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Language models

ByteDance Seed: Seed 2.1 Turbo

Seed 2.1 Turbo is a multimodal model from ByteDance Seed for coding and long-horizon agent workflows. It is suited for end-to-end software delivery, multi-step task execution, and understanding visual and...

Maker
Bytedance-seed
Context window
262K
Max output
262K
Input / 1M
$0.5
Output / 1M
$2.50
1M in + 1M out
$3

Everything else

Max output262K
Input / 1M$0.5
Output / 1M$2.50
Cache read / 1M
Cache write / 1M
1M in + 1M out$3
Takestext, image, video
Returnstext
Toolsyes
Reasoningoptional
Open weightsno
Released2026-08-12
Knowledge cutoff
Retires
Catalog idbytedance-seed/seed-2-1-turbo

Using it

In 00, this model is picked per agent — and per tier, so the model that answers your customers need not be the one that writes your code. Get 00.

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