Identity
- Status
- active
- Developer ID
seed-2.1-evolving- Released
- Jun 23, 2026
- Version
- Seed 2.1 Evolving
- License
- Unknown
ByteDance SeedSeed 2.1 Evolving
Seed 2.1 Evolving 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 hosted offerings
No Current Hosted API Offering Verified
The developer states that API access is available, but Model Markets has not verified an exact provider endpoint or published price for this model version.
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, 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-evolving, Seed 2.1 Evolving
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 EvolvingByteDance Seed | vs |  Gemini 3.1 ProGoogle DeepMind | cross-developer peerstext |
Seed 2.1 EvolvingByteDance Seed | vs | Seed 1.8ByteDance Seed | family variantsimage, text |
Seed 2.1 EvolvingByteDance Seed | vs | Seed 2.0 CodeByteDance Seed | family variantstext |
Seed 2.1 EvolvingByteDance Seed | vs | Seed 2.0 ProByteDance Seed | family variantsimage, text, video |
Seed 2.1 EvolvingByteDance Seed | vs | Gemini Deep Research MaxGoogle DeepMind | cross-developer peerstext |
Seed 2.1 EvolvingByteDance Seed | vs | Gemini Deep ResearchGoogle DeepMind | cross-developer peerstext |
Seed 2.1 EvolvingByteDance Seed | vs |  Muse Spark 1.3Meta | cross-developer peersimage, text, video |
Seed 2.1 EvolvingByteDance Seed | vs |  GPT-5.3 CodexOpenAI | cross-developer peersimage, text |
Seed 2.1 EvolvingByteDance Seed | vs |  Qwen3 VL FlashQwen | cross-developer peersimage, text, video |
Seed 2.1 EvolvingByteDance Seed | vs | Qwen3.7 MaxQwen | cross-developer peersimage, text, video |
Questions
Seed 2.1 Evolving FAQs
What is Seed 2.1 Evolving?+
Seed 2.1 Evolving 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 Evolving support?+
Seed 2.1 Evolving's current record lists Text, Image, and Video as input and Text as output.
Is Seed 2.1 Evolving available through an API?+
Seed 2.1 Evolving is marked as API-available. No directly sourced serving-provider record is attached yet.
How much does Seed 2.1 Evolving cost through an API?+
No directly sourced token price is currently attached to Seed 2.1 Evolving. Missing prices remain unknown rather than being inferred from another model or provider.
What capabilities and tasks does Seed 2.1 Evolving support?+
Seed 2.1 Evolving's recorded capabilities are agents, chat, generation, reasoning, structured outputs, and tools. Its supported tasks are image, reasoning, text, and video.
Can Seed 2.1 Evolving be self-hosted?+
Seed 2.1 Evolving is not marked as an open-weight model. Self-hosting is marked as unsupported, with no license recorded.
Does Seed 2.1 Evolving have related versions or aliases?+
No predecessor is recorded. No successor is recorded. Recorded aliases are seed-2.1-evolving and Seed 2.1 Evolving.
Which models can Seed 2.1 Evolving be compared with?+
The current compatible peer set includes Gemini 3.1 Pro, Seed 1.8, Seed 2.0 Code, Seed 2.0 Pro, and Gemini Deep Research Max. 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 Evolving?+
Seed 2.1 Evolving 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.