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Llama 4 Scout
metameta/llama-4-scout
How TheRouter serves this differently from the vendor
As the vendor operates it
Meta publishes Llama 4 Scout as open weights under the Llama 4 Community License, with BF16 weights and support for on-the-fly int4 quantization in Meta's release notes.
On TheRouter
TheRouter serves Scout as a managed OpenAI-compatible model route with catalog pricing, context, modalities, and supported parameters coming from standard-models.yaml.
API guide
Chat completion
Standard OpenAI-compatible chat endpoint. Switch only the baseURL and model name β no SDK changes required.
cURL
curl https://api.therouter.ai/v1/chat/completions \
-H "Authorization: Bearer $THEROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "meta/llama-4-scout",
"messages": [{"role": "user", "content": "Summarize this document."}]
}'Vision / image input
Use the standard OpenAI vision message format for image inputs. Meta's Llama 4 card says image understanding was tested with up to 5 input images.
cURL
curl https://api.therouter.ai/v1/chat/completions \
-H "Authorization: Bearer $THEROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "meta/llama-4-scout",
"messages": [{
"role": "user",
"content": [
{"type": "text", "text": "Extract the key facts from this chart."},
{"type": "image_url", "image_url": {"url": "https://therouter.ai/assets/vision-sample.png"}}
]
}]
}'Fact ledger β every claim on this page traces here
| source | URL | retrieved | |
|---|---|---|---|
| Release date | github.com/meta-llama β | 2026-08-25 | verified |
| Architecture | github.com/meta-llama β | 2026-08-25 | verified |
| Active parameters | github.com/meta-llama β | 2026-08-25 | verified |
| Total parameters | github.com/meta-llama β | 2026-08-25 | verified |
| Context window | github.com/meta-llama β | 2026-08-25 | verified |
| Input and output modalities | github.com/meta-llama β | 2026-08-25 | verified |
| Training token count | github.com/meta-llama β | 2026-08-25 | verified |
| Knowledge cutoff | github.com/meta-llama β | 2026-08-25 | verified |
| Supported languages | github.com/meta-llama β | 2026-08-25 | verified |
| License | github.com/meta-llama β | 2026-08-25 | verified |
| MMLU | github.com/meta-llama β | 2026-08-25 | verified |
| MMLU Pro | github.com/meta-llama β | 2026-08-25 | verified |
| GPQA Diamond | github.com/meta-llama β | 2026-08-25 | verified |
| MATH | github.com/meta-llama β | 2026-08-25 | verified |
| MMMU | github.com/meta-llama β | 2026-08-25 | verified |
| MathVista | github.com/meta-llama β | 2026-08-25 | verified |
| ChartQA | github.com/meta-llama β | 2026-08-25 | verified |
| MBPP | github.com/meta-llama β | 2026-08-25 | verified |
| Meta releases Llama 4 Maverick and Scout β open multimodal MoE herd | ai.meta.com β | 2026-08-25 | verified |
| How is Llama 4 Scout different from Llama 4 Maverick? | github.com/meta-llama β | 2026-08-25 | to verify |
| Can I self-host Llama 4 Scout? | github.com/meta-llama β | 2026-08-25 | to verify |
| How many images can Llama 4 Scout handle per request? | github.com/meta-llama β | 2026-08-25 | to verify |