Selene
Overview of Selene
Selene by Atla AI: Frontier AI Evaluation Models
What is Selene?
Selene is a suite of open-source LLM Judge models developed by Atla AI, designed to provide precise and reliable evaluations of AI application performance. It helps developers build trust with customers by ensuring the reliability of their generative AI apps through detailed scores and actionable critiques.
How does Selene work?
Selene models function as LLM-as-a-Judge, analyzing AI responses to provide scores and critiques. You can use the Selene models through Hugging Face Transformers, Ollama, or Github.
Selene Models
Explore the right size for your evaluation needs with two primary models:
- Selene 1: The flagship model offering industry-leading accuracy across a wide variety of evaluation tasks. Ideal for pre-production evaluations.
- Selene 1 Mini: A lean, optimized version perfect for running evaluations at inference time, prioritizing speed and efficiency.
Key Features and Benefits
- High Accuracy: Selene is designed to provide the most accurate evaluations available.
- Versatile Evaluation: Suitable for a wide variety of eval tasks.
- Optimized for Speed: Selene 1 Mini is optimized for running evals quickly during inference.
- Open Source: Use and contribute to the models through Hugging Face Transformers.
How to Use Selene
To use Selene, you can leverage the Hugging Face Transformers library. Here's a simple example:
from transformers import AutoModelForCausalLM, AutoTokenizer
device = "cuda" # the device to load the model onto
model_id = "AtlaAI/Selene-1-Mini-Llama-3.1-8B"
model = AutoModelForCausalLM.from_pretrained(model_id, device_map="auto")
tokenizer = AutoTokenizer.from_pretrained(model_id)
prompt = "I heard you can evaluate my responses?" # replace with your eval prompt
messages = [{"role": "user", "content": prompt}]
text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
model_inputs = tokenizer([text], return_tensors="pt").to(device)
generated_ids = model.generate(model_inputs.input_ids, max_new_tokens=512, do_sample=True)
generated_ids = [output_ids[len(input_ids):] for input_ids, output_ids in zip(model_inputs.input_ids, generated_ids)]
response = tokenizer.batch_decode(generated_ids, skip_special_tokens=True)[0]
Use Cases
- Evaluating Agent Performance: Use Selene to evaluate the performance of AI agents, track errors, and gain instant insights.
- Building Trust: Ensure the reliability of your generative AI app to build trust with customers.
- Pre-Production Evals: Use Selene 1 for rigorous evaluations before deploying your AI application.
- Inference-Time Evals: Use Selene 1 Mini for quick evaluations during inference.
Why is Selene important?
As AI applications become more prevalent, ensuring their reliability and trustworthiness is crucial. Selene provides a robust and accurate means of evaluating AI performance, empowering developers to create safer and more reliable AI systems. It is particularly important for building trust with customers, especially in generative AI applications where outputs can be unpredictable.
Where can I use Selene?
You can integrate Selene into your AI development workflow using Hugging Face Transformers. Also, you can explore Agent Evals by Atla to enhance and track Agents.
By providing open-source evaluation models, Atla AI contributes to a future with safe and reliable AI.
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