Language modelAPI only
Seed 2.0 Pro
ByteDance
- Released
- February 14, 2026
- Data date
- September 8, 2026
- Predecessor
- Seed 1.8
- Price
- Input · Output / 1M tokens
- Input
- Text, Image, Video
- Output
- Text
Seed 2.0 Pro is ByteDance’s large proprietary tier for visual puzzles, documents, video, and other unstructured information. It handles text, images, and video with 256K tokens of context. The parameter count is unpublished, with access provided through ByteDance and BytePlus APIs.
ByteDance documents Seed 1.8 as the direct predecessor and describes stronger handling of unstructured inputs. Pro is therefore the performance-oriented Seed 2.0 tier, not a name for freely available weights.
Specifications and access
| Specification | Value and source |
|---|---|
| Weights | ProprietarySource |
| Access | APISource |
| Context window | 256,000 tokensSource |
| Notes | Current Seed 2.0 Pro model for agentic and coding workloads; parameter count is not published.Source |
| Release | 2026-03-26Source |
| License | proprietary BytePlus termsSource |
| API model ID | seed-2-0-pro-260328Source |
| Input | Text, Image, VideoSource |
| Output | TextSource |
Page 1 of 5
Measurements without matching peer values
These measurements have no matching peer values under the same test conditions. Their original values and sources remain available here.
BABE (Show measurement, test conditions, and source)
- Source value
- 53.5
- Score
- 53.5
- Metric
- percent
- Unit
- %
- Category
- reasoning
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- ByteDance Seed official benchmark table
- Status
- active
- Retrieved at
- 2026-09-08
- Methodology
- Vendor-reported result. Seed2.0 Pro (0215) column
- Context
- Page labels this comparison column Pro (0215), not the later API release snapshot.
BabyVision (Show measurement, test conditions, and source)
- Source value
- 60.6
- Score
- 60.6
- Metric
- percent
- Unit
- %
- Category
- perception
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- ByteDance Seed official benchmark table
- Status
- active
- Retrieved at
- 2026-09-08
- Methodology
- Vendor-reported result. Seed2.0 Pro (0215) column
- Context
- Page labels this comparison column Pro (0215), not the later API release snapshot.
BeyondAIME (Show measurement, test conditions, and source)
- Source value
- 86.5
- Score
- 86.5
- Metric
- percent
- Unit
- %
- Category
- reasoning
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- ByteDance Seed official benchmark table
- Status
- active
- Retrieved at
- 2026-09-08
- Methodology
- Vendor-reported result. Seed2.0 Pro (0215) column
- Context
- Page labels this comparison column Pro (0215), not the later API release snapshot.
BrowseComp (Show measurement, test conditions, and source)
- Source value
- 77.3
- Score
- 77.3
- Metric
- percent
- Unit
- %
- Category
- search-agent
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- ByteDance Seed official benchmark table
- Status
- active
- Retrieved at
- 2026-09-08
- Methodology
- Vendor-reported result. Seed2.0 Pro (0215) column
- Context
- Page labels this comparison column Pro (0215), not the later API release snapshot.
CGBench (Show measurement, test conditions, and source)
- Source value
- 65
- Score
- 65
- Metric
- percent
- Unit
- %
- Category
- long-video
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- ByteDance Seed official benchmark table
- Status
- active
- Retrieved at
- 2026-09-08
- Methodology
- Vendor-reported result. Seed2.0 Pro (0215) column
- Context
- Page labels this comparison column Pro (0215), not the later API release snapshot.
CharXiv-DQ (Show measurement, test conditions, and source)
- Source value
- 93.5
- Score
- 93.5
- Metric
- percent
- Unit
- %
- Category
- infographics
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- ByteDance Seed official benchmark table
- Status
- active
- Retrieved at
- 2026-09-08
- Methodology
- Vendor-reported result. Seed2.0 Pro (0215) column
- Context
- Page labels this comparison column Pro (0215), not the later API release snapshot.
CharXiv-RQ (Show measurement, test conditions, and source)
- Source value
- 80.5
- Score
- 80.5
- Metric
- percent
- Unit
- %
- Category
- infographics
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- ByteDance Seed official benchmark table
- Status
- active
- Retrieved at
- 2026-09-08
- Methodology
- Vendor-reported result. Seed2.0 Pro (0215) column
- Context
- Page labels this comparison column Pro (0215), not the later API release snapshot.
ContPhy (Show measurement, test conditions, and source)
- Source value
- 67.4
- Score
- 67.4
- Metric
- percent
- Unit
- %
- Category
- motion
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- ByteDance Seed official benchmark table
- Status
- active
- Retrieved at
- 2026-09-08
- Methodology
- Vendor-reported result. Seed2.0 Pro (0215) column
- Context
- Page labels this comparison column Pro (0215), not the later API release snapshot.
ERQA (Show measurement, test conditions, and source)
- Source value
- 68.5
- Score
- 68.5
- Metric
- percent
- Unit
- %
- Category
- embodied
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- ByteDance Seed official benchmark table
- Status
- active
- Retrieved at
- 2026-09-08
- Methodology
- Vendor-reported result. Seed2.0 Pro (0215) column
- Context
- Page labels this comparison column Pro (0215), not the later API release snapshot.
EgoTempo (Show measurement, test conditions, and source)
- Source value
- 71.8
- Score
- 71.8
- Metric
- percent
- Unit
- %
- Category
- motion
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- ByteDance Seed official benchmark table
- Status
- active
- Retrieved at
- 2026-09-08
- Methodology
- Vendor-reported result. Seed2.0 Pro (0215) column
- Context
- Page labels this comparison column Pro (0215), not the later API release snapshot.
FinSearchComp (Show measurement, test conditions, and source)
- Source value
- 70.2
- Score
- 70.2
- Metric
- percent
- Unit
- %
- Category
- real-world
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- ByteDance Seed official benchmark table
- Status
- active
- Retrieved at
- 2026-09-08
- Methodology
- Vendor-reported result. Seed2.0 Pro (0215) column
- Context
- Page labels this comparison column Pro (0215), not the later API release snapshot.
FrontierSci-olympiad (Show measurement, test conditions, and source)
- Source value
- 74
- Score
- 74
- Metric
- percent
- Unit
- %
- Category
- reasoning
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- ByteDance Seed official benchmark table
- Status
- active
- Retrieved at
- 2026-09-08
- Methodology
- Vendor-reported result. Seed2.0 Pro (0215) column
- Context
- Page labels this comparison column Pro (0215), not the later API release snapshot.
Page 1 of 5
Popularity
14.7 / 100
Predecessor and successor
Sources and data date
| Type | Evidence and data date |
|---|---|
| Price | Base API prices without caching or batch discounts. Higher context tiers and other rates are listed under Costs. |
| Input | Documented modalities. Retrieved September 8, 2026. |
| Output | Documented modalities. Retrieved September 8, 2026. |
| Research status | Research date September 8, 2026. 3 source URLs checked. This documents the inspected sources, not an exhaustive inventory of every publication. |
| Not found in the inspected sources | parameters-billions Original wording No exact value located in the checked primary model card/API documentation. |
| Not found in the inspected sources | active-parameters-billions Original wording No exact value located in the checked primary model card/API documentation. |
| Not found in the inspected sources | knowledge-cutoff Original wording No exact value located in the checked primary model card/API documentation. |
| Unresolved | AA benchmark rows Original wording No exact Artificial Analysis model page located in the checked public sitemap. |
| Additional source | Model metadata · BytePlus Seed 2.0 Pro documentation · Editorial description reviewed October 2, 2026 |
| Additional source | ByteDance Seed 2.0 launch · Editorial description reviewed October 2, 2026 |
| Additional source | ByteDance Seed 2.0 model page · Editorial description reviewed October 2, 2026 |
| Additional source | OpenRouter: Popularity index (derived), CC BY 4.0 |
| Additional source | Vercel AI Gateway: Popularity index (derived), CC BY 4.0 |
| Additional source | Creative Commons Attribution 4.0 |