Seed 2.1 Turbo
StandardByteDance's multimodal model for coding and long-horizon agent workflows.
256K-token context with text, image, and video input. Suited to end-to-end software delivery, multi-step task execution, and visual and video understanding, with planning, debugging, and self-correction built in.
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Seed 2.1 Turbo is somewhat expensive at $0.50/M tokens input and $2.50/M tokens output. The model supports vision/image input, extended reasoning, a 262K context window.
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Compare with
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Nemotron 3 Ultravs Seed 2.1 TurboFrequently Asked Questions about Seed 2.1 Turbo▼
When was Seed 2.1 Turbo released?
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Seed 2.1 Turbo was released on August 12, 2026.
Who created Seed 2.1 Turbo?
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Seed 2.1 Turbo was created by ByteDance.
How much does Seed 2.1 Turbo cost?
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Seed 2.1 Turbo costs $0.50/M input tokens and $2.50/M output tokens.
What is Seed 2.1 Turbo API pricing?
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The Seed 2.1 Turbo API is priced at $0.50 per million input tokens and $2.50 per million output tokens. You can access Seed 2.1 Turbo through idapt.app alongside 200+ other AI models in one workspace.
Is Seed 2.1 Turbo a reasoning model?
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Yes, Seed 2.1 Turbo is a reasoning model. It can think step-by-step through complex problems before providing an answer, often yielding better results on difficult tasks like math, coding, and multi-step logic.
Does Seed 2.1 Turbo support image or vision input?
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Yes, Seed 2.1 Turbo supports vision/image input. You can share images in your conversation and the model will analyze and respond based on their content.
Does Seed 2.1 Turbo support audio?
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No, Seed 2.1 Turbo does not support audio input.
What is the context window of Seed 2.1 Turbo?
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Seed 2.1 Turbo has a context window of 262K tokens, meaning it can process approximately 196,608 words of context at once.
Is Seed 2.1 Turbo open source?
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Seed 2.1 Turbo is a proprietary model developed by ByteDance. The model weights and training data are not publicly available.
What is Seed 2.1 Turbo good at?
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Based on benchmark data, Seed 2.1 Turbo excels at: visual analysis and image understanding. It is ByteDance's capable model suitable for a wide range of tasks.
Where can I use Seed 2.1 Turbo?
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You can chat with Seed 2.1 Turbo on idapt.app — no separate API key required. idapt is an AI workspace with 200+ models, agents, computers, and tasks. You can also access Seed 2.1 Turbo through ByteDance's own API or platform.