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Meta: Llama 4 Scout

Llama 4 Scout Overview

Llama 4 Scout, released on April 5, 2025, is one of Meta AI’s first Llama 4 multimodal models, alongside Maverick. It accepts text + image inputs and produces text outputs, with a knowledge cutoff of August 2024. Scout is notable for its extremely large context window of 10 million tokens, making it well-suited for analyzing very long documents, extended conversations, or large codebases.

Architecturally, Scout uses a Mixture-of-Experts (MoE) system with 16 experts, activating ~17B parameters per inference from a pool of ~109B total parameters, balancing capacity with efficiency. It officially supports 12 languages (including English, Arabic, French, Hindi, and Spanish), while offering multimodal reasoning for images (captioning, Q&A, recognition). Meta highlights that Scout can run on a single Nvidia H100 GPU, making it more accessible than larger-scale Llama 4 models. However, its output token limit is far smaller than its 10M input window, image input support is still constrained, and license restrictions apply for large-scale commercial deployments.

Llama 4 Scout Interactive Demo

Results appear here. Add an image or pick an example to run Llama 4 Scout.

Llama 4 Scout Details & Performance

Details

Resources

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Vision Tasks

CaptioningChart Question AnsweringClassificationDocument Question AnsweringImage TaggingMulti-Label ClassificationOCRObject DetectionVision LanguageVisual Question Answering

Features

Foundation VisionLLMs with Vision CapabilitiesMultimodal Vision

Usage

Past 30 Days

Performance

Avg. Latency

Llama 4 Scout Vision Evals

Llama 4 Scout has not yet been evaluated on the current benchmark. The results below are from the legacy version of Vision Evals, our previous benchmark. See the current Vision Evals

Visual Understanding

77 models · 67 tasks
HighestLowest
This model#30 of 7767.16% pass rate · better than 55%
Score67.16%pass rate across 67 tasks
Speed43.93savg response per task
Cost—$0.100 in · $0.300 out / 1M
Tokens—tokens unavailable
Score key:≥75%40–74%<40%
CategoryPassedScore
Document Understanding8 / 9
88.9%
Spatial Understanding14 / 19
73.7%
Defect Detection11 / 15
73.3%
Object Understanding10 / 14
71.4%
Object Counting2 / 10
20%
HighestLowest
This model#38 of 5870.74% pass rate · better than 34%
Score70.74%pass rate across 229 tasks
Speed0.74savg response per task
Cost$0.0001 / task$0.100 in · $0.300 out / 1M
Tokens480 / task472 in · 12 out
Score key:≥75%40–74%<40%
CategoryPassedScore
License Plate Recognition28 / 30
93.3%
Text Recognition24 / 30
80%
VQA & Extraction47 / 60
78.3%
Handwritten Math7 / 10
70%
Focused Scene OCR56 / 99
56.6%

Scores based on a single evaluation run · Methodology

View all legacy Vision Evals results →

Llama 4 Scout Pricing

Llama 4 Scout costs $0.100 per 1M input tokens and $0.300 per 1M output tokens.

Input$0.100 / 1M tokens
Output$0.300 / 1M tokens

Pricing updated Sep 26, 2026

Price vs. performance

Estimated cost per task vs. Visual Understanding score, for this model and others ranked near it. Upper-left is the sweet spot (high quality, low cost). Based on Vision Evals (legacy) results.

10 of 11 models plotted · 1 not yet evaluated

ModelScoreMedian tokensEst. cost / taskCompare
GoogleGemma 4 26B A4B68.7%531$0.0001Compare
QwenQwen3.6 Plus68.7%1.6K$0.0005Compare
AnthropicClaude Opus 4.867.2%2.2K$0.012Compare
AnthropicClaude Opus 4.767.2%2.6K$0.015Compare
GoogleGemma 4 31B67.2%467$0.0001Compare
MetaLlama 4 Scout(this model)67.2%———
AnthropicClaude Opus 4.6 64.2%2.3K$0.014Compare
OpenAIGPT-5.4 Nano62.7%1.8K$0.0004Compare
MetaLlama 4 Maverick59.7%2.4K$0.0004Compare
AnthropicClaude Sonnet 4.559.7%2.3K$0.0092Compare
AnthropicClaude Opus 4.159.7%2.1K$0.040Compare

Alternatives to Llama 4 Scout

Other models worth comparing for similar use cases.

Google
Gemma 3 27B
Gemma 3 27B, announced on March 12, 2025, is the largest open-weight model in Google DeepMind’s Gemma 3 family. With around 27 billion parameters, it is multimodal—accepting both text and images as input and producing text outputs. It supports a 128,000-token context window and typically generates up to ~8,192 tokens, enabling it to process multi-page documents, extended conversations, or large batches of images in a single prompt.The model is instruction-tuned in its “-it” variants for chat, reasoning, and summarization use cases, and it supports structured outputs and function calling. It is multilingual, covering over 140 languages. Deployment is flexible: the full BF16 model requires ~46 GB of VRAM, but quantization-aware training (QAT) versions in 8-bit or 4-bit reduce the footprint significantly, allowing more accessible use outside large-scale clusters. While it delivers stronger reasoning and multimodal performance than smaller Gemma models, it remains lighter and more open than proprietary systems, making it well-suited for research, development, and fine-tuned applications.
Google
Gemini 2.5 Flash
Gemini 2.5 Flash, released on June 17, 2025, is Google DeepMind’s production-ready, efficiency-focused model in the Gemini 2.5 family. It is multimodal, accepting text, images, video, and audio as inputs, with text as the primary output format. The model supports 1 million input tokens and up to 65K output tokens, enabling it to process very large contexts such as books, long video transcripts, or extensive datasets. Its training knowledge extends to January 2025.Designed as a price-performance leader, Gemini 2.5 Flash balances speed and reasoning power, making it suitable for everyday enterprise and developer use cases without the higher latency and cost of Pro models. It supports advanced workflows like function calling, code execution, search grounding, URL context ingestion, and structured outputs. While efficient and scalable, output length is still limited compared to its input capacity, and multimodal outputs (e.g. image or audio generation) remain restricted to specialized or preview variants.
OpenAI
GPT-5 Mini
GPT-5 Mini, released by OpenAI on August 7, 2025, is a mid-tier variant of the GPT-5 family that balances cost, speed, and capability. It is multimodal, supporting both text and image inputs, and offers a substantial input context window of ~400,000 tokens with output lengths up to ~128,000 tokens. While less powerful than the full GPT-5, it inherits its safety tuning, instruction-following improvements, and multimodal reasoning, making it a practical choice for developers who need large context handling without the expense of premium models.GPT-5 Mini is optimized for affordability while retaining strong reasoning performance. Benchmarks show it outperforming earlier models such as GPT-4o on many multimodal and medical VQA tasks, though it lags behind GPT-5 on the most complex problems. Ideal use cases include prototyping, scalable content generation, document analysis, and mid-range reasoning tasks where efficiency and context capacity matter more than top-tier accuracy.
Anthropic
Claude Sonnet 4.5
Claude Sonnet 4.5, released by Anthropic in September 2025, is the company’s most advanced Sonnet-series model, built for high-performance reasoning, coding, and long-horizon agentic workflows. It is a multimodal system that accepts both text and images, with a 200,000-token context window designed for handling large documents and extended interactions. Anthropic highlights its improvements in reliability, reduced sycophancy, and alignment, making it suitable for sustained enterprise use.The model delivers strong results in coding and autonomous workflows, achieving 61.4% on the OSWorld benchmark and leading performance on SWE-bench Verified. It introduces infrastructure features such as a memory tool (beta), checkpointing for Claude Code, parallel tool use, and tighter integration with VS Code. Compared to Opus, which targets broader reasoning, Sonnet 4.5 is optimized for structured, long-duration tasks. Positioned against leading offerings from OpenAI and Google, it is aimed at enterprise automation, software engineering, and research-intensive applications.
Mistral
Mistral Medium 3.1
Mistral Medium 3.1, released in August 2025 as the mistral-medium-2508 update, is a proprietary frontier model from Mistral AI positioned between smaller open models and high-end closed LLMs. It is multimodal, handling both text and image inputs, with a context window of ~128K tokens. Compared to Mistral Medium 3.0, the 3.1 release introduces improvements in reasoning, coding, STEM, and enterprise workflows, along with better tone control for conversational and business applications. It is designed for scalable enterprise deployments, including hybrid cloud and on-premises VPC setups. As part of Mistral’s Premier line, Medium 3.1 is a commercial-only offering: while it delivers strong accuracy and performance, trade-offs include higher costs than open-weight models, restricted fine-tuning access, and increased latency/cost for very large contexts.

Llama 4 Scout License

Custom License · Model-specific license

Llama 4 Scout ships under a custom, model-specific license rather than a standard permissive or restrictive one, so the Llama 4 Scout license has to be read directly. Custom model licenses range from effectively permissive to research-only.

Commercial use
Varies. Custom model licenses commonly restrict commercial use, cap monthly active users, or carve out specific industries — check the Llama 4 Scout terms before you build on it.
Modification
Usually permitted for fine-tuning, but check whether derivative weights inherit the same license and naming requirements.
Redistribution
Often restricted. Look for attribution, naming, and acceptable-use requirements that apply to any copy you share.

Uncertainty around licensing can delay or stop a project, and acceptable-use policies attached to custom licenses are binding terms rather than guidance. Review them alongside the Llama 4 Scout license before production deployment.

Do I need a commercial license for Llama 4 Scout?

If the custom terms rule out your use case, a commercial license from the rights holder is the way through. Roboflow's licensing page lists the supported models whose commercial license is included in a Roboflow plan, so it is worth checking whether Llama 4 Scout — or a permissively licensed alternative — fits your deployment.

Do not hesitate to reach out with questions for your commercial project — our team will help you start solving business problems on the first call. See Roboflow commercial licensing for the models included in each plan.

Talk to sales

This model is released under a custom license that does not match a standard open-source identifier. Read the full license text linked from the model documentation.

Custom licenses vary widely in what they permit. Many model-specific custom licenses include commercial-use restrictions (e.g., non-commercial weights, named-user limits, or jurisdiction restrictions). Read the full license before deploying commercially.

Custom licenses are model-specific. Always check the per-model License Notes section above and the linked official license text.

License information is provided as a guide and is not legal advice.

Frequently Asked Questions About Llama 4 Scout Vision

Yes. Llama 4 Scout accepts image input, and on Roboflow's previous vision benchmark it passed 67.2% of visual understanding tasks (#30 of 77) and scored 70.7% on OCR. You can test it on your own image in the demo above.

Llama 4 Scout has not yet been evaluated on Roboflow's current Vision Evals. The results on this page are from the previous benchmark.

Yes. The demo on this page runs Llama 4 Scout in the free Roboflow Playground: upload an image and see results in seconds. A free account unlocks unlimited runs.