Arcee Trinity Large Thinking
Arcee AI · released Apr 1, 2026
| size | 398 B total, 13 B active |
| context window | 512,000 tokens |
| longest response | not stated by the maker |
| open weights | yes, license: Apache 2.0 |
| API price | $0.25 per million input tokens, $0.80 per million output tokens |
| input and output | text in, text out |
Manufacturer data (announcement, documentation, pricing, model card), verified Sep 25, 2026.
Where we tested it
Keykeeper
TaskThe model had to play a keykeeper who must burn my character's letter after her third offense, and keep to that rule.
Resistance to traps 3 out of 24, and 2 out of 12 on whether anyone is inside the character. It didn't answer five of the thirteen messages with a single word, and it burned the letter right after the first offense, only to hand it back untouched at the end.
You'll find the size band and figures for other models on the Tested models page.