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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...

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Specification
Model ID
bytedance-seed/seed-2-1-turbo
Weight license
Not verified; consult the exact publisher model card
Modality
Text+image+video >text
Context
262.1K tokens
Input
$0.500/1M
Output
$2.50/1M
Updated
Nov 14, 2026
Scores
Capabilities
  • Supports tool calling
  • Supports vision inputs
  • Supports long-context workflows
  • Supports deeper reasoning tasks

Input and output

Accepts Text, Image, Video inputs. Returns Text outputs.

Supported parameters

frequency_penaltyinclude_reasoningmax_tokensreasoningresponse_formatstopstructured_outputstemperaturetool_choicetoolstop_p

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