Identity
- Status
- active
- Developer ID
seed-2.1-pro- Released
- Jun 23, 2026
- Version
- Seed 2.1 Pro
- License
- Unknown
ByteDance SeedSeed 2.1 Pro
Seed 2.1 Pro is a ByteDance Seed model for multimodal reasoning and agentic productivity.
- Token context
- Unknown
- Inputs
- Text, Image, Video
- Outputs
- Text
- Released
- Jun 23, 2026
Providers & Pricing
0 current sourced offerings
No Current Hosted API Offering VerifiedThis record is a downloadable or self-hosted artifact. Its cost depends on the infrastructure and serving configuration, not a universal model price.
At a Glance
Model Facts
Capacity
- Token context
- Unknown
- Maximum output
- Unknown
- Total parameters
- Unknown
- Active parameters
- Unknown
- Knowledge cutoff
- Not reported
Interface and Access
- Inputs
- Text, Image, Video
- Outputs
- Text
- API available
- Yes
- Open weights
- No
- Self-hostable
- No
- Reasoning
- Yes
- Vision
- Yes
- Tool calling
- Yes
- Capabilities
- agents, chat, computer-use, generation, reasoning, structured outputs, tools
This page represents one developer model product. Dated API snapshots, serving endpoints, pricing, regions, quantizations, and service tiers attach as versioned aliases or provider details and never create duplicate public model records.
Version Lineage
PredecessorUnknown
SuccessorsUnknown
Aliasesseed-2.1-pro, Seed 2.1 Pro
Explicit Unknowns
- Maximum output
- Architecture
- Tokenizer
- Knowledge cutoff
- Provider pricing
Primary Evidence
Sources and Observation Date
Comparable Peers
Related Model Comparisons
| A | Pair | B | Context |
|---|---|---|---|
Seed 2.1 ProByteDance Seed | vs | Seed 2.1 TurboByteDance Seed | family variantsimage, text, video |
Seed 2.1 ProByteDance Seed | vs | Seed 2.0 ProByteDance Seed | family variantsimage, text, video |
Seed 2.1 ProByteDance Seed | vs | Seed 2.0 LiteByteDance Seed | family variantsimage, text, video |
Seed 2.1 ProByteDance Seed | vs |  Qwen3.7 MaxQwen | cross-developer peersimage, text, video |
Seed 2.1 ProByteDance Seed | vs | Qwen3.7-PlusQwen | cross-developer peersimage, text, video |
Seed 2.1 ProByteDance Seed | vs |  Gemma 4 E4BGoogle DeepMind | cross-developer peersimage, text, video |
Seed 2.1 ProByteDance Seed | vs | Seed 1.8ByteDance Seed | family variantsimage, text |
Seed 2.1 ProByteDance Seed | vs |  o3-proOpenAI | cross-developer peersimage, text |
Seed 2.1 ProByteDance Seed | vs | Gemini 3.1 ProGoogle DeepMind | cross-developer peerstext |
Seed 2.1 ProByteDance Seed | vs | Gemini Deep Research MaxGoogle DeepMind | cross-developer peerstext |
Seed 2.1 ProByteDance Seed | vs | Gemini Deep ResearchGoogle DeepMind | cross-developer peerstext |
Seed 2.1 ProByteDance Seed | vs |  Hunyuan3D-2.1Tencent | cross-developer peersvideo |
Questions
Seed 2.1 Pro FAQs
What is Seed 2.1 Pro?+
Seed 2.1 Pro is a ByteDance Seed model for multimodal reasoning and agentic productivity. It is developed by ByteDance Seed and its current sourced lifecycle status is active.
What inputs and outputs does Seed 2.1 Pro support?+
Seed 2.1 Pro's current record lists Text, Image, and Video as input and Text as output.
Is Seed 2.1 Pro available through an API?+
Seed 2.1 Pro is marked as API-available. No directly sourced serving-provider record is attached yet.
How much does Seed 2.1 Pro cost through an API?+
No directly sourced token price is currently attached to Seed 2.1 Pro. Missing prices remain unknown rather than being inferred from another model or provider.
What capabilities and tasks does Seed 2.1 Pro support?+
Seed 2.1 Pro's recorded capabilities are agents, chat, computer-use, generation, reasoning, structured outputs, and tools. Its supported tasks are image, reasoning, text, and video.
Can Seed 2.1 Pro be self-hosted?+
Seed 2.1 Pro is not marked as an open-weight model. Self-hosting is marked as unsupported, with no license recorded.
Does Seed 2.1 Pro have related versions or aliases?+
No predecessor is recorded. No successor is recorded. Recorded aliases are seed-2.1-pro and Seed 2.1 Pro.
Which models can Seed 2.1 Pro be compared with?+
The current compatible peer set includes Seed 2.1 Turbo, Seed 2.0 Pro, Seed 2.0 Lite, Qwen3.7 Max, and Qwen3.7-Plus. Compatibility requires shared sourced modalities and tasks; it does not imply that one model is better. Browse model comparisons →
How current is the Model Markets record for Seed 2.1 Pro?+
Seed 2.1 Pro was last verified Sep 3, 2026 from ByteDance Seed's primary source, “Seed 2.1 Evolving | ByteDance Seed.” The evidence is classified as official fact.