none reviewed yet · 1 benchmark observation · capture dates not recorded
Inspect the evidenceByteDance Seed · MODEL PROFILE
ByteDance Seed 2.1 Pro Preview
Teams evaluating screenshot- or mockup-to-page workflows inside the ByteDance/Volcengine ecosystem
Saved editorial fit for your current task lens; not a benchmark result
How scoring worksNo verified rate for your workload
Adjust workloadAt a glance
9 facts- Provider
- ByteDance Seed
- Type
- API model
- Access
- Arena AI Code arena (preview), Volcengine / Doubao open platform, Feishu Spark and Coze; online trial at volcengine.com/product/doubao
- Context
- Not recorded
- Maximum output
- Not recorded
- License / weights
- Proprietary
- Input modalities
- Preview entry: text to text (DataLearner). The Seed2.1 family is multimodal - images, design mockups, floor plans and video in, with interactive-page generation from those inputs.
- Output modalities
- Not recorded
- Pricing notes
- No USD price published. Volcengine standard-mode text pricing for Seed 2.1 Pro is CNY 6.00 per 1M input and CNY 30.00 per 1M output, with prompt-cache reads at CNY 1.20 per 1M (DataLearner).
The practical trade-offs
Documented strengths
- Genuine image-to-interface capability: Seed2.1 generates interactive pages from floor plans, design mockups and video
- Best-in-class multimodal perception scores in its own table (BabyVision 73.7 vs 55.9 for GPT-5.5; WorldVQA 53.0 vs 34.6)
- Large Arena vote count (7,358) for a preview, so its Elo is tightly bounded
- Free to try in the Arena Code arena
Limitations to check
- Preview identifier with no published context window, max output or USD pricing
- SWE-Atlas 35.2 on debugging trails GPT-5.5 (44.7) and Claude Opus 4.7 (38.7)
- No Artificial Analysis coverage, no Design Arena row, no SWE-bench row
- Preview and productised Seed2.1 Pro benchmarks are different builds
Follow the source
4 source linksEvidence & conditions
4Source links
NoneReviewed records
1Benchmark runs
Not recordedLatest capture
- Evidence source 1
seed.bytedance.comDate not recorded - Evidence source 2
seed.bytedance.comDate not recorded - Evidence source 3
datalearner.comDate not recorded - Evidence source 4
arena.aiDate not recorded
Benchmark observations
Arena WebDev Frontend Inspect conditions
- name
- Arena WebDev Frontend
- value
- 1522
- unit
- arena_score
- source Url
- https://arena.ai/leaderboard/code/webdev/frontend
- checked At
- 2026-09-08T19:28:18Z
- attribution
- benchmark-publisher
- configuration
- Exact row seed-2.1-pro-preview; source results dated 2026-09-05; human preference; confidence interval +/-8; 7358 votes. This is a checked source snapshot, not a newly run September 8 evaluation.
Source reports, measured results, and editorial assessments are separate evidence types. Source dates do not imply a new benchmark run. Capture dates are shown when recorded; otherwise we say the capture date was not recorded. Recorded dates are compared with this catalogue snapshot (Sep 11, 2026), not today’s date.
Method AIS-V2
How this page is assessed
Quality claims follow Method AIS-V2.
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