Claude Opus 4.8 pricing

Claude Opus 4.8 from Anthropic costs $5.00 per 1M input tokens and $25.00 per 1M output tokens. Cached input is $0.500 per 1M. Context window 1,000,000 tokens.

API id claude-opus-4.8 · Anthropic · source · updated 2026-08-11

$5.00
Input / 1M tokens
$25.00
Output / 1M tokens
$0.500
Cached input / 1M
1M
Context window

What Claude Opus 4.8 costs in practice

Estimated cost at common usage volumes
WorkloadInput tokensOutput tokensEstimated cost
Short chat turn1,000500$0.02
Document summary50,0002,000$0.30
1M tokens in, 200K out1,000,000200,000$10.00

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Common questions

How much does Claude Opus 4.8 cost per 1M tokens?
Claude Opus 4.8 costs $5.00 per 1M input tokens and $25.00 per 1M output tokens on the standard tier. Cached input is $0.500 per 1M.
What is Claude Opus 4.8's context window?
Claude Opus 4.8 accepts up to 1,000,000 tokens in a single request, and can return up to 128,000 output tokens.
Is there a cheaper Claude model than Claude Opus 4.8?
Yes. Claude Haiku 3.5 is $0.800 per 1M input tokens versus $5.00 for Claude Opus 4.8.
Where does this Claude Opus 4.8 price come from?
Directly from Anthropic's published pricing page, re-read every day and normalized to USD per 1,000,000 tokens.

Other Claude models

See all Claude pricing →