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Models · olmo

OLMo 3 32B Instruct

Open AI2 · 2025-11-20 · Apache-2.0

AI2's first 32B fully open frontier model, released November 20 2025 alongside a 7B and Base, Think, Instruct, and RL-Zero variants. Built on the Dolma 3 9.3T-token corpus (5.9T used for pretraining) and the Dolci post-training suite. All weights, data descriptions, intermediate checkpoints, and code released.

Architecture

tokens in Embedding vocab not disclosed × N layers Grouped-Query Attention RoPE context 65,536 tokens Dense MLP SwiGLU activation (standard) 32B active params Output projection tokens out
Schema-generated from data/models.yaml. Every label is auditable against the model's sources.

Specs

Architecture
dense
Total params
32B
Active params
32B
Context window
66K tokens
Attention
gqa
Position encoding
rope
Pretraining tokens
6.0T
Post-training
sft, dpo, rlvr
OSI-approved
yes
Data released
yes
Training code
released

Benchmarks

Each score carries the date it was published; we never infer or interpolate missing scores.

General reasoning

MMLU 85.4 as of 2025-11-20 source ↗

Math

MATH 96.1 as of 2025-11-20 source ↗
AIME 2024 76.8 as of 2025-11-20 source ↗

Held-out / arena

IFEval 89.0 as of 2025-11-20 source ↗

Available quantizations

GGUF llama.cpp's container; the common local format, k-quants from Q2 to Q8. runs on llama.cpp, Ollama
AWQ Activation-aware 4-bit weight quantization for GPU serving. runs on vLLM, SGLang
GPTQ Post-training 4-bit weight quantization for GPU serving. runs on vLLM, SGLang, Transformers
MLX Apple MLX 4/8-bit layout for Apple silicon. runs on Apple MLX
FP8 8-bit float, frequently a native release on Hopper / Blackwell GPUs. runs on vLLM, SGLang, TensorRT-LLM

Verified via the Hugging Face model tree ↗. Community quantizations change over time; the families shown are those with published weights at audit time.

Notable innovations

  • · [object Object]
  • · Four variant tracks (Base, Think, Instruct, RL-Zero)
  • · RL-Zero pathway openly released
  • · Dolma 3 and Dolci stacks public

Lineage

AI2's first fully open 32B frontier model; built on OLMo 3-Base, a new pretrain in the OLMo 3 family rather than a fine-tune of OLMo 2.

Sources