A preview of GLM-5.3 for long-horizon autonomous coding and engineering workflows. This variant defaults to the model's low reasoning tier for faster responses. While in preview, prompts and responses may be logged and used for training.
Added Aug 14, 2026
Context Window
1.0M
Max Output
131.1K
Input Price (Auto)
$1.47/1M
Output Price (Auto)
$4.62/1M
Cache Read (Auto)
$0.27/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
59.5
Coding Index
74.8
Agentic Index
59.1
Reasoning
GPQA Diamond
Graduate-level scientific reasoning
91.7%
Better than 98% of models compared
HLE
Humanity's Last Exam
42.3%
Better than 99% of models compared
AA-LCR
Long context reasoning evaluation
76.3%
Better than 99% of models compared
GDPval-AA
Economically valuable tasks
63.4%
CritPt
Research-level physics reasoning
19.1%
Coding
SciCode
Python programming for scientific computing
56.5%
Better than 99% of models compared
Knowledge
AA-Omniscience Accuracy
Proportion of correctly answered questions
33.9%
AA-Omniscience Hallucination Rate
Rate of incorrect answers among non-correct responses
29.6%
Last updated Aug 19, 2026, 12:00 PM
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