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Nanbeige4.3-33B: Open Apache-2.0 Teacher Model for Coding Agents

The Nanbeige Team put a ~33B Apache 2.0 flagship on Hugging Face as the teacher for a lightweight-agent line. Weights are downloadable today; a smaller distill (e.g. Nanbeige4.3-3B) is planned later. Context goes up to 512K tokens.

· ~7 min read · China Hot Tech

Soft parchment and ink navy editorial illustration of a teacher-model agent desk with a code terminal and coral accent

Illustration: soft parchment / ink navy / warm coral / chalk white — teacher-model desk motif. Specs below are from the Hugging Face model card and Chinese coverage (AI热报 / airebao).

Nanbeige4.3-33B is not pitched as a general chat toy. The card frames it as a high-capacity teacher agent first: ship a strong ~30B open model for coding and professional cowork, then distill those agent skills into smaller siblings. Contact on the card is [email protected] (Boss Zhipin / 看准网 related). Chinese non-mainstream coverage on AI热报 (airebao) and similar roundups landed around Oct 25, 2026, matching the HF upload.

Can you actually pull and run it?

Yes, commercially, with the usual ML caveats. The Hugging Face README front-matter sets license: apache-2.0; the API tag is license:apache-2.0. Weights are public (not gated), BF16, about 66 GB across 14 safetensors shards on the main tree — so a single consumer GPU is not the realistic serve path. The card’s SGLang and vLLM examples both use tensor parallel size 4. Languages declared: English and Chinese. A separate Nanbeige4.3-33B-Base repo exists for post-training from scratch.

Inference paths on the card: Hugging Face Transformers (trust_remote_code=True), SGLang, and vLLM. Chat template knobs matter for agent work:

Suggested sampling: agentic/tool tasks at temperature 1.0 / top_p 0.95 / up to 65,536 new tokens; reasoning/chat at 0.6 / 0.95 / up to 262,144. Max context: 524,288 tokens (512K).

Teacher → distill roadmap

Nanbeige4.3 positions 33B as the flagship teacher that will anchor distillation into smaller models (the card explicitly names Nanbeige4.3-3B as an example). If you only need a strong open ~30B agent today, pull 33B; if you are waiting for a laptop-class distill, that is still future work.

Editorial scorecard of Nanbeige4.3-33B vendor benches versus Qwen3.8-27B on agentic coding and cowork, with deploy notes

Vendor-reported scores at highest thinking effort versus Qwen3.8-27B, Muse-Glimmer-30B, and Gemma4-31B. Not independent third-party confirmation.

What the card claims against ~30B peers

Comparisons are against Qwen3.8-27B, Muse-Glimmer-30B, and Gemma4-31B, all at highest thinking effort, same harness/hparams per the card. Selected agentic coding highlights (Nanbeige vs Qwen):

Agentic cowork highlights:

Reasoning row on the card is competitive rather than dominant (GPQA Diamond 89.5 vs Qwen 89.2 / Gemma 91.3; AIME 2026 95.2). The story the lab wants you to hear is agentic coding + cowork, not pure STEM Olympiad.

Honest caveats

Bottom line for overseas engineers who can actually pull weights: Nanbeige4.3-33B is a rare Apache-2.0 ~30B-class open teacher aimed at coding agents and professional cowork, with a 512K window and runnable Transformers / SGLang / vLLM paths. Download it if you have the GPUs and want an open teacher before the small distill ships — and treat the scoreboard as the lab’s until you run your own harness.

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