Agentic Chat (GPT-5.5)
duo-chat-gpt-5-5
Chat-tuned GPT model for conversational assistance, writing, and tool workflows
Specification
most-agreed values
Context
1.1M
Max output
128K
Released
2026-04-23
Knowledge cutoff
2025-08-31
Retires
—
Open weights
no
Input
text, image, pdf
Output
text
Price
US dollars per million tokens · most-agreed
Input
free
Output
free
Available from 1 host
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| gitlab | free | free | — | — | 1.1M | 128K | — |