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nvidia/nemotron-content-safety-reasoning-4b

Open weights
Nemotron Content Safety Reasoning 4B

Safety model for policy screening, moderation, and risk-aware routing workflows

This model's cache

This model page returns the exact headers below. The page and /api/models/nvidia--nemotron-content-safety-reasoning-4b share the model:nvidia--nemotron-content-safety-reasoning-4b tag, so invalidation stays scoped to this model.

Cache key/models/nvidia--nemotron-content-safety-reasoning-4b
Cache-Controlpublic, max-age=300, stale-while-revalidate=3600
Cache-Tagcatalogmodel:nvidia--nemotron-content-safety-reasoning-4b

Workers Cache derives the key from this path/query, plus the Worker entrypoint and current Worker version.

export const Route = createFileRoute('/models/$modelSlug')({
  headers: () => ({
    'Cache-Control': 'public, max-age=300, stale-while-revalidate=3600',
    'Cache-Tag': 'catalog,model:nvidia--nemotron-content-safety-reasoning-4b',
  }),
})

Invalidate this cache tag

await ctx.cache.purge({ tags: ['model:nvidia--nemotron-content-safety-reasoning-4b'] })

Use this when one model changes and you do not want to evict the whole catalog.

NemotronReasoning
Released
Jan 22, 2026
Last updated
Jan 22, 2026
Context window
128K tokens
Max output
4.1K tokens
Open weights
Yes
Family
Nemotron

Starts at

Free

per 1M input tokens

Output

Free

Sellers

1

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Capabilities & modalities
Reasoning
Tool calling
Structured output
Attachments
InputText
OutputText
Provider shelf
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Nvidia

nvidia/nemotron-content-safety-reasoning-4b

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