ByteDance Seed

2 across 1 category board · 14 without a live endpoint · 7 equivalent routes · 1 superseded

Language ModelCap Index

Language rank	Model	ModelCap Index	Gravity	Context	Input tokens	Output tokens	Released
#130	Seed OSS 36B InstructOpen weights	46.9	13.6	—	—	—	last year
#208	Seed OSS 36B Base woSynOpen weights	34.5	7.5	—	—	—	last year

No live endpoint

Board status	Model	Gravity	Context	Input tokens	Output tokens	Released
No live endpoint	Stable DiffCoder 8B InstructOpen weights Language	7.8	—	—	—	9 months ago
No live endpoint	AHN Mamba2 for Qwen 2.5 Instruct 14BOpen weights Language	2.6	—	—	—	last year
No live endpoint	AHN Mamba2 for Qwen 2.5 Instruct 3BRestricted license Language	8.7	—	—	—	last year
No live endpoint	BFS Prover V2 7BOpen weights Language	7.8	—	—	—	last year
No live endpoint	BFS Prover V2 32BOpen weights Language	2.5	—	—	—	last year
No live endpoint	cudaLLM 8BOpen weights Language	2.0	—	—	—	last year
No live endpoint	Tar 1.5BOpen weights Language	2.5	—	—	—	last year
No live endpoint	Tar 7BOpen weights Language	2.7	—	—	—	last year
No live endpoint	BAGEL 7B MoTOpen weights Language	10.5	—	—	—	last year
No live endpoint	Seed Coder 8B ReasoningOpen weights Language	7.0	—	—	—	last year
No live endpoint	academic ds 9BOpen weights Language	12.2	—	—	—	last year
No live endpoint	UI TARS 72B DPOOpen weights Language	6.8	—	—	—	last year
No live endpoint	UI TARS 7B DPOOpen weights Language	8.6	—	—	—	last year
No live endpoint	UI TARS 2B SFTOpen weights Language	9.2	—	—	—	last year

Reviewed equivalent routes

Board status	Model	Gravity	Context	Input tokens	Output tokens	Released
Represented by Stable DiffCoder 8B Instruct	Stable DiffCoder 8B BaseOpen weights Language	6.4	—	—	—	9 months ago
Represented by Seed OSS 36B Instruct	Seed OSS 36B BaseOpen weights Language	9.5	—	—	—	last year
Represented by Seed Coder 8B Reasoning	Seed Coder 8B Reasoning bf16Open weights Language	3.3	—	—	—	last year
Represented by Seed Coder 8B Reasoning	Seed Coder 8B InstructOpen weights Language	9.8	—	—	—	last year
Represented by Seed Coder 8B Reasoning	Seed Coder 8B BaseOpen weights Language	8.2	—	—	—	last year
Represented by UI TARS 72B DPO	UI TARS 72B SFTOpen weights Language	2.7	—	—	—	last year
Represented by UI TARS 7B DPO	UI TARS 7B SFTOpen weights Language	8.0	—	—	—	last year

Superseded versions

Board status	Model	Gravity	Context	Input tokens	Output tokens	Released
Superseded by BFS Prover V2 7B	BFS Prover V1 7BOpen weights Language	4.7	—	—	—	last year

ByteDance Seed models: common questions

How many AI models has ByteDance Seed released?

ModelCap tracks 17 canonical ByteDance Seed models as of 24 October 2026: 17 language models (2 with a public ModelCap Index position). Superseded versions and equivalent serving routes stay listed on this page, marked as such.

What is the best ByteDance Seed model?

Seed OSS 36B Instruct is ByteDance Seed's highest-ranked model as of 24 October 2026, at ModelCap Index position #130 with a score of 46.9, followed by Seed OSS 36B Base woSyn (#208). The table lists every ranked ByteDance Seed model in Index order.

Are ByteDance Seed models open-weight?

16 of 17 tracked ByteDance Seed models publish downloadable weights (open weights). ModelCap labels weight availability from repository metadata, not whether the training stack is open source; the licence class is shown beside each row.

What is the newest ByteDance Seed model?

Stable DiffCoder 8B Instruct, first listed on 15 January 2026. New ByteDance Seed models appear here as soon as they pass automatic identity checks; the launches page tracks releases across every publisher.