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#197

GLM 5.3 Flash

Z.ai Release: 2026-08-26 Tested on: 2026-10-01 00:08 z-ai/glm-5.3-flash::low
320B total (18B active)MoEOpen source
(max) (high) (low)

Summary

GLM 5.3 Flash scores 6.6 on AI BENCHY and ranks #197. It has 10.0 reliability, a 58.0% pass rate, $0.038 total cost, and 11.82s average response time.

What makes GLM 5.3 Flash unique: It stands out most in Agentic, where it ranks #1, while Combined is its weakest area at #16. Its total benchmark cost is unusually low for its score range.

Model facts

Researched on 2026-08-26

Reported
Parameters
320B total (18B active)
Architecture
MoE
Availability
Open source
License
MIT

Z.ai reports a hybrid sparse and linear attention architecture for this native multimodal checkpoint.

Parameter source 1 Parameter source 2 Availability source

Score

6.6

Consistency

8.5

Reliability

10.0

Total Cost (Current Price)

$0.038

Total Output Tokens

27,168

Total Input Tokens

255,173

Input Price

$0.150 / 1M

Output Price

$0.500 / 1M

Cache Read Price

$0.030 / 1M

Cache Write Price

N/A

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Tests Correct

Wrong Tests: 12

Attempt pass rate: 58.0%

Flaky tests

4

Flaky tests had mixed outcomes across runs (at least one pass and one fail).

Response Time (avg)

11.82s

Response Time (max): 90.45s

Response Time (total): 271.92s

Wrong answer: 8 Did not follow instructions: 2 Extra formatting: 1 Invalid tool call: 1

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#197 GLM 5.3 Flash

low
Cost
$0.001
Time
20.7s
Tokens
1,482 tok

Price History

Historical pricing data for this model from OpenRouter.

Date Input Price Output Price Cache Read Price Cache Write Price
2026-10-01 18:33 $0.150 / 1M $0.500 / 1M $0.030 / 1M N/A

Charts

Choose the first model, then click a second model to open a side-by-side page.

Total Output Tokens

Score vs Total Output Tokens

Quick Compare

GLM 5.3 FlashlowvsApodex 1.1 MinihighFree AvailableGLM 5.3 FlashlowvsGPT-5.5noneGLM 5.3 FlashlowvsGPT-5.6 SolnoneGLM 5.3 FlashlowvsGLM 5.2noneGLM 5.3 FlashlowvsGPT 5.3 ChatdefaultGLM 5.3 FlashlowvsQwen3.7 FlashmediumGLM 5.3 FlashlowvsEmber-1maxGLM 5.3 FlashlowvsLongCat 2.0lowGLM 5.3 FlashlowvsMiniMax M3mediumGLM 5.3 FlashlowvsMercury 2medium

Category Breakdown

Category Score Consistency Tests Correct
Agentic 10.0 10.0
Anti-AI Tricks 8.7 7.9
Coding 5.4 7.2
Combined 3.8 5.8
Data parsing and extraction 6.5 10.0
Domain specific 3.6 7.2
General Intelligence 5.0 10.0
Instructions following 10.0 10.0
Puzzle Solving 7.8 9.6
Tool Calling 10.0 10.0
Trivia 3.0 10.0

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