BOSS Zhipin’s Nanbeige team open-sources Nanbeige4.3-33B, a 512K-context agentic coding model under Apache 2.0
Confirmed
The takeaway
On Oct 24, 2026 the Nanbeige team at Kanzhun (operator of China’s BOSS Zhipin recruitment platform) published Nanbeige4.3-33B and its base model on Hugging Face under Apache 2.0.
Status
- Claim
Confirmed
- Our reporting
- High confidence
- Importance
- 2 of 5
- Last verified
- 26 October 2026
Your AI and this story
- GPT-6 Astra177 days after its cutoff
- Claude Opus 5.5116 days after its cutoff
- Gemini 4 Hydrogen207 days after its cutoff
- Grok 4.7146 days after its cutoff
None of these four assistants can know about it. The closest, Claude Opus 5.5, stops 116 days before it.
Key facts
- Hugging Face repos Nanbeige/Nanbeige4.3-33B and -Base created Oct 24, 2026; Apache 2.0 (commercial use allowed); ~33.1B parameters
- Context window 524,288 tokens (512K); enable_thinking / preserve_thinking switches; XML or JSON tool calls
- Team comparison against Qwen3.8-27B, Muse-Glimmer-30B and Gemma4-31B at highest thinking effort with the same harness: Terminal-Bench 2.1 and 4.0, SWE-Atlas-QnA, NL2Repo, DeepSWE, Automation Bench, Toolathlon-Verified, EnterpriseOps-Gym, GDPval, Claw-Eval, DeepPlanning, Tau3-Bench; ‘leads on most’; on JobBench it beats the baseline in most of 35 occupations (self-reported)
- Strategy: a high-capacity teacher agent first, then distillation into small models (a Nanbeige4.3-3B is named)
- Pandaily covered it on Oct 26; HF showed ~2.8k downloads and ~590 likes on Oct 26
What happened
A recruitment-platform company’s AI team released a mid-sized open model aimed at coding agents rather than chat. Weights for the instruct and base versions went up on Hugging Face under a permissive licence, with serving examples for vLLM and SGLang.
Why it matters
It adds a 30B-class Chinese open model with a longer context (512K) than its named rivals. Its benchmark lead over Qwen, Meta and Google models of similar size is the team’s own claim until independent leaderboards test it.
Sources
2 sources from 2 sites. Numbers match the chips in the text.
2 sources: 1 primary, 1 press
Primary
- Hugging Face: Nanbeige/Nanbeige4.3-33B model cardhuggingface.co, official
Press
- Pandaily: BOSS Zhipin’s Nanbeige team open-sources Nanbeige4.3-33B (Oct 26)pandaily.com, press
Changes
- Filed (model card read on Hugging Face)