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#142

GLM 5.3 Flash

Z.ai Release: 2026-08-26 Tested on: 2026-10-01 00:12 z-ai/glm-5.3-flash::high
320B total (18B active)MoEOpen source
(max) (high) (low)

Summary

GLM 5.3 Flash scores 7.3 on AI BENCHY and ranks #142. It has 10.0 reliability, a 66.7% pass rate, $0.056 total cost, and 29.11s average response time.

What makes GLM 5.3 Flash unique: 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

7.3

Consistency

8.6

Reliability

10.0

Total Cost (Current Price)

$0.056

Total Output Tokens

99,340

Total Input Tokens

225,013

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: 10

Attempt pass rate: 66.7%

Flaky tests

4

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

Response Time (avg)

29.11s

Response Time (max): 163.41s

Response Time (total): 669.54s

Wrong answer: 4 Extra formatting: 2 Did not follow instructions: 2 Invalid tool call: 1 No answer: 1

Hamster playing table tennis

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

#142 GLM 5.3 Flash

high
Cost
$0.003
Time
186.7s
Tokens
10,486 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

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Total Output Tokens

Score vs Total Output Tokens

Quick Compare

GLM 5.3 FlashhighvsGemma 4 26B A4BmediumFree AvailableGLM 5.3 FlashhighvsClaude Fable 5.1mediumGLM 5.3 FlashhighvsInklingmediumFree AvailableGLM 5.3 FlashhighvsGrok 4.7mediumGLM 5.3 FlashhighvsDeepSeek V4 Pro 0423noneGLM 5.3 FlashhighvsGemini 2.5 FlashmediumGLM 5.3 FlashhighvsInkling SmallhighFree AvailableGLM 5.3 FlashhighvsLongCat 2.0highGLM 5.3 FlashhighvsGrok 4.7lowGLM 5.3 FlashhighvsQwen3.6 Plusmedium

Category Breakdown

Category Score Consistency Tests Correct
Agentic 7.4 3.8
Anti-AI Tricks 8.3 10.0
Coding 8.2 7.2
Combined 6.4 5.8
Data parsing and extraction 7.3 5.8
Domain specific 3.0 10.0
General Intelligence 5.0 10.0
Instructions following 10.0 10.0
Puzzle Solving 10.0 10.0
Tool Calling 10.0 10.0
Trivia 3.0 10.0

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