Nanbeige Releases Nanbeige4.3-33B Open Agent Teacher Model
Nanbeige has officially announced Nanbeige4.3-33B, a 33B open model in the ~30B parameter class designed as a teacher for smaller agents, focusing on agentic co
On October 25, 2026, Nanbeige officially announced Nanbeige4.3-33B, an open model designed to push the performance ceiling of small agent models by serving as a powerful teacher model first.
Image source: Nanbeige official Hugging Face model card
Image credit: Nanbeige official Hugging Face model card (benchmark chart)
Nanbeige4.3-33B is a 33B-class open model built to deliver state-of-the-art agentic performance among open models, focusing on agentic coding and cowork benchmarks while supporting cost-efficient inference when integrated into mainstream agent harnesses.
Teacher Model Strategy for Agentic Performance
To raise the performance ceiling of smaller agents, Nanbeige's 4.3 series strategy prioritizes building a robust teacher model first. This model will act as a teacher for upcoming smaller Nanbeige models, starting with Nanbeige4.3-3B.
- Agentic Coding & Cowork Focus: Engineered to handle complex multi-step tasks and real-world workflows effectively.
- Mainstream Harness Integration: Integrates into popular agent frameworks for cost-efficient real-world task execution.
- Compact Model Roadmap: Serves as the foundational teacher for forthcoming smaller variants like Nanbeige4.3-3B.
Verification and Caveats
While the developers report strong results on agentic coding and cowork evaluations, these benchmark claims are self-reported and await independent third-party verification. Additionally, the dense 33B-class model size requires substantial VRAM for local execution.
Sources
- Official model card and benchmarks: Nanbeige4.3-33B
- Nanbeige Official X: Nanbeige4.3-33B Announcement