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anthropic/claude-opus-4-5-20251101

Claude Opus 4.5

Flagship Claude model for deep reasoning, coding, and long-horizon agents

This model's cache

This model page returns the exact headers below. The page and /api/models/anthropic--claude-opus-4-5-20251101 share the model:anthropic--claude-opus-4-5-20251101 tag, so invalidation stays scoped to this model.

Cache key/models/anthropic--claude-opus-4-5-20251101
Cache-Controlpublic, max-age=300, stale-while-revalidate=3600
Cache-Tagcatalogmodel:anthropic--claude-opus-4-5-20251101

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:anthropic--claude-opus-4-5-20251101',
  }),
})

Invalidate this cache tag

await ctx.cache.purge({ tags: ['model:anthropic--claude-opus-4-5-20251101'] })

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

Claude OpusReasoningTool callingAttachmentsTemperature control
Released
Nov 1, 2025
Last updated
Nov 1, 2025
Context window
200K tokens
Max output
64K tokens
Open weights
No
Family
Claude Opus

Starts at

$5

per 1M input tokens

Output

$25

Sellers

2

No cart or checkout in this MVP — pick a provider below and open their docs when you're ready to use it.

Capabilities & modalities
Reasoning
Tool calling
Structured output
Attachments
InputText, Image, Pdf
OutputText
Provider shelf
Where to get Claude Opus 4.5

Sorted by lowest input price

ProviderInput / 1MOutput / 1MContext

Merge Gateway

anthropic/claude-opus-4-5-20251101

$5$25200KDocs

Anthropic

claude-opus-4-5-20251101

$5$25200KDocs
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