GPT-6.1 Terra Pro uses the same underlying model as GPT-6.1 Terra with Pro reasoning mode enabled for higher-quality responses on complex tasks.
Specification
most-agreed values
Context
1.1M
Max output
128K
Released
2026-10-27
Knowledge cutoff
—
Retires
—
Open weights
no
Input
text, image, pdf
Output
text
Price
US dollars per million tokens · most-agreed
Input
$1.00
Output
$5.00
Cache read
$0.05
Cache write
$1.25
Available from 3 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| kilo | $1.00 | $5.00 | $0.05 | $1.25 | 1.1M | 128K | — |
| nano-gpt | $1.00 | $5.00 | $0.05 | $1.25 | 1.1M | 128K | — |
| openrouter | $1.00 | $5.00 | $0.05 | $1.25 | 1.1M | 128K | — |
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