Claude Opus 5.5

Github Copilot text

github_copilot/claude-opus-5.5

Input

$4.00

per 1M input tokens

Output

$20.00

per 1M output tokens

Cache read

$0.2000

per 1M cached read tokens

Cache write

$5.00

per 1M cache write tokens

Context window

200,000

Max output

128,000

Effective date

Oct 18, 2026

Estimate a workload

Enter token counts to see the cost at this model's rates.

Estimated cost: $0.00

Price history

blended $ per 1M tokens (3:1)

One price on record so far (Oct 18, 2026). This chart fills in as the price changes over time. We check daily.

Effective Input Output Blended
Oct 18, 2026 $4.00 $20.00 $8.00

Source: litellm. Confirm against the provider's official pricing before relying on these figures.