Agentic Chat (Claude Opus 5.5)
duo-chat-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, pdf
Output
text
Price
US dollars per million tokens · most-agreed
Input
free
Output
free
Cache read
free
Cache write
free
Available from 1 host
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| gitlab | free | free | free | free | 1M | 128K | — |