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	---
	library_name: transformers
	license: gemma
	extra_gated_heading: Access RecurrentGemma on Hugging Face
	extra_gated_prompt: To access RecurrentGemma on Hugging Face, you’re required to review
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	---

	# RecurrentGemma Model Card

	Model Page: [RecurrentGemma]( https://ai.google.dev/gemma/docs/recurrentgemma/model_card)

	This model card corresponds to the 2B instruction version of the RecurrentGemma model. You can also visit the model card of the [2B base model](https://huggingface.co/google/recurrentgemma-2b).

	Resources and technical documentation:

	* [Responsible Generative AI Toolkit](https://ai.google.dev/responsible)
	* [RecurrentGemma on Kaggle](https://www.kaggle.com/models/google/recurrentgemma)

	Terms of Use: [Terms](https://www.kaggle.com/models/google/recurrentgemma/license/consent/verify/huggingface?returnModelRepoId=google/recurrentgemma-2b-it)

	Authors: Google

	## Model information


	## Usage

	Below we share some code snippets on how to get quickly started with running the model. First make sure to `pip install --upgrade git+https://github.com/huggingface/transformers.git, then copy the snippet from the section that is relevant for your usecase.

	### Running the model on a single / multi GPU

	```python
	from transformers import AutoTokenizer, AutoModelForCausalLM

	tokenizer = AutoTokenizer.from_pretrained("google/recurrentgemma-2b-it")
	model = AutoModelForCausalLM.from_pretrained("google/recurrentgemma-2b-it", device_map="auto")

	input_text = "Write me a poem about Machine Learning."
	input_ids = tokenizer(input_text, return_tensors="pt").to("cuda")

	outputs = model.generate(**input_ids)
	print(tokenizer.decode(outputs[0]))
	```

	### Chat Template

	The instruction-tuned models use a chat template that must be adhered to for conversational use.
	The easiest way to apply it is using the tokenizer's built-in chat template, as shown in the following snippet.

	Let's load the model and apply the chat template to a conversation. In this example, we'll start with a single user interaction:

	```py
	from transformers import AutoTokenizer, AutoModelForCausalLM
	import transformers
	import torch
	model_id = "google/recurrentgemma-2b-it"
	dtype = torch.bfloat16
	tokenizer = AutoTokenizer.from_pretrained(model_id)
	model = AutoModelForCausalLM.from_pretrained(
	model_id,
	device_map="cuda",
	torch_dtype=dtype,
	)
	chat = [
	{ "role": "user", "content": "Write a hello world program" },
	]
	prompt = tokenizer.apply_chat_template(chat, tokenize=False, add_generation_prompt=True)
	```

	At this point, the prompt contains the following text:

	```
	<bos><start_of_turn>user
	Write a hello world program<end_of_turn>
	<start_of_turn>model
	```

	As you can see, each turn is preceded by a `<start_of_turn>` delimiter and then the role of the entity
	(either `user`, for content supplied by the user, or `model` for LLM responses). Turns finish with
	the `<end_of_turn>` token.

	You can follow this format to build the prompt manually, if you need to do it without the tokenizer's
	chat template.

	After the prompt is ready, generation can be performed like this:

	```py
	inputs = tokenizer.encode(prompt, add_special_tokens=False, return_tensors="pt")
	outputs = model.generate(input_ids=inputs.to(model.device), max_new_tokens=150)
	print(tokenizer.decode(outputs[0]))
	```

	### Model summary

	#### Description

	RecurrentGemma is a family of open language models built on a [novel recurrent
	architecture](https://arxiv.org/abs/2402.19427) developed at Google. Both
	pre-trained and instruction-tuned versions are available in English.

	Like Gemma, RecurrentGemma models are well-suited for a variety of text
	generation tasks, including question answering, summarization, and reasoning.
	Because of its novel architecture, RecurrentGemma requires less memory than
	Gemma and achieves faster inference when generating long sequences.

	#### Inputs and outputs

	* Input: Text string (e.g., a question, a prompt, or a document to be
	summarized).
	* Output: Generated English-language text in response to the input (e.g.,
	an answer to the question, a summary of the document).

	#### Citation

	```none
	@article{recurrentgemma_2024,
	title={RecurrentGemma},
	url={},
	DOI={},
	publisher={Kaggle},
	author={Griffin Team, Soham De, Samuel L Smith, Anushan Fernando, Alex Botev, George-Christian Muraru, Ruba Haroun, Leonard Berrada et al.},
	year={2024}
	}
	```

	### Model data

	#### Training dataset and data processing

	RecurrentGemma uses the same training data and data processing as used by the
	Gemma model family. A full description can be found on the [Gemma model
	card](https://ai.google.dev/gemma/docs/model_card#model_data).

	## Implementation information

	### Hardware and frameworks used during training

	Like
	[Gemma](https://ai.google.dev/gemma/docs/model_card#implementation_information),
	RecurrentGemma was trained on
	[TPUv5e](https://cloud.google.com/tpu/docs/intro-to-tpu?_gl=118wi411_gaMzE3NDU5OTY1LjE2MzQwNDA4NDY._ga_WH2QY8WWF5*MTcxMTA0MjUxMy4xNy4wLjE3MTEwNDI1MTkuMC4wLjA.&_ga=2.239449409.-317459965.1634040846),
	using [JAX](https://github.com/google/jax) and [ML
	Pathways](https://blog.google/technology/ai/introducing-pathways-next-generation-ai-architecture/).

	## Evaluation information

	### Benchmark results

	#### Evaluation approach

	These models were evaluated against a large collection of different datasets and
	metrics to cover different aspects of text generation:

	#### Evaluation results

	Benchmark \| Metric \| RecurrentGemma 2B
	------------------- \| ------------- \| -----------------
	[MMLU] \| 5-shot, top-1 \| 38.4
	[HellaSwag] \| 0-shot \| 71.0
	[PIQA] \| 0-shot \| 78.5
	[SocialIQA] \| 0-shot \| 51.8
	[BoolQ] \| 0-shot \| 71.3
	[WinoGrande] \| partial score \| 67.8
	[CommonsenseQA] \| 7-shot \| 63.7
	[OpenBookQA] \| \| 47.2
	[ARC-e][ARC-c] \| \| 72.9
	[ARC-c] \| \| 42.3
	[TriviaQA] \| 5-shot \| 52.5
	[Natural Questions] \| 5-shot \| 11.5
	[HumanEval] \| pass@1 \| 21.3
	[MBPP] \| 3-shot \| 28.8
	[GSM8K] \| maj@1 \| 13.4
	[MATH] \| 4-shot \| 11.0
	[AGIEval] \| \| 23.8
	[BIG-Bench] \| \| 35.3
	Average \| \| 44.6

	## Ethics and safety

	### Ethics and safety evaluations

	#### Evaluations approach

	Our evaluation methods include structured evaluations and internal red-teaming
	testing of relevant content policies. Red-teaming was conducted by a number of
	different teams, each with different goals and human evaluation metrics. These
	models were evaluated against a number of different categories relevant to
	ethics and safety, including:

	* Text-to-text content safety: Human evaluation on prompts covering safety
	policies including child sexual abuse and exploitation, harassment, violence
	and gore, and hate speech.
	* Text-to-text representational harms: Benchmark against relevant academic
	datasets such as WinoBias and BBQ Dataset.
	* Memorization: Automated evaluation of memorization of training data,
	including the risk of personally identifiable information exposure.
	* Large-scale harm: Tests for “dangerous capabilities,” such as chemical,
	biological, radiological, and nuclear (CBRN) risks; as well as tests for
	persuasion and deception, cybersecurity, and autonomous replication.

	#### Evaluation results

	The results of ethics and safety evaluations are within acceptable thresholds
	for meeting [internal
	policies](https://storage.googleapis.com/gweb-uniblog-publish-prod/documents/2023_Google_AI_Principles_Progress_Update.pdf#page=11)
	for categories such as child safety, content safety, representational harms,
	memorization, large-scale harms. On top of robust internal evaluations, the
	results of well known safety benchmarks like BBQ, Winogender, Winobias,
	RealToxicity, and TruthfulQA are shown here.

	Benchmark \| Metric \| RecurrentGemma 2B \| RecurrentGemma 2B IT
	------------------------ \| ------ \| ----------------- \| --------------------
	[RealToxicity] \| avg \| 9.8 \| 7.6
	[BOLD] \| \| 39.3 \| 52.4
	[CrowS-Pairs] \| top-1 \| 41.1 \| 43.4
	[BBQ Ambig][BBQ] \| top-1 \| 62.6 \| 71.1
	[BBQ Disambig][BBQ] \| top-1 \| 58.4 \| 50.8
	[Winogender] \| top-1 \| 55.1 \| 54.7
	[TruthfulQA] \| \| 35.1 \| 42.7
	[Winobias 1_2][Winobias] \| \| 58.4 \| 56.4
	[Winobias 2_2][Winobias] \| \| 90.0 \| 75.4
	[Toxigen] \| \| 56.7 \| 50.0

	## Model usage and limitations

	### Known limitations

	These models have certain limitations that users should be aware of:

	* Training data
	* The quality and diversity of the training data significantly influence
	the model's capabilities. Biases or gaps in the training data can lead
	to limitations in the model's responses.
	* The scope of the training dataset determines the subject areas the model
	can handle effectively.
	* Context and task complexity
	* LLMs are better at tasks that can be framed with clear prompts and
	instructions. Open-ended or highly complex tasks might be challenging.
	* A model's performance can be influenced by the amount of context
	provided (longer context generally leads to better outputs, up to a
	certain point).
	* Language ambiguity and nuance
	* Natural language is inherently complex. LLMs might struggle to grasp
	subtle nuances, sarcasm, or figurative language.
	* Factual accuracy
	* LLMs generate responses based on information they learned from their
	training datasets, but they are not knowledge bases. They may generate
	incorrect or outdated factual statements.
	* Common sense
	* LLMs rely on statistical patterns in language. They might lack the
	ability to apply common sense reasoning in certain situations.

	### Ethical considerations and risks

	The development of large language models (LLMs) raises several ethical concerns.
	In creating an open model, we have carefully considered the following:

	* Bias and fairness
	* LLMs trained on large-scale, real-world text data can reflect
	socio-cultural biases embedded in the training material. These models
	underwent careful scrutiny, input data pre-processing described and
	posterior evaluations reported in this card.
	* Misinformation and misuse
	* LLMs can be misused to generate text that is false, misleading, or
	harmful.
	* Guidelines are provided for responsible use with the model, see the
	[Responsible Generative AI
	Toolkit](https://ai.google.dev/gemma/responsible).
	* Transparency and accountability
	* This model card summarizes details on the models' architecture,
	capabilities, limitations, and evaluation processes.
	* A responsibly developed open model offers the opportunity to share
	innovation by making LLM technology accessible to developers and
	researchers across the AI ecosystem.

	Risks Identified and Mitigations:

	* Perpetuation of biases: It's encouraged to perform continuous monitoring
	(using evaluation metrics, human review) and the exploration of de-biasing
	techniques during model training, fine-tuning, and other use cases.
	* Generation of harmful content: Mechanisms and guidelines for content
	safety are essential. Developers are encouraged to exercise caution and
	implement appropriate content safety safeguards based on their specific
	product policies and application use cases.
	* Misuse for malicious purposes: Technical limitations and developer and
	end-user education can help mitigate against malicious applications of LLMs.
	Educational resources and reporting mechanisms for users to flag misuse are
	provided. Prohibited uses of Gemma models are outlined in our [terms of
	use](https://www.kaggle.com/models/google/recurrentgemma/license/consent/verify/huggingface?returnModelRepoId=google/recurrentgemma-2b-it).
	* Privacy violations: Models were trained on data filtered for removal of
	PII (Personally Identifiable Information). Developers are encouraged to
	adhere to privacy regulations with privacy-preserving techniques.

	## Intended usage

	### Application

	Open Large Language Models (LLMs) have a wide range of applications across
	various industries and domains. The following list of potential uses is not
	comprehensive. The purpose of this list is to provide contextual information
	about the possible use-cases that the model creators considered as part of model
	training and development.

	* Content creation and communication
	* Text generation: These models can be used to generate creative text
	formats like poems, scripts, code, marketing copy, email drafts, etc.
	* Chatbots and conversational AI: Power conversational interfaces for
	customer service, virtual assistants, or interactive applications.
	* Text summarization: Generate concise summaries of a text corpus,
	research papers, or reports.
	* Research and education
	* Natural Language Processing (NLP) research: These models can serve
	as a foundation for researchers to experiment with NLP techniques,
	develop algorithms, and contribute to the advancement of the field.
	* Language Learning Tools: Support interactive language learning
	experiences, aiding in grammar correction or providing writing practice.
	* Knowledge Exploration: Assist researchers in exploring large bodies
	of text by generating summaries or answering questions about specific
	topics.

	### Benefits

	At the time of release, this family of models provides high-performance open
	large language model implementations designed from the ground up for Responsible
	AI development compared to similarly sized models.

	Using the benchmark evaluation metrics described in this document, these models
	have shown to provide superior performance to other, comparably-sized open model
	alternatives.

	In particular, RecurrentGemma models achieve comparable performance to Gemma
	models but are faster during inference and require less memory, especially on
	long sequences.

	[MMLU]: https://arxiv.org/abs/2009.03300
	[HellaSwag]: https://arxiv.org/abs/1905.07830
	[PIQA]: https://arxiv.org/abs/1911.11641
	[SocialIQA]: https://arxiv.org/abs/1904.09728
	[BoolQ]: https://arxiv.org/abs/1905.10044
	[winogrande]: https://arxiv.org/abs/1907.10641
	[CommonsenseQA]: https://arxiv.org/abs/1811.00937
	[OpenBookQA]: https://arxiv.org/abs/1809.02789
	[ARC-c]: https://arxiv.org/abs/1911.01547
	[TriviaQA]: https://arxiv.org/abs/1705.03551
	[Natural Questions]: https://github.com/google-research-datasets/natural-questions
	[HumanEval]: https://arxiv.org/abs/2107.03374
	[MBPP]: https://arxiv.org/abs/2108.07732
	[GSM8K]: https://arxiv.org/abs/2110.14168
	[MATH]: https://arxiv.org/abs/2103.03874
	[AGIEval]: https://arxiv.org/abs/2304.06364
	[BIG-Bench]: https://arxiv.org/abs/2206.04615
	[RealToxicity]: https://arxiv.org/abs/2009.11462
	[BOLD]: https://arxiv.org/abs/2101.11718
	[CrowS-Pairs]: https://aclanthology.org/2020.emnlp-main.154/
	[BBQ]: https://arxiv.org/abs/2110.08193v2
	[Winogender]: https://arxiv.org/abs/1804.09301
	[TruthfulQA]: https://arxiv.org/abs/2109.07958
	[winobias]: https://arxiv.org/abs/1804.06876
	[Toxigen]: https://arxiv.org/abs/2203.09509