209 lines
7.2 KiB
Markdown
209 lines
7.2 KiB
Markdown
---
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license: apache-2.0
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viewer: false
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datasets:
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- HuggingFaceFW/fineweb-edu
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- HuggingFaceFW/dclm_100BT-shuffled
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language:
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- en
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pipeline_tag: text-generation
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library_name: transformers
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tags:
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- small
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- supra
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- supra2
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- qwen3
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- sota
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---
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<h1 align="center">Supra2-100M Base</h1>
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<p align="center">
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Base model of new Supra2 family • 100M Parameters • 1K Context - extended to 2k
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</p>
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**Supra2-100M Base** is a 100M-parameter decoder-only language model pretrained from scratch by **SupraLabs** on 30B tokens of English web text. It uses the **Qwen3** architecture with a custom 32,768-token tokenizer.
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This is a **base model**. It has *not* been instruction-tuned, chat-tuned, or aligned in any way.
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---
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## **Let the model speak - a sample**
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Prompt: "Artificial intelligence is "
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Completion:
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```plaintext
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100% efficient, yet it still requires a lot of resources.
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We are in the midst of a major transition from the traditional computer and software to artificial intelligence.
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It is very important to have a strategy in mind. This is not only important for the companies that use it, but also for individuals and organizations that use it.
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There is a huge difference between the two approaches. The artificial intelligence approach is based on computers and the software.
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It has been proven that the artificial intelligence approach is more efficient and has a much better performance.
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The benefits of artificial intelligence are also known to be immense. It is a powerful tool that can improve productivity, increase efficiency, and reduce costs.
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It can be used for a wide range of tasks, from customer service to product development.
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It is also used for various other tasks, such as sales, marketing, and customer service.
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It is also used for various other tasks, such as customer service and product development.
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There are a number of different types of artificial intelligence. These include machine learning, natural language processing, and neural networks.
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The main advantage of using artificial intelligence is that it is more efficient and can be used for a wide range of tasks.
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It is also[...]
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```
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---
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## **Evaluation & Benchmarks**
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All benchmarks were evaluated using the EleutherAI LM-Eval Harness.
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| Model | PIQA (acc_norm) | HellaSwag (acc_norm) | ARC-Easy (acc_norm) | ARC-Challenge (acc_norm) |
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| :--- | :---: | :---: | :---: | :---: |
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| Supra-50M-Base | 0.62 | 0.32 | 0.46 | 0.25 |
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| Supra2-100M Base | 0.65 | 0.36 | 0.48 | 0.25 |
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| BananaMind-2-Pro-Preview-EXP | 0.67 | 0.40 | 0.51 | 0.27 |
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| GPT-X-125M | 0.65 | 0.37 | 0.51 | 0.25 |
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| OpenAI GPT-2 Small | 0.62 | 0.31 | 0.39 | 0.22 |
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---
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## **Model Details**
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| | |
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| ----- | ----- |
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| **Developed by** | SupraLabs |
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| **Model type** | Causal decoder-only transformer (Qwen3) |
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| **Language** | English |
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| **Parameters** | 100.7M total / 75.5M non-embedding |
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| **Training tokens** | 30B (300 tokens per parameter) |
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| **Context length** | 1,024 (trained) / 2,048 (config maximum, untested) |
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| **Precision** | bfloat16 |
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| **License** | Apache 2.0 |
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### **Architecture**
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| Hyperparameter | Value |
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| ----- | ----- |
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| Hidden size | 768 |
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| Layers | 12 |
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| Attention heads | 12 (GQA, 4 KV heads) |
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| Head dim | 64 |
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| Intermediate size (SwiGLU) | 2048 |
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| Vocab size | 32,768 |
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| Positional encoding | RoPE θ=10,000 |
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| Normalization | RMSNorm, ε=10\-6 (incl. QK-Norm) |
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| Tied embeddings | Yes |
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| Sliding window | Disabled |
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| Attention implementation | SDPA |
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---
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## **Training Data**
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| Source | Share | Approx. tokens |
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| ----- | ----- | ----- |
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| `HuggingFaceFW/fineweb-edu` (`sample-350BT`) | 70% | 21B |
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| `HuggingFaceFW/dclm_100BT-shuffled` | 30% | 9B |
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Documents were tokenized with the custom `supra2-tokenizer`, concatenated into a flat `uint16` token stream, and packed into contiguous 1,024-token chunks (no padding, no document masking — sequences may cross document boundaries).
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---
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## **Training Procedure**
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| Setting | Value |
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| ----- | ----- |
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| Optimizer | AdamW (fused), β1=0.9, β2=0.95, ε=10−8 |
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| Peak learning rate | 1×10-3 |
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| LR schedule | WSD (Warmup–Stable–Decay), `1-sqrt` decay to 0 |
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| Total steps | 114k |
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| Micro batch size | 16 |
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| Gradient accumulation | 16 |
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| Effective batch | 256 sequences \= **262,144 tokens/step** |
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| Weight decay | 0.1 |
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| Gradient clipping | 1.0 |
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| Auxiliary loss | Router-free **z-loss**, coefficient 10\-4 |
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| Compile | `torch.compile` enabled |
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| Hardware | 1× RTX 5090 (32GB) |
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---
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## **Usage**
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```python
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import torch
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from transformers import AutoModelForCausalLM, AutoTokenizer
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model_id = "SupraLabs/Supra2-100M"
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tokenizer = AutoTokenizer.from_pretrained(model_id)
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model = AutoModelForCausalLM.from_pretrained(
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model_id,
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torch_dtype=torch.bfloat16,
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device_map="auto",
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)
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model.eval()
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prompt = "Artificial intelligence is "
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inputs = tokenizer(prompt, return_tensors="pt").to(model.device)
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with torch.no_grad():
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out = model.generate(
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**inputs,
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max_new_tokens=256,
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do_sample=True,
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temperature=0.3,
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top_p=0.85,
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top_k=15,
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no_repeat_ngram_size=3,
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repetition_penalty=1.1,
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)
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print(tokenizer.decode(out[0], skip_special_tokens=True))
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```
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### **Tokenizer notes**
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The tokenizer ships with a **ChatML** template and reserved special tokens (`<|im_start|>`, `<|im_end|>`, `<think>`, `<tool_call>`, `<|reserved_0..15|>`, …). These exist so that downstream fine-tunes can adopt them without resizing embeddings — **the base model has never seen them in training** and will not behave sensibly if you apply the chat template.
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---
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## **Intended Use**
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**Intended:**
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* Research on small-scale pretraining, scaling behavior, and data mixtures
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* A cheap starting point for SFT / instruction tuning / domain adaptation
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* Educational use, ablations, and fast iteration on limited hardware
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**Not intended:**
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* Any production or user-facing deployment
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* Factual question answering, advice, or decision support
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* Non-English text (essentially untrained; only supports english\!)
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---
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## **Limitations and Bias**
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* **Small.** At 100M parameters, factual recall, reasoning, arithmetic, and long-range coherence are weak. Expect frequent hallucination and topic drift.
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* **Base model.** No RLHF, no safety tuning, no refusal behavior. It will continue whatever text you give it, including harmful or offensive prompts.
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* **Web-derived data.** FineWeb-Edu and DCLM are filtered CommonCrawl derivatives and carry the biases, stereotypes, and factual errors of the open web.
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* **Short context.** Trained exclusively at 1,024 tokens. The config allows 2,048, but extrapolation beyond 1,024 is untested and likely degraded.
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* **No document masking.** Attention could cross document boundaries within a packed chunk, which slightly blurs document independence.
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* **English only.**
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---
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## **What comes next?**
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We are already training the next models in the Supra2-family:
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- Supra2-Nano (800k params)
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- Supra2-Small (\~1.3M params)
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- Supra2-Medium (25M params)
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- Supra2-IMG: our SOTA small text-to-image model
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---
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*© SupraLabs 2026* |