How to use from the
Use from the
Transformers library
# Use a pipeline as a high-level helper
from transformers import pipeline

pipe = pipeline("text-generation", model="camgeodesic/olmo3-7b-instruct-only")
messages = [
    {"role": "user", "content": "Who are you?"},
]
pipe(messages)
# Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM

tokenizer = AutoTokenizer.from_pretrained("camgeodesic/olmo3-7b-instruct-only")
model = AutoModelForCausalLM.from_pretrained("camgeodesic/olmo3-7b-instruct-only")
messages = [
    {"role": "user", "content": "Who are you?"},
]
inputs = tokenizer.apply_chat_template(
	messages,
	add_generation_prompt=True,
	tokenize=True,
	return_dict=True,
	return_tensors="pt",
).to(model.device)

outputs = model.generate(**inputs, max_new_tokens=40)
print(tokenizer.decode(outputs[0][inputs["input_ids"].shape[-1]:]))
Quick Links

OLMo-3 7B Instruct-Only (GRPO)

Fine-tuned from allenai/OLMo-3-1025-7B using GRPO (Group Relative Policy Optimization) on instruction-following tasks.

Training Details

  • Base model: allenai/OLMo-3-1025-7B
  • Training method: GRPO with RL-Zero (no supervised warmup)
  • Dataset: allenai/Dolci-RLZero-IF-7B (IFEval instruction-following)
  • Config: if_valley_thinker โ€” valley length penalty (512โ€“4096 token sweet spot) + think token reward shaping
  • Chat template: OLMo thinker (prefills <think> tag for chain-of-thought reasoning)
  • Precision: bfloat16
  • Hardware: 2 nodes ร— 4 NVIDIA GH200 120GB GPUs (Isambard-AI)

Reward Components

Component Description
IFEval verifiable reward Binary per-constraint score for instruction-following
Valley length penalty Penalizes responses <512 or >4096 tokens (coeff: -0.001)
Think tag reward +0.125 for correct </think> closure
Think length penalty -0.1 if thinking block <10 words

Performance (late-stage averages)

Metric Value
IFEval correct rate 0.88
Training reward 6.36
Think word count ~886 words
Sequence length ~1353 tokens

Checkpoints

Each training checkpoint is available as a separate branch/revision:

  • main โ€” step 3800 (latest)
  • step_600 through step_3600 โ€” intermediate checkpoints (every 200 steps)
from transformers import AutoModelForCausalLM, AutoTokenizer

# Load latest
model = AutoModelForCausalLM.from_pretrained("camgeodesic/olmo3-7b-instruct-only")

# Load specific checkpoint
model = AutoModelForCausalLM.from_pretrained("camgeodesic/olmo3-7b-instruct-only", revision="step_2000")
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