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Llama 4 Scout

A single-GPU open model with a 10M-token context.

4.1Released April 2025109B MoE (17B active) · 10M context

Overview

Llama 4 Scout is the efficiency-focused member of the Llama 4 herd: 109B total parameters across 16 experts with 17B active, small enough to run on a single NVIDIA H100 yet natively multimodal. Its headline feature is an industry-first 10M-token context window — roughly enough to ingest entire codebases or vast document sets in one pass.

Scout is built for speed, efficiency and ultra-long-context tasks, beating comparably sized models like Gemma 3 and Gemini 2.0 Flash-Lite across many benchmarks at launch. For developers who want a capable open multimodal model that fits a single GPU and handles enormous inputs, Scout is a remarkable package.

Key capabilities

  • Industry-first 10M-token context window
  • Runs on a single H100 GPU
  • Natively multimodal
  • Strong for its size and efficiency

At a glance

Context

10M tokens

Params

109B total / 17B active

Hardware

Single H100

Pricing: Very low — efficient, single-GPU deployment.

Pros & cons

What we like

  • Unmatched context length
  • Fits on one GPU
  • Fast and efficient

Trade-offs

  • Lower ceiling than Maverick on hard tasks
  • Long-context quality varies in practice

The verdict

4.1Aggregate review

Llama 4 Scout is a clever engineering win — a single-GPU, multimodal open model with a 10M-token context that no rival matched at launch. For ultra-long-context and cost-sensitive deployments, it's a standout choice.

Best for: Ultra-long-context tasks on a single GPU.

Frequently asked questions

How long is Llama 4 Scout's context window?

Up to 10 million tokens — an industry first at launch — making it ideal for ingesting entire codebases or large document collections at once.

Further reading

Related models