Name: Tri-21B-Think Preview
Author: Trillion Labs

Tri-21B-Think Preview

Trillion Labs · 2026-02-10 · 20.7B parameters

Tri-21B-Think Preview is an intermediate reasoning checkpoint of Tri-21B with 32K mid-training context expansion and instruction tuning for chain-of-thought reasoning and tool use.

Benchmark scores

Benchmark	Score
AA-LCR	14.7
AA-Omniscience Index	-55.3
Artificial Analysis Intelligence Index	13.6
Artificial Analysis Omniscience Accuracy	8.7
Artificial Analysis Omniscience Hallucination Rate	70.1
Artificial Analysis Openness Index	44.4
Capability	129.8
CritPt	0.0
GPQA Diamond	53.8
Humanity's Last Exam (Text-Only)	5.7
IFBench (Artificial Analysis)	47.1
SciCode (Artificial Analysis)	17.8
Terminal-Bench Hard	2.3
τ²-bench (Telecom)	93.3