Instructions to use HopitAI/hopper with libraries, inference providers, notebooks, and local apps. Follow these links to get started.
- Libraries
- PEFT
How to use HopitAI/hopper with PEFT:
from peft import PeftModel from transformers import AutoModelForCausalLM base_model = AutoModelForCausalLM.from_pretrained("Qwen/Qwen3.5-4B") model = PeftModel.from_pretrained(base_model, "HopitAI/hopper") - Notebooks
- Google Colab
- Kaggle
Card: Hopper 12B (trained) Decision Index 47.52
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README.md
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| Model | Where | Base model | Adapter | Licence | Status |
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| **Hopper (4B)** | `main` (this page) | [`Qwen/Qwen3.5-4B`](https://huggingface.co/Qwen/Qwen3.5-4B) @ `851bf6e` | LoRA rank 16 | research and demo use only¹ | [JevBench](https://benchmarkheaven.com/jev-models) **67.5, #16** (v1.5.5, 2 Oct 2026) |
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| **Hopper 12B (trained)** | branch [`hopper-12b`](https://huggingface.co/HopitAI/hopper/tree/hopper-12b) @ `4b605f2` | [`google/gemma-4-12B-it`](https://huggingface.co/google/gemma-4-12B-it) @ `707f0a3` | LoRA rank 32, served unmerged | Apache-2.0 | requested on JevBench ([issue #164](https://github.com/fstandhartinger/jevbench/issues/164)) |
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¹ The 4B adapter's training data included passages from RACE, which is released for non-commercial research only.
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Do not use it commercially. See [Licence and research-only notice](#licence-and-research-only-notice).
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| Model | Where | Base model | Adapter | Licence | Status |
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| --- | --- | --- | --- | --- | --- |
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| **Hopper (4B)** | `main` (this page) | [`Qwen/Qwen3.5-4B`](https://huggingface.co/Qwen/Qwen3.5-4B) @ `851bf6e` | LoRA rank 16 | research and demo use only¹ | [JevBench](https://benchmarkheaven.com/jev-models) **67.5, #16** (v1.5.5, 2 Oct 2026) |
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| **Hopper 12B (trained)** | branch [`hopper-12b`](https://huggingface.co/HopitAI/hopper/tree/hopper-12b) @ `4b605f2` | [`google/gemma-4-12B-it`](https://huggingface.co/google/gemma-4-12B-it) @ `707f0a3` | LoRA rank 32, served unmerged | Apache-2.0 | [Decision Index](https://huggingface.co/datasets/HopitAI/hopper-12b-decision-index-results) **47.52** (0.2.1, [PR #63](https://github.com/apolinario/decision-index/pull/63)); requested on JevBench ([issue #164](https://github.com/fstandhartinger/jevbench/issues/164)) |
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¹ The 4B adapter's training data included passages from RACE, which is released for non-commercial research only.
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Do not use it commercially. See [Licence and research-only notice](#licence-and-research-only-notice).
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