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Meta-Llama-3.1-8B-Instruct

Powerful AI model optimized for diverse use cases.

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about

Jumping from 8K to 128K tokens of context versus Llama 3, this model was fine-tuned on 25 million synthetic examples generated from the larger 405B variant and aligned using a combination of rejection sampling and Direct Preference Optimization. It was the first open-weight 8B model to ship with native tool-calling support across 8 languages, trained on over 15 trillion tokens of public data.

Licensellama 3.1

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faqs

What is Llama 3.1 8B Instruct good for?

Llama 3.1 8B Instruct is well suited for conversational AI, code generation, and text summarization tasks where a balance of capability and efficiency is needed. Its compact size makes it a practical choice for production inference deployments that require low latency and manageable compute costs.

What is Llama 3 8B Instruct?

Llama 3.1 8B Instruct is Meta's instruction-tuned 8 billion parameter model from the Llama 3.1 family, released in July 2024. It supports a 128K context window and multiple languages, with strong performance on reasoning and code tasks relative to its size.

Context window(in thousands)
131,072

Use cases for Meta-Llama-3.1-8B-Instruct

  1. Multilingual customer support: Native support for 8 languages (English, German, French, Italian, Portuguese, Hindi, Spanish, Thai) enables single-model deployment across regional support teams.
  2. Tool-augmented research agents: Built-in tool-calling capability allows it to query APIs, execute code, and retrieve data within multi-step reasoning workflows.
  3. Long-document question answering: The 128K context window processes entire technical manuals or codebases in a single prompt for targeted information extraction.

Quality

Arena EloN/A
MMLUN/A
MT BenchN/A

Llama 3.1 8B Instruct scores 69.4% on MMLU (5-shot) and 73.0% on MMLU (0-shot CoT), improving over Llama 3 8B Instruct (67.4% on 5-shot) by about 2 points on the same configuration. It also scores 72.6% on HumanEval, more than double the scores of Mistral 7B v0.2 (30.5%) and Gemma 7B IT (32.3%) on the same sheet.

Claude-Opus-4-6

1501

GLM-5

1456

gpt-5.1

1455

Kimi-K2.5

1454

gpt-5.2

1440

pricing

The cost of running Llama 3.1 8B Instruct with Telnyx Inference is $0.0002 per 1,000 tokens. Analyzing 1,000,000 customer chats at 1,000 tokens each would cost $200, the same as Llama 3 8B Instruct but with stronger benchmark performance across the board.

What's Twitter saying?

  • Benchmark improvements don't always translate to real-world performance: While Llama 3.1 8B showed significant benchmark gains (reportedly double the quality compared to previous versions), tech commentator Matthew Berman found the practical results "very disappointing" when actually testing the model.
  • Excellent balance for local deployment: Developers praise the 8B model for offering a strong compromise between performance and efficiency, making it practical to run locally on consumer hardware like an RTX 4070 Ti without sacrificing quality.
  • Competitive with larger open-source alternatives: The model is positioned as a fast and efficient option that competes well with other open-source models of similar size, though it arrived nearly 9 months after competing models like Mistral 7B.
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  • What do you need for Llama 3.1 8B?

    Llama 3.1 8B requires approximately 16GB of VRAM for full-precision inference, or 8GB when using 4-bit quantization. Alternatively, hosted inference platforms like Telnyx provide API access without managing local GPU infrastructure.

    Is Llama 3 8B better than ChatGPT 4?

    Llama 3.1 8B does not match GPT-4's performance on complex reasoning and multi-step tasks, as GPT-4 is a significantly larger model. However, for straightforward generation and code assistance tasks, the 8B model offers competitive results at a fraction of the cost.

    What GPU is needed for Llama 3 8B?

    An NVIDIA GPU with at least 8GB of VRAM (such as an RTX 3070 or above) can run Llama 3.1 8B using quantized formats. For full-precision inference, 16GB+ GPUs like the RTX 4090 or A100 are recommended.