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Llama 4 Scout

Added Sep 5, 2025Open weights

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Use in the app

Llama 4 Scout, a 17 billion active parameter model with 16 experts, is the best multimodal model in the world in its class and is more powerful than all previous generation Llama models, while fitting in a single H100 GPU. Additionally, Llama 4 Scout offers an industry-leading context window of 10M and delivers better results than Gemma 3, Gemini 2.0 Flash-Lite, and Mistral 3.1 across a broad range of widely reported benchmarks.

  • Tools
  • Vision
  • Structured output
Input
Text, Images
Output
Text
Discovery tier
Open weights

Pricing

USD per 1M tokens
Input
$0.085
Output
$0.46

Reference prices as published by the model provider. API example

Specifications

Context window
328K
Max output
65.5K
Average output (7 days)
79 tokens
Longer than 7% of 473 models

Side by side

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Public evaluations

Benchmarks

Independent evaluation results, with how each score ranks among the models in the Noumen catalog.

Intelligence Index

6.5

Better than 5% of 326 scored models

3.8Catalog models by score55.1

Indexes

  • Coding Index

    8.2

    Composite of the coding evaluations

    Better than 4% of 168 scored models

  • Math Index

    14.0

    Composite of the math evaluations

    Better than 14% of 118 scored models

Agentic work

  • AutomationBench-AA

    0.2%

    Workflow automation, penalized for guardrail violations

    Better than 0% of 173 scored models

  • AutomationBench-AA tasks completed

    0.0%

    Workflows finished end to end without a guardrail violation

    Better than 0% of 173 scored models

Document reasoning

  • GDP.pdf

    0.0%

    Professional reasoning over PDF documents, all-pass rate

    Better than 0% of 171 scored models

  • AA-LCRv1.1

    27.7%

    Reasoning across long documents

    Better than 12% of 309 scored models

Reasoning and knowledge

  • Humanity’s Last Exam

    3.8%

    Expert-level questions across academic fields

    Better than 5% of 323 scored models

  • GPQA Diamond

    58.7%

    Graduate-level science questions

    Better than 16% of 291 scored models

  • MMLU-Pro

    75.2%

    Multi-subject knowledge and reasoning

    Better than 34% of 132 scored models

  • IFBench

    39.5%

    Following precise output instructions

    Better than 26% of 215 scored models

Coding

  • Terminal-Benchv4.0

    0.0%

    Practical software engineering in a terminal

    Better than 0% of 171 scored models

  • SciCode

    21.3%

    Scientific computing in Python

    Better than 2% of 174 scored models

  • LiveCodeBench

    29.9%

    Recent competitive programming problems

    Better than 19% of 129 scored models

Math

  • AIME 2025

    14.0%

    Competition mathematics, 2025 problems

    Better than 14% of 118 scored models

  • AIME

    28.3%

    Competition mathematics

    Better than 37% of 72 scored models

  • MATH-500

    84.4%

    Competition math problems

    Better than 32% of 73 scored models

Legacy evaluations

  • Terminal-Bench Hard

    1.5%

    Earlier terminal task suite

    Better than 4% of 212 scored models

  • τ²-Bench Telecom

    15.5%

    Tool use in a customer-support simulation

    Better than 4% of 214 scored models

  • AA-LCR (unversioned)

    27.7%

    Long-context reasoning, earlier grading

    Better than 12% of 309 scored models

Scores from Artificial Analysis, updated Oct 26, 2026. Artificial Analysis

Live routing data

Performance and reliability

Recent averages across requests routed for this model. Your own speed depends on prompt length, reasoning effort and load.

Prompt cache hits
0.0%
Request success (24h)
96.0%
Reliable

Cache hits are the share of input tokens recently served from a prompt cache across all requests. They are not a forecast of your own hit rate.

Hourly request success · last 72 hoursLowest hour 0.0%
  • Healthy (98% or more)
  • Degraded (90–98%)
  • Down (under 90%)
  • No requests

Developers

Use it through the API

Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.

Read the quickstart
curl https://www.noumen.xyz/api/v1/chat/completions \
  -H "Authorization: Bearer $NOUMEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "meta-llama/llama-4-scout",
    "messages": [{ "role": "user", "content": "Explain this stack trace." }]
  }'
import os
from openai import OpenAI

client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
    model="meta-llama/llama-4-scout",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

Meta

Other Meta models, starting with the same family.