Anthropic Claude Opus 5.5
anthropic-claude-opus-5-5
Claude model for long-running agentic coding and knowledge work
Specification
most-agreed values
Context
1M
Max output
128K
Released
2026-09-22
Knowledge cutoff
2026-06
Retires
—
Open weights
no
Input
text, image
Output
text
Price
US dollars per million tokens · most-agreed
Input
$4.00
Output
$20.00
Cache read
$0.20
Cache write
$5.00
Available from 1 host
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| digitalocean | $4.00 | $20.00 | $0.20 | $5.00 | 1M | 128K | — |