed: Seed 1.6

bytedance-seed/seed-1.6

Seed 1.6 is a general-purpose model released by the ByteDance Seed team. It incorporates multimodal capabilities and adaptive deep thinking with a 256K context window.

Modalities

Context

262K

Released

Dec 23, 2025

Not currently available through EU in-region routing. In-region routing docs

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Seed 1.6 is a general-purpose model released by the ByteDance Seed team. It incorporates multimodal capabilities and adaptive deep thinking with a 256K context window.

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ByteDance Seed: Seed 1.6

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ByteDance Seed: Seed 1.6

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Frequently asked questions

What is Seed 1.6?

What is the context length of Seed 1.6?

What inputs and outputs does Seed 1.6 support?

What other text models does ByteDance Seed have?

When was Seed 1.6 released?

Explore more models

More models from bytedance-seed

More models from bytedance-seed