211 lines
13 KiB
Markdown
211 lines
13 KiB
Markdown
---
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license: llama3.1
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language:
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- el
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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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- text-generation-inference
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base_model:
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- ilsp/Llama-Krikri-8B-Base
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---
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🚨 **PLEASE USE THE OFFICIAL QUANTIZED VERSIONS: [GGUF](https://huggingface.co/ilsp/Llama-Krikri-8B-Instruct-GGUF) OR REQUEST A SPECIFIC ONE** 🚨
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🚨 *There is no guarantee that you are using the latest improved versions from 3rd party quantizations as the model's weights are getting reuploaded!* 🚨
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# Llama-Krikri-8B-Instruct: An Instruction-tuned Large Language Model for the Greek language
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<div align="center">
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<img src="https://huggingface.co/ilsp/Llama-Krikri-8B-Instruct/resolve/main/KriKri_Logo-eng_54307d80-ee25-49f9-9204-0ce774499fbc.svg?raw=true" width="60%" alt="Krikri" />
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</div>
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Following the release of [Meltemi-7B](https://huggingface.co/ilsp/Meltemi-7B-v1) on the 26th March 2024, we are happy to welcome Krikri to the family of ILSP open Greek LLMs.
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Krikri is built on top of [Llama-3.1-8B](https://huggingface.co/meta-llama/Llama-3.1-8B), extending its capabilities for Greek through continual pretraining on a large corpus of high-quality and locally relevant Greek texts. We present **Llama-Krikri-8B-Instruct**, along with the base model, [Llama-Krikri-8B-Base](https://huggingface.co/ilsp/Llama-Krikri-8B-Base)
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<!--  -->
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# Model Information
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## Base Model
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- Vocabulary extension of the Llama-3.1 tokenizer with Greek tokens
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- 128k context length (approximately 80,000 Greek words)
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- We extend the pretraining of Llama-3.1-8B with added proficiency for the Greek language, by utilizing a large training corpus.
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* This corpus includes 56.7 billion monolingual Greek tokens, constructed from publicly available resources.
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* Additionaly, to mitigate catastrophic forgetting and ensure that the model has bilingual capabilities, we use additional sub-corpora with monolingual English texts (21 billion tokens) and Greek-English parallel data (5.5 billion tokens).
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* The training corpus also contains 7.8 billion math and code tokens.
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* This corpus has been processed, filtered, and deduplicated to ensure data quality and is outlined below:
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| Sub-corpus | # Tokens | Percentage |
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|-----------|------------------|------------|
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| Greek | 56.7 B | 62.3 % |
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| English | 21.0 B | 23.1 % |
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| Parallel | 5.5 B | 6.0 % |
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| Math/Code | 7.8 B | 8.6 % |
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| **Total** | **91 B** | **100%** |
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Chosen subsets of the 91 billion corpus were upsampled resulting in a size of **110 billion tokens**.
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## Instruct Model
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Llama-Krikri-8B-Instruct is the result of post-training Llama-Kriki-8B-Base and features:
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- Enhanced chat capabilities and instruction-following in both Greek and English.
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- Document translation from Greek to English, French, German, Italian, Portuguese, Spanish and vice versa.
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- Great performance on generation, comprehension, and editing tasks, such as summarization, creative content creation, text modification, entity recognition, sentiment analysis, etc.
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- Domain-specifc expertise for specialized legal, financial, medical, and scientific applications.
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- Retrieval-Augmented Generation (RAG) utilizing multiple documents with 128k context length.
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- Improved coding and agentic capabilities with correct formatting and tool use.
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- Conversion or structured extraction (e.g., XML, JSON) in data-to-text & text-to-data settings.
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- Analytical thinking and Chain-of-Thought (CoT) reasoning for problem-solving.
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## Post-training Methodology
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We used a multi-stage process in order to build Llama-Krikri-8B-Instruct which includes:
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- 2-stage Supervised Fine-Tuning with a combination of Greek & English instruction-response pairs (& multi-turn conversations)
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- **Stage 1**: **856,946** instruction-response pairs (371,379 Greek + 485,567 English)
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- **Stage 2**: **638,408** instruction-response pairs (279,948 Greek + 358,460 English)
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- Alignment with a combination of Greek & English preference triplets (Instruction - Chosen Response - Rejected Response)
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- **Length Normalized DPO**: **92,394** preference triplets (47,132 Greek + 45,262 English)
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## Post-training Data Construction
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To build the SFT & DPO data, we utilized various methodologies including:
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- Collecting existing high-quality datasets such as [Tulu 3](https://huggingface.co/datasets/allenai/tulu-3-sft-mixture), [SmolTalk](https://huggingface.co/datasets/HuggingFaceTB/smoltalk), [MAGPIE Ultra](https://huggingface.co/datasets/argilla/magpie-ultra-v1.0), [Orca Agent Instruct](https://huggingface.co/datasets/microsoft/orca-agentinstruct-1M-v1), [IFEval Like Data](https://huggingface.co/datasets/argilla/ifeval-like-data), [UltraFeedback](https://huggingface.co/datasets/HuggingFaceH4/ultrafeedback_binarized), [NVIDIA HelpSteer2](https://huggingface.co/datasets/nvidia/HelpSteer2), [Intel Orca](https://huggingface.co/datasets/argilla/distilabel-intel-orca-dpo-pairs), [UltraMedical](https://huggingface.co/datasets/TsinghuaC3I/UltraMedical-Preference), and other datasets focused on safety, truthfulness, and instruction-following.
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- Translating various data into Greek using an in-house translation tool.
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- Regenerating translated data and contrasting the translated with the regenerated responses (i.e., for creating preference triplets).
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- Distilling (with the MAGPIE methodology) models which exhibit strong performance in Greek, such as [Gemma 2 27B IT](https://huggingface.co/google/gemma-2-27b-it).
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- Scoring data with the [Skywork Reward Gemma 2 27B v0.2](https://huggingface.co/Skywork/Skywork-Reward-Gemma-2-27B-v0.2) Reward Model and filtering using rule-based filters.
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- Creating data for sentence and document translation using high-quality parallel corpora mainly from [ELRC-SHARE](https://elrc-share.eu/).
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- Synthetically extracting question-answer pairs and multi-turn dialogues from diverse sources such as Wikipedia, EUR-LEX, Greek School Books, and Kallipos.
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# How to use
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## With Transformers
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```python
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from transformers import AutoModelForCausalLM, AutoTokenizer
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device = "cuda"
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model = AutoModelForCausalLM.from_pretrained("ilsp/Llama-Krikri-8B-Instruct")
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tokenizer = AutoTokenizer.from_pretrained("ilsp/Llama-Krikri-8B-Instruct")
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model.to(device)
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system_prompt = "Είσαι το Κρικρί, ένα εξαιρετικά ανεπτυγμένο μοντέλο Τεχνητής Νοημοσύνης για τα ελληνικα και εκπαιδεύτηκες από το ΙΕΛ του Ε.Κ. \"Αθηνά\"."
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user_prompt = "Σε τι διαφέρει ένα κρικρί από ένα λάμα;"
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messages = [
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{"role": "system", "content": system_prompt},
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{"role": "user", "content": user_prompt},
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]
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prompt = tokenizer.apply_chat_template(messages, add_generation_prompt=True, tokenize=False)
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input_prompt = tokenizer(prompt, return_tensors='pt').to(device)
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outputs = model.generate(input_prompt['input_ids'], max_new_tokens=256, do_sample=True)
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print(tokenizer.batch_decode(outputs)[0])
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```
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## With OpenAI compatible server via vLLM
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```bash
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vllm serve ilsp/Llama-Krikri-8B-Instruct \
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--enforce-eager \
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--dtype 'bfloat16' \
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--api-key token-abc123
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```
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Then, the model can be used through Python using:
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```python
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from openai import OpenAI
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api_key = "token-abc123"
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base_url = "http://localhost:8000/v1"
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client = OpenAI(
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api_key=api_key,
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base_url=base_url,
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)
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system_prompt = "Είσαι ένα ανεπτυγμένο μεταφραστικό σύστημα που απαντάει με λίστες Python. Δεν γράφεις τίποτα άλλο στις απαντήσεις σου πέρα από τις μεταφρασμένες λίστες."
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user_prompt = "Δώσε μου την παρακάτω λίστα με μεταφρασμένο κάθε string της στα ελληνικά: ['Ethics of duty', 'Postmodern ethics', 'Consequentialist ethics', 'Utilitarian ethics', 'Deontological ethics', 'Virtue ethics', 'Relativist ethics']"
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messages = [
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{"role": "system", "content": system_prompt},
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{"role": "user", "content": user_prompt},
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]
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response = client.chat.completions.create(model="ilsp/Llama-Krikri-8B-Instruct",
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messages=messages,
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temperature=0.0,
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top_p=0.95,
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max_tokens=8192,
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stream=False)
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print(response.choices[0].message.content)
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# ['Ηθική καθήκοντος', 'Μεταμοντέρνα ηθική', 'Συνεπειοκρατική ηθική', 'Ωφελιμιστική ηθική', 'Δεοντολογική ηθική', 'Ηθική αρετών', 'Σχετικιστική ηθική']
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```
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# Evaluation
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In the table below, we report the scores for our chat evaluation suite which includes:
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- [Greek IFEval](https://huggingface.co/datasets/ilsp/ifeval_greek) (strict average)
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- [English IFEval](https://huggingface.co/datasets/google/IFEval) (strict average)
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- [Greek MT-Bench](https://huggingface.co/datasets/ilsp/mt-bench-greek) using gpt-4o-2024-08-06 as the judge model.
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- [English MT-Bench](https://huggingface.co/datasets/HuggingFaceH4/mt_bench_prompts) using gpt-4o-2024-08-06 as the judge model.
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We can observe that *Llama-Krikri-8B-Instruct exhibits the strongest performance* in instruction following for both Greek and English across all the models we tested. In particular, it surpasses Llama-3.1-8B-Instruct by **+21.7%** and **+7.3%** on the Greek and English IFEval respectively.
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It also exhibits **the strongest chat capabilities in the Greek MT-Bench benchmark** (+0.28 compared to Aya Expanse 8B), while also being very competitive in the English variant of the MT-Bench benchmark.
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| | IFEval EL (strict avg) | IFEval EN (strict avg) | MT-Bench EL | MT-Bench EN |
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|---------------- |---------------- |----------------- |------------|------------|
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| Qwen 2.5 7B Instruct | 46.2% | 74.8% | 5.83 | **7.87** |
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| EuroLLM 9B Instruct | 51.3% | 64.5% | 5.98 | 6.27 |
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| Aya Expanse 8B | 50.4% | 62.2% | 7.68 | 6.92 |
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| Meltemi 7B v1.5 Instruct | 32.7% | 41.2% | 6.25 | 5.46 |
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| Llama-3.1-8B Instruct | 45.8% | 75.1% | 6.46 | 7.25 |
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| **Llama-Krikri-8B Instruct** | **67.5%** | **82.4%** | **7.96** | 7.21 |
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We also used the [Arena-Hard-Auto](https://huggingface.co/datasets/lmarena-ai/arena-hard-auto-v0.1) automatic evaluation tool, as well the translated (and post-edited) version for Greek that is publicly available [here](https://huggingface.co/datasets/ilsp/m-ArenaHard_greek). We report 2 scores for Arena-Hard-Auto:
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- No Style Control: The original version of the benchmark.
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- With Style Control: The benchmark with style control methods for Markdown elements. You can read more about the methodology and technical background in this [blogspot](https://lmsys.org/blog/2024-08-28-style-control/).
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Below, we show the scores for the Greek version of Arena-Hard-Auto for various open and closed chat models that were determined using **gpt-4o-2024-08-06 as the judge model** and **gpt-4o-mini-2024-07-18 as the baseline model** (i.e., by default 50% score).
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Llama-Krikri-8B Instruct exhibits very strong chat capabilities by scoring **higher than models over 8 times its size** (such as Llama-3.1-70B Instruct) and is also **competitive with closed-source** (e.g., GPT-4o-Mini) and **highly-performant open-source models** (e.g., Gemma 2 27B IT & Aya Expanse 32B).
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Below, we show the scores for the original Arena-Hard-Auto dataset for various open and closed chat models. We followed the original methodology by using **gpt-4-1106-preview as the judge model** and **gpt-4-0314 as the baseline model**.
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Llama-Krikri-8B Instruct performs very well in the English variant of Arena-Hard-Auto as well, since we can observe that it is **competitive with similarly sized LLMs** and that it **improves upon Llama-3.1-8B Instruct by +24.5% / +16%** (No style control / With style control).
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***Please note** that judge models are biased towards student models trained on distilled data from them. You can read more [here](https://arxiv.org/pdf/2502.01534?).
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**If you want to dig deeper, read more in our [paper](https://arxiv.org/abs/2505.13772).**
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# Acknowledgements
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The ILSP team utilized Amazon's cloud computing services, which were made available via GRNET under the [OCRE Cloud framework](https://www.ocre-project.eu/), providing Amazon Web Services for the Greek Academic and Research Community.
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# Citation
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```
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@misc{roussis2025krikriadvancingopenlarge,
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title={Krikri: Advancing Open Large Language Models for Greek},
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author={Dimitris Roussis and Leon Voukoutis and Georgios Paraskevopoulos and Sokratis Sofianopoulos and Prokopis Prokopidis and Vassilis Papavasileiou and Athanasios Katsamanis and Stelios Piperidis and Vassilis Katsouros},
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year={2025},
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eprint={2505.13772},
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archivePrefix={arXiv},
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primaryClass={cs.CL},
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url={https://arxiv.org/abs/2505.13772},
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}
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``` |