Llama 4 Scout
Llama 4 Scout 17B Instruct (16E) is a mixture-of-experts (MoE) language model developed by Meta, activating 17 billion parameters out of a total of 109B. It supports native multimodal input (text and image) and multilingual output (text and code) across 12 supported languages. Designed for assistant-style interaction and visual reasoning, Scout uses 16 experts per forward pass and features a context length of 10 million tokens, with a training corpus of ~40 trillion tokens. Built for high effic
Context window
This model accepts 328K tokens in one request (~246K words of text).
What fits in one request
- FitsShort documentAbout 1,500 words of text
- FitsLong documentAbout 37K words of text
- FitsSmall codebaseAbout 150K words of text
- Won't fitFull novelAbout 375K words of text
Specifications
Context size, pricing, and release info in one place.
- Context window
- 327,680 tokens (328K)
- Max output tokens
- 16,384 tokens (16K)
- Speed tier
- balanced
- Provider
- Meta
- Model family
- Llama 4
- Release date
- Apr 2025
Capabilities
See which features this model supports, such as vision, tools, and streaming.
- Vision
- Accepts image inputs alongside text
- Supported
- Tool use
- Can call external tools and APIs
- Supported
- Function calling
- Structured function call interface
- Supported
- Streaming
- Returns tokens as they are generated
- Supported
- Extended thinking
- Shows its chain-of-thought reasoning
- Not supported
- Web search
- Can browse the web during a request
- Not supported
- Batch API
- Process many requests asynchronously
- Not supported
- Prompt caching
- Reuse repeated prompt prefixes cheaply
- Not supported
Best for
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Compare Llama 4 Scout
Open a side-by-side comparison with one click.
- Llama 4 Scout vs Codellama 34b Instruct
Llama 4 Scout has 7900% larger context window
- Llama 4 Scout vs Codellama 70b Instruct
Llama 4 Scout has 7900% larger context window
- Llama 4 Scout vs Llama 2 13b Chat
Llama 4 Scout has 7900% larger context window
- Llama 4 Scout vs Llama 2 70b Chat
Llama 4 Scout has 7900% larger context window
- Llama 4 Scout vs Amazon Titan Text Express
Llama 4 Scout has 680% larger context window
- Llama 4 Scout vs Amazon Titan Text Lite
Llama 4 Scout has 680% larger context window
Frequently asked questions
Short answers about context size and how this model behaves.
More from Meta
Other models by Meta in our catalog.
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