AI Research Atlas

Seed-Coder-8B

ByteDance Seed · 4 June 2025

8B open code models (base, instruct, reasoning) whose pretraining data was scored and filtered by an LLM instead of hand-written rules.

A model-centric data pipeline replaces per-language heuristics; the reasoning variant adds long-CoT RL. Authors claim SOTA among open models of similar size and wins over some larger ones. MIT licence.

Date
Wednesday, 4 June 2025
Lab
ByteDance Seed
Kind
open-weights
Access
open weights

Paper v1 2025-06-04; HF weights appeared 2025-04-29 UTC, about five weeks before the paper.

Sources

  1. arxiv.org/abs/2506.03524
  2. huggingface.co/ByteDance-Seed/Seed-Coder-8B-Instruct

This record was checked against its sources on 6 October 2026. How we check