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#164

GLM 5.3 FlashX

Z.ai Release: 2026-09-21 Tested on: 2026-09-30 23:37 z-ai/glm-5.3-flashx::high
320B total (18B active)MoEClosed
(max) (high) (medium) (low)

Summary

GLM 5.3 FlashX scores 7.4 on AI BENCHY and ranks #164. It has 10.0 reliability, a 69.6% pass rate, $0.210 total cost, and 14.94s average response time.

Model facts

Researched on 2026-09-21

Reported
Parameters
320B total (18B active)
Architecture
MoE
Availability
Closed
License
-

OpenRouter reports 320B total and 18B active parameters for FlashX. This record describes the hosted FlashX checkpoint; the open Flash weights do not establish an exact FlashX weights release.

Parameter source Availability source

Score

7.4

Consistency

8.2

Reliability

10.0

Total Cost (Current Price)

$0.210

Total Output Tokens

97,728

Total Input Tokens

235,914

Input Price

$0.370 / 1M

Output Price

$1.250 / 1M

Cache Read Price

$0.090 / 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: 69.6%

Flaky tests

5

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

Response Time (avg)

14.94s

Response Time (max): 91.16s

Response Time (total): 343.65s

Wrong answer: 8 Extra formatting: 1 Did not follow instructions: 1

Hamster playing table tennis

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

#164 GLM 5.3 FlashX

high
Cost
$0.030
Time
169.4s
Tokens
23,950 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 $0.370 / 1M $1.250 / 1M $0.090 / 1M N/A

Charts

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Total Output Tokens

Score vs Total Output Tokens

Quick Compare

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Category Breakdown

Category Score Consistency Tests Correct
Agentic 10.0 10.0
Anti-AI Tricks 8.2 7.9
Coding 8.2 7.2
Combined 3.0 10.0
Data parsing and extraction 7.3 5.8
Domain specific 3.6 7.2
General Intelligence 6.1 3.1
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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