HOST DIAGNOSTIC · Zhipu AI
GLM-5.1
GLM-5.1 · ACTIVE· GLM· CLOSED
ACTIVE
ATTRIBUTE MATRIX · ATRBT GROUP 01
HOST TELEMETRY
AVG
14.1
/20
BEST
17
Cost Efficiency
WEAK
13
Candor
PARAMETERS
Undisclosed
CONTEXT
—
PRICING
—
STATUS
ACTIVE
SCORING METHODOLOGY
CALIBRATED per ADR-NM108 (April 2026 snapshot). Added to Arena Text April 7, 2026 + Arena Code April 9. GLM-5 baseline: SWE-Bench Verified 77.8% (94.6% of Opus 4.6's 80.8%). GLM-5.1 is the upgraded variant. Cost Efficiency scored high (17) as Chinese open-weight models deliver strong performance at fraction of frontier pricing. Represents the 'open-weight models closing the gap' narrative highlighted in Stanford AI Index 2026. Provider formerly known as Zhipu AI, rebranded to Z.ai.