Lijian (Sharp Sword) stealth UAV is a bomber. Think of it as a small B-2 drone.
Tian Yi 2 (Sky Wing 2) is for reconnaissance and targeting.
The two stealth drones have different jobs.
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Unmanned Aerial Vehicles (UAVs) - Chinese Intelligence Systems
"The Tian Yi began testing in 2009, as Chengdu's step toward a future Global Hawk class HALE UAV. A new Chinese UAV design — with a 60,000-ft. cruising altitude, 300-mi. radar surveillance range and low radar reflectivity (if it uses the right composite structure) — could serve as the targeting node for China’s anti-ship ballistic missiles."