Meta Llama 3
Last Updated on: Sep 12, 2025
Meta Llama 3
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What is Meta Llama 3?
Meta Llama 3 is Meta’s third-generation open-weight large language model family, released in April 2024 and enhanced in July 2024 with the 3.1 update. It spans three sizes—8B, 70B, and 405B parameters—each offering a 128K‑token context window. Llama 3 excels at reasoning, code generation, multilingual text, and instruction-following, and introduces multimodal vision (image understanding) capabilities in its 3.2 series. Robust safety mechanisms like Llama Guard 3, Code Shield, and CyberSec Eval 2 ensure responsible output.
Who can use Meta Llama 3 & how?
  • Developers & Engineers: Run code assistants, long-context summarizers, and multimodal text/image analysis.
  • Researchers & Analysts: Process large documents, perform advanced reasoning, and extract insights.
  • Enterprises & API Users: Access via Meta AI, Vertex AI, AWS, Azure, Hugging Face, Snowflake, and others.
  • Content & Localization Teams: Generate text, translate, and moderate across 30+ languages.
  • Open-Source Community: Download and deploy 8B or 70B variants freely under Meta’s open license.

How to Use Meta Llama 3?
  • Access the Models: Use the 8B and 70B open-weight editions via Meta AI, Hugging Face, or major clouds; 405B runs on data-center hardware.
  • Submit Prompts: Use mixed-language, code, or instruction-style prompts up to 128K tokens.
  • Use Vision Inputs: Llama 3.2 added image support—operate with image + text blends for captioning, grounding, and document reasoning.
  • Fine-Tune In-Context: Teach tasks interactively via examples without retraining.
  • Ensure Safe Use: Utilize built-in safeguards like Llama Guard 3, Code Shield, and CyberSec Eval 2 for responsible deployment.
What's so unique or special about Meta Llama 3?
  • Huge Context Window: 128K tokens across models—handled via grouped query attention and token masking.
  • Multi-Size Open-Weight: 8B and 70B are open-source and accessible; 405B offers frontier-level performance in research settings.
  • Multimodal Vision Support: Llama 3.2 adds robust image understanding models (11B/90B) for visual reasoning.
  • Strong Reasoning & Code: Outperforms Llama 2, rivals GPT-4o/Gemini Pro/Sonnet, excels on MMLU, GPQA, HumanEval, and MATH benchmarks.
  • Safety & Trust Innovations: Integrates Llama Guard 3, Prompt Guard, Code Shield, and CyberSec Eval 2 to reduce hallucinations and unsafe outputs.
Things We Like
  • Massive 128K‑token context window
  • Open-weight 8B & 70B models—easy to deploy
  • Multilingual and multimodal: text + vision
  • Excellent code & reasoning capabilities
  • Strong built-in safety tooling
Things We Don't Like
  • 405B model requires specialized hardware
  • Vision models limited to specific sizes and platforms
  • Inadvertent memorization of copyrighted text noted in studies
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FAQs

Meta’s third-gen open-weight LLM lineup, available in 8B/70B/405B sizes, with 128K-token context and multimodal support.
8B and 70B are for general use; 405B is a large research model with frontier performance.
All models support up to 128,000 tokens per prompt.
Yes—Llama 3.2 adds 11B and 90B vision-capable multimodal models.
Open-weight versions via Meta AI, Hugging Face, AWS, Azure, GCP, and others; 405B through data-center deployments.

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