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AI Atlas
Family

Seed

All 8 models in the terminal →

data quality35

first seen 11 Sept 2026

family_01M2A7440276ARNW13Z3M6P6FS

Models
8
First release
27 Apr 2025
Latest release
20 Aug 2025
Parameters
7.51B – 36.1B
Artifacts
0
Providers
0

Releases

Family releases by statusActiveDeprecatedMay 25Jun 25Jul 25Aug 25Seed-Coder-8B-Base — 27 Apr 2025Seed-Coder-8B-Instruct — 27 Apr 2025Seed-Coder-8B-Reasoning — 27 Apr 2025Seed-X-PPO-7B — 16 Jul 2025Seed-OSS-36B-Base — 20 Aug 2025Seed-OSS-36B-Instruct — 20 Aug 2025

6 dated releases · dot size = best benchmark rank of the member · 2 members without a sourced release date not shown

Members 8

Family members
ModelParamsContextOpennessLicenceReleasedStatusBest rankCompare
Seed-OSS-36B-BaseByteDance36.1B—Open weightsApache-2.020 Aug 2025Active—
Seed-OSS-36B-InstructByteDance36.1B512KOpen weightsApache-2.020 Aug 2025Deprecated#143 τ²-bench
Seed-X-PPO-7BByteDance7.51B—Open weightsOther16 Jul 2025Active—
Seed-Coder-8B-BaseByteDance8.25B—Open weightsMIT27 Apr 2025Active—
Seed-Coder-8B-InstructByteDance8.25B—Open weightsMIT27 Apr 2025Active—
Seed-Coder-8B-ReasoningByteDance8.25B—Open weightsMIT27 Apr 2025Active—
doubao-seed-codeByteDance—256KClosed——Active#81 MMMU-Pro
hyperclova-x-seed-think-32bNaver—128KOpen weights——Active#69 τ²-bench

Lineage among members 2 relations

Open in Graph →
Lineage of the Seed familySeed-Coder-8B-Instruct fine-tuned from Seed-Coder-8B-BaseSeed-Coder-8B-Reasoning fine-tuned from Seed-Coder-8B-BaseSeed-Coder-8B-Base8.25BSeed-Coder-8B-BaseSeed-Coder-8B-Instruct8.25BSeed-Coder-8B-InstructSeed-Coder-8B-Reasoning8.25BSeed-Coder-8B-Reasoning

Benchmark progress

Benchmark progress needs at least two dated members with a rank on the same benchmark. Ranks (not scores) are what the family endpoint provides.

Aggregates are computed from the members' sourced claims; members without a release date or parameter count are left out of the range and timeline rather than guessed. Methodology →