GLM-5.3 vs GLM-5.3-Flash

Best cell per row highlighted. Null means undisclosed — never counted as zero.

Z.ai
GLM-5.3GA
8.7
AI Panel
Z.ai
GLM-5.3-FlashGA
8.6
AI Panel

Identity & lifecycle

ProviderZ.aiZ.ai
Family / tierGLM-5 · FlagshipGLM-5 · Flash
StatusGAGA
Released2026-08-142026-08-26
Knowledge cutoff——

Architecture & context

Context window1M1M
Max output tokens131K131K
Input modalitiestexttext, image, video
Reasoning modealwaysalways
Open weightsYesYes

Pricing (per Mtok)

Input$1.4$0.15
Output$4.4$0.5
Cached input$0.26$0.03
Batch input——
Free tierNoNo

Speed

Output speed (tok/s)——
Time to first token (s)——
Latency tiermediummedium

Trust & deployment

Trains on inputsNoNo
Licensecustom-GLM-5.3-LicenseMIT
CloudsMistral AI, Alibaba Cloud Model Studio—
Compliance——

AI Panel scoring

Unified score8.78.6
Decision Maker8.58.5
Domain Strategist99
Finance Lead9.59.5
Domain Practitioner99
Power User8.58.5
Skeptic7.57
Value score9.69.8

Benchmarks

Terminal-Bench88.284.3
LMArena Elo14831475
LMArena Coding Elo15241525

Scores link to their sources. Missing cells mean the vendor hasn't disclosed a result — honesty over padding.