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open-athena/
marinfold-exp117

Name: marinfold-exp117
Availability: InStock

transformers

safetensors

biology

protein-language-model

marinfold

endpoints_compatible

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MarinFold exp117 checkpoints

Selected checkpoints from the MarinFold contacts-v1 1.5B experiment tracked in Open-Athena/MarinFold#117. Loss is eval/tokenized/contacts-v1-val/loss, and only finished W&B runs were considered.

Both checkpoint formats are retained when available:

hf/ contains a Qwen3ForCausalLM Hugging Face safetensors export with the contacts-v1 tokenizer colocated with the weights.
checkpoints/ contains the original Levanter OCDBT checkpoint for training restart or re-export.

“Early-stop” denotes the lowest loss at an evaluation step for which a permanent Levanter checkpoint exists.

Checkpoint inventory

Epochs	Selection	W&B run	Loss	Step	Repository paths	Full GCS sources
8	Final + checkpoint-aligned early-stop winner	`prot-exp117-cv1-s02-1_5b-e8-lr3p162e-3-wd0p2-bs64-europe-west4`	2.713059	71,359	Levanter: `checkpoints/step-71359` HF: `hf/step-71359`	Levanter: `gs://marin-eu-west4/checkpoints/protein/prot-exp117-cv1-s02-1_5b-e8-lr3p162e-3-wd0p2-bs64-europe-west4/2026.07.13.02/checkpoints/step-71359/` HF: `gs://marin-eu-west4/checkpoints/protein/prot-exp117-cv1-s02-1_5b-e8-lr3p162e-3-wd0p2-bs64-europe-west4/2026.07.13.02/hf/step-71359/`
16	Final winner	`prot-exp117-cv1-s02-1_5b-e16-lr3p162e-3-wd0p2-bs256-europe-west4`	2.703709	35,679	Levanter: `checkpoints/step-35679` HF: `hf/step-35679`	Levanter: `gs://marin-eu-west4/checkpoints/protein/prot-exp117-cv1-s02-1_5b-e16-lr3p162e-3-wd0p2-bs256-europe-west4/2026.07.13.02/checkpoints/step-35679/` HF: `gs://marin-eu-west4/checkpoints/protein/prot-exp117-cv1-s02-1_5b-e16-lr3p162e-3-wd0p2-bs256-europe-west4/2026.07.13.02/hf/step-35679/`
16	Early-stop checkpoint winner	`prot-exp117-cv1-s02-1_5b-e16-lr3p162e-3-wd0p2-bs256-europe-west4`	2.696074	33,450	Levanter: `checkpoints/step-33450` HF: not available at this step	Levanter: `gs://marin-eu-west4/checkpoints/protein/prot-exp117-cv1-s02-1_5b-e16-lr3p162e-3-wd0p2-bs256-europe-west4/2026.07.13.02/checkpoints/step-33450/`

At 16 epochs, the same run wins both comparisons. Its earlier permanent checkpoint at step 33,450 has lower loss (2.696074) than its final checkpoint at step 35,679 (2.703709), so both checkpoints are retained.
The dated GCS layout component is intentionally omitted from repository paths.

open-athena/marinfold-exp117

MarinFold exp117 checkpoints

Checkpoint inventory

open-athena/
marinfold-exp117