Seek .(US:SKLTY) 3 6 Ke·2025-06-30 05:34Core Insights - Large Language Models (LLMs) have gained popularity and are foundational to AI applications, with a wide range of uses from chatbots to data analysis [1] - The article analyzes and compares three leading open-source LLMs: Llama, Mistral, and DeepSeek, focusing on their performance and technical specifications [1] Group 1: Model Specifications - Each model series offers different parameter sizes (7B, 13B, up to 65-70B), with the number of parameters directly affecting the computational requirements (FLOP) for inference [2] - For instance, Llama and Mistral's 7B models require approximately 14 billion FLOP per token, while the larger Llama-2-70B model requires about 140 billion FLOP per token, making it ten times more computationally intensive [2] - DeepSeek has a 7B version and a larger 67B version, with similar computational requirements to Llama's 70B model [2] Group 2: Hardware Requirements - Smaller models (7B-13B) can run on a single modern GPU, while larger models require multiple GPUs or specialized hardware [3][4] - For example, Mistral 7B requires about 15GB of GPU memory, while Llama-2-13B needs approximately 24GB [3] - The largest models (65B-70B) necessitate 2-4 GPUs or dedicated accelerators due to their high memory requirements [4] Group 3: Memory Requirements - The raw memory required for inference increases with model size, with 7B models occupying around 14-16GB and 13B models around 26-30GB [5] - Fine-tuning requires additional memory for optimizer states and gradients, often needing 2-3 times the memory of the model size [6] - Techniques like LoRA and QLoRA are popular for reducing memory usage during fine-tuning by freezing most weights and training fewer additional parameters [7] Group 4: Performance Trade-offs - In production, there is a trade-off between latency (time taken for a single input to produce a result) and throughput (number of results produced per unit time) [9] - For interactive applications like chatbots, low latency is crucial, while for batch processing tasks, high throughput is prioritized [10][11] - Smaller models (7B, 13B) generally have lower per-token latency compared to larger models (70B), which can only generate a few tokens per second due to higher computational demands [10] Group 5: Production Deployment - All three models are compatible with mainstream open-source tools and have active communities [12][13] - Deployment options include local GPU servers, cloud inference on platforms like AWS, and even running on high-end CPUs for smaller models [14][15] - The models support quantization techniques, allowing for efficient deployment and integration with various service frameworks [16] Group 6: Safety Considerations - Open-source models lack the robust safety features of proprietary models, necessitating the implementation of safety layers for deployment [17] - This may include content filtering systems and rate limiting to prevent misuse [17] - Community efforts are underway to enhance the safety of open models, but they still lag behind proprietary counterparts in this regard [17] Group 7: Benchmark Performance - Despite being smaller, these models perform well on standard benchmarks, with Llama-3-8B achieving around 68.4% on MMLU, 79.6% on GSM8K, and 62.2% on HumanEval [18] - Mistral 7B scores approximately 60.1% on MMLU and 50.0% on GSM8K, while DeepSeek excels with 78.1% on MMLU and 85.5% on GSM8K [18][19][20] - The performance of these models indicates significant advancements in model design and training techniques, allowing them to compete with larger models [22][25]