Seed 2.0 Lite
Language modelAPI only
Seed 2.0 Lite
ByteDance
- Released
- February 14, 2026
- Data date
- September 8, 2026
- Price
- Input · Output / 1M tokens
- Input
- Text, Image, Video
- Output
- Text
Seed 2.0 Lite is ByteDance’s cost-oriented service tier for frequent multimodal calls. The proprietary API model handles text, images, and video with 256K tokens of context. Because ByteDance publishes neither a parameter count nor weights, Lite describes a serving tier rather than a local model size.
The Seed 2.0 family covers unstructured documents, visual tasks, and agent work. Lite is its smaller, more frequently called API option, not a downloadable checkpoint.
Specifications and access
| Specification | Value and source |
|---|---|
| Weights | ProprietarySource |
| Access | APISource |
| Context window | 256,000 tokensSource |
| Notes | Multimodal Seed 2.0 model for cost-efficient agent workloads; parameter count is not published.Source |
| Release | 2026-02-14Source |
| License | proprietary BytePlus termsSource |
| API model ID | seed-2-0-lite-260428Source |
| 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
- 57.9
- Score
- 57.9
- 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 Lite (0428) column
- Context
- Page compares multiple dated snapshots; this row is the Lite (0428) column.
BabyVision (Show measurement, test conditions, and source)
- Source value
- 64.7
- Score
- 64.7
- 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 Lite (0428) column
- Context
- Page compares multiple dated snapshots; this row is the Lite (0428) column.
BeyondAIME (Show measurement, test conditions, and source)
- Source value
- 79
- Score
- 79
- 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 Lite (0428) column
- Context
- Page compares multiple dated snapshots; this row is the Lite (0428) column.
BrowseComp (Show measurement, test conditions, and source)
- Source value
- 64
- Score
- 64
- 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 Lite (0428) column
- Context
- Page compares multiple dated snapshots; this row is the Lite (0428) column.
CGBench (Show measurement, test conditions, and source)
- Source value
- 65.5
- Score
- 65.5
- 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 Lite (0428) column
- Context
- Page compares multiple dated snapshots; this row is the Lite (0428) column.
CharXiv-DQ (Show measurement, test conditions, and source)
- Source value
- 94.5
- Score
- 94.5
- 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 Lite (0428) column
- Context
- Page compares multiple dated snapshots; this row is the Lite (0428) column.
CharXiv-RQ (Show measurement, test conditions, and source)
- Source value
- 82.4
- Score
- 82.4
- 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 Lite (0428) column
- Context
- Page compares multiple dated snapshots; this row is the Lite (0428) column.
ContPhy (Show measurement, test conditions, and source)
- Source value
- 62.4
- Score
- 62.4
- 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 Lite (0428) column
- Context
- Page compares multiple dated snapshots; this row is the Lite (0428) column.
ERQA (Show measurement, test conditions, and source)
- Source value
- 71.5
- Score
- 71.5
- 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 Lite (0428) column
- Context
- Page compares multiple dated snapshots; this row is the Lite (0428) column.
EgoTempo (Show measurement, test conditions, and source)
- Source value
- 68.4
- Score
- 68.4
- 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 Lite (0428) column
- Context
- Page compares multiple dated snapshots; this row is the Lite (0428) column.
FinSearchComp (Show measurement, test conditions, and source)
- Source value
- 63.8
- Score
- 63.8
- 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 Lite (0428) column
- Context
- Page compares multiple dated snapshots; this row is the Lite (0428) column.
FrontierSci-olympiad (Show measurement, test conditions, and source)
- Source value
- 72
- Score
- 72
- 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 Lite (0428) column
- Context
- Page compares multiple dated snapshots; this row is the Lite (0428) column.
Page 1 of 5
Our tests
SVG short test
One SVG prompt and fixed output settings. Captures are shown only with 0 reported reasoning tokens or documented lack of reasoning controls. Identical test conditions do not make the models' internal compute identical.
Earlier tests
Pelican on a bicycle
A community classic for free-form SVG drawing.
Seed 2.0 Lite
Reasoning (requested): high
Current attempt
- Run date
- Oct 1, 2026
- API provider
- openrouter
- Requested API model
- bytedance-seed/seed-2.0-lite
- API model reported in response
- bytedance-seed/seed-2.0-lite
- Reasoning setting
- high
- Pinned endpoint
- Seed | bytedance-seed/seed-2.0-lite-20260309
- Temperature
- Provider default
- Token limit including reasoning
- 8,192 tokens
- Test protocol
- community-visual-tests-v1
- Technical checks
- Passed, not a quality rating
- Response time
- 108.1 s
Visually reviewed. This individual test does not establish overall model quality.
Prompt and test conditions
Generate an SVG of a pelican riding a bicycle
Token limit including reasoning: 8,192 tokens
Task origin (Simon Willison)Popularity
13.9 / 100
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 |
| 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 |