Thinking Machines - Miles

Miles ships a native Megatron recipe for Inkling, Thinking Machines Lab’s 975 B / 41 B-active multimodal mixture-of-experts model: local and global relative attention, the residual ShortConv, the shared-sink router and experts, and the image and audio encoders. The same backend drives both full-parameter and LoRA RL.

Variants

Model	Active / Total	Layers	HF ID	Recipe
Inkling	41 B / 975 B	66	thinkingmachines/Inkling	Inkling
Inkling-Small	12 B / 276 B	42	thinkingmachines/Inkling-Small	Inkling-Small

Fastest path to train

Inkling needs 16 nodes of 4× GB300 and the radixark/miles:inkling image:

cd /root/miles
python scripts/run_inkling.py train \
   --model-name Inkling --train-mode full --task dapo_math \
   --num-nodes 16 --num-gpus-per-node 4

See the Inkling page for the architecture summary, HF → Megatron conversion, validated parallelism layouts, training attention backends, LoRA RL, and multimodal RL.