Family OLMo · 7B parameters

OLMo 3 7B Think (SFT)

SFT “thinking” fine-tune of OLMo 3 7B: step-by-step reasoning, 16k context, ~4.2 GB VRAM in Q4. 100% open, Apache 2.0 license.

🇺🇸 zimplex·License Apache 2.0·Context 15.625k tokens·Output 2026-08-28·Fits within the 128 GB of the GIGABYTE AI TOP ATOM← Catalog

01What it can do

Strengths
  • Explicit step-by-step reasoning (chain of thought)
  • Dense 7B: fits on an 8 GB GPU in Q4 (~4.2 GB)
  • 100% open OLMo base (weights + data + code)
  • Permissive Apache 2.0 license
Limitations to know
  • —Community fine-tune, unofficial Allen AI model
  • —Modest 16k context compared with recent 128k models
  • —No official Ollama tag (deployment via Hugging Face)
Architecture
Dense 7B transformer (base OLMo 3 7B, Allen AI)
Training
SFT fine-tune of the OLMo 3 7B base focused on “thinking”: EOS token fix, 16k window, 3 epochs.
Ideal for
Local reasoningChain-of-thought chat8 GB GPU

04Install

Install Ollama for your OS. Check the model and its quantization before downloading. Start with 4096 tokens of context, then check placement with ollama ps. A command below is not proof that a test was run on your machine.

$# HuggingFace : zimplex/olmo3-7b-think-sft-eosfix-16k-3ep-euc
⚠
First download: between 2 and 40 GB depending on the selected quantization. Plan for sufficient disk space; a stable connection is recommended. Subsequent launches are instant.

02Required memory

Approximate GPU VRAM required to run this model, including 4k tokens of context overhead. For a longer context, add ~1 GB per 8k-token increment.

Q4_K_M
The lightest, ~5% loss
4.2 GB
Q5_K_M
Good quality/size compromise
5 GB
Q8_0
Nearly indistinguishable from FP16
8 GB
FP16
Full precision — server use
15 GB
Fallback CPU · If you don't have a GPU, allow 9 GB of RAM minimum to run this model at reduced speed.

What hardware do you need for OLMo 3 7B Think (SFT)?

To run OLMo 3 7B Think (SFT) locally with Q4 quantization, you need about 4.2 GB of VRAM. An option to compare: RTX 5060 Ti 16GB (ASUS Prime) — leave some headroom for the system and context; check engine compatibility with the GPU.

Current offer: RTX 5060 Ti 16GB (ASUS Prime)
AmazonSee price →

Affiliate links — possible commission at no extra cost to you; independent recommendations. As an Amazon Associate, BestLLMfor earns from qualifying purchases.

On the go: OLMo 3 7B Think (SFT) also runs on a RTX laptop PC (16 GB of VRAM) →

This model in your private ChatGPT, without the cloud

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03Expected speed

Tokens generated per second in Q4_K_M, 4k context. Beyond 20 t/s, reading is comfortable. Below 10 t/s, that's just for testing.

Entry-level
~32t/s
GTX 1650, RX 6600, MBA M2 8GB
Mid-range
~50t/s
RTX 4060, 4070, MBP M3 Pro
High-end
~75t/s
RTX 4090, M4 Max, Radeon 7900