GLM-5.3-Flash

Z.ai (Zhipu AI) · Open weights · Released Aug 20, 2026 · $0.15 in · $0.50 out per 1M tokens

53Overall · rank 14

Score by job

62 · rank 15 · 3 of 5 benchmarks

Benchmark	Result	Variant	z
DeepSWE	63.4%	glm-5.3-flash_max	0.40
FrontierCode	31.8%	glm-5.3-flash_max	-0.80
LMArena Coding	1508 rating	glm-5.3-flash	0.84

Not enough data · 1 of 4 benchmarks

Benchmark	Result	Variant	z
APEX-Agents	52.8%	glm-5.3-flash_unknown	0.04

Not enough data · 1 of 4 benchmarks

Benchmark	Result	Variant	z
GPQA Diamond	90.2%	glm-5.3-flash_max	-0.57

32 · rank 28 · 5 of 5 benchmarks

Benchmark	Result	Variant	z
FrontierMath Tiers 1–3	55.8%	glm-5.3-flash_max	-0.84
FrontierMath Tier 4	17.1%	glm-5.3-flash_max	-1.00
OTIS Mock AIME	93.9%	glm-5.3-flash_max	-0.41
ProofBench	21.0%	glm-5.3-flash_max	-1.06
LMArena Math	1511 rating	glm-5.3-flash	1.14

64 · rank 20 · 2 of 2 benchmarks

Benchmark	Result	Variant	z
LMArena Creative Writing	1441 rating	glm-5.3-flash	-0.29
LMArena Instruction Following	1476 rating	glm-5.3-flash	0.44

54 · rank 15 · 1 of 1 benchmarks

Benchmark	Result	Variant	z
LMArena WebDev	1612 rating	glm-5.3-flash	0.54