---
title: burner22/numbat
url: https://recentmodel.com/models/burner22/numbat/
status: just landed
published: 2026-10-23T01:37:02Z
updated: 2026-11-02T00:25:15Z
source: https://huggingface.co/burner22/numbat
---

# burner22/numbat

Internal codename numbat, Anthropic's next Mythos-class training run. numbat is the codename referenced in the Claude Code source leak (Mar 2026). Dense, 6849B params. Context: 128K tokens (config). Vendor-reported: "~14T param, 114 layers, hybrid GDN/MLA, MoE (1,224 experts, top-48 + 1 shared), NVFP4."

- Vendor-reported: ~14T param, 114 layers, hybrid GDN/MLA, MoE (1,224 experts, top-48 + 1 shared), NVFP4.

- **Org:** burner22
- **Released:** 2026-10-23
- **Status:** just landed
- **License:** unknown
- **Parameters:** 6849.4B
- **Architecture:** dense · NumbatForCausalLM
- **Context:** 131,072 tokens
- **Signal:** 197 HF likes · 5846 downloads

## Runs on

estimate from params; sizing calculation, not tested.

- Q4 ~4692.8 GB (estimated): no listed device
- Q8 ~7860.7 GB (estimated): no listed device
- FP16 ~14282.0 GB (estimated): no listed device

## Links

- [Hugging Face](https://huggingface.co/burner22/numbat)