What is the IQ of GLM-5.3-Flash?

GLM-5.3-Flash has an estimated IQ of 121, which ranks #24 out of 131 public models on the AI IQ leaderboard. The score combines six equally weighted reasoning dimensions, each measured from source-backed benchmark results.

How much does GLM-5.3-Flash cost?

GLM-5.3-Flash costs $0.15 per million input tokens and $0.50 per million output tokens. Adjusted for how many tokens it actually consumes on real tasks, its effective cost works out to $4.99 per million input-plus-output tokens.

Is GLM-5.3-Flash open source?

Yes — GLM-5.3-Flash is an open-weights model: its trained weights are published, so it can be downloaded and self-hosted.

When was GLM-5.3-Flash released?

GLM-5.3-Flash was publicly released on August 26, 2026.

How large is the context window of GLM-5.3-Flash?

GLM-5.3-Flash supports a context window of 1,000,000 tokens — the amount of text it can consider in a single request.

How fast is GLM-5.3-Flash?

In independent measurements, GLM-5.3-Flash generates about 50 tokens per second, with a typical response time of about 52 seconds.

Z.ai

GLM-5.3-Flash

Public AI IQ model profile with source-backed benchmark results and derived ranking context.

IQ

121

EQ

n/a

Effective Cost

$4.9862

IQ Rank

#24

GLM-5.3-Flash API pricing — full price table, workload cost examples, and cheaper alternatives.

IQ Dimensions

Dimension	IQ	Coverage
Abstract Reasoning	97	0/3
Mathematical Reasoning	124	2/5
Academic Reasoning	136	4/6
Programmatic Reasoning	130	1/6
Computer Use	130	0/6
Reliability	108	3/7

Benchmark Results

Benchmark	Score	Dimension
AA Long Context Reasoning	78	Reliability
AA Omniscience	7.467	Reliability
CritPt	15.429	Academic Reasoning
FrontierMath Tier 1-3	55.7895	Mathematical Reasoning
FrontierMath Tier 4	17.0732	Mathematical Reasoning
GPQA Diamond	91.212	Academic Reasoning
Humanity's Last Exam	39.852	Academic Reasoning
SciCode	46.065	Academic Reasoning
SimpleQA Verified	32	Reliability
Terminal-Bench 2.1	84.27	Programmatic Reasoning

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Frequently Asked Questions

What is the IQ of GLM-5.3-Flash?: GLM-5.3-Flash has an estimated IQ of 121, which ranks #24 out of 131 public models on the AI IQ leaderboard. The score combines six equally weighted reasoning dimensions, each measured from source-backed benchmark results.
How much does GLM-5.3-Flash cost?: GLM-5.3-Flash costs $0.15 per million input tokens and $0.50 per million output tokens. Adjusted for how many tokens it actually consumes on real tasks, its effective cost works out to $4.99 per million input-plus-output tokens.
Is GLM-5.3-Flash open source?: Yes — GLM-5.3-Flash is an open-weights model: its trained weights are published, so it can be downloaded and self-hosted.
When was GLM-5.3-Flash released?: GLM-5.3-Flash was publicly released on August 26, 2026.
How large is the context window of GLM-5.3-Flash?: GLM-5.3-Flash supports a context window of 1,000,000 tokens — the amount of text it can consider in a single request.
How fast is GLM-5.3-Flash?: In independent measurements, GLM-5.3-Flash generates about 50 tokens per second, with a typical response time of about 52 seconds.