burner22/numbat
♥ 385 · ↓ 10.2K
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♥ 385 · ↓ 10.2K
~14T param, 114 layers, hybrid GDN/MLA, MoE (1,224 experts, top-48 + 1 shared), NVFP4. Internal codename numbat, Anthropic's next Mythos-class training run. numbat is the codename referenced in the Claude Code source leak (Mar 2026). This is a checkpoint from that training run, pulled mid-pretraining.
The 772 shards total ~7.72 TB of tensor data. Each shard is safetensors format, under 10.6 GB per file.
Excerpt from the model card on Hugging Face ↗.
burner22/numbat was first seen on Hugging Face · Trending models on Nov 1, 2026. Since then it has appeared in 164 checks on 8 different days. Its best position was #5 of 30, reached on Nov 6, 11:42 UTC. It is #8 right now, slipping from #7 to #8 over the last 6 checks. The same link also trended on Hacker News, which raises its cross-platform score.
Position on Hugging Face · Trending models at every check (lower is better).
Best rank per day (UTC).
🔥 as reported by Hugging Face.
| List | Best | Days | Checks | Last seen |
|---|---|---|---|---|
| Hugging Face · Trending models | #5 | 8 | 164 | |
| YHacker News · Front page Alleged Mythos Class Anthropic Checkpoint Leak | same link | |||
Archived daily, weekly and monthly lists that include this entry.
Yes. As of Nov 8, 14:42 UTC it is #8, slipping from #7 to #8 over the last 6 checks.
#5 on Hugging Face · Trending models, on Nov 6, 11:42 UTC. Trendoday checks this list every 60 minutes.
It was first seen on Nov 1, 2026 and has been on the list on 8 days (164 checks) since.