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#118

GLM 5.1

Z.ai Release: 2026-04-07 Tested on: 2026-08-14 01:58 z-ai/glm-5.1::medium
744B total (40B active)MoEOpen source
(medium) (none)

Summary

GLM 5.1 scores 7.0 on AI BENCHY and ranks #118. It has 8.1 reliability, a 65.2% pass rate, $0.727 total cost, and 58.80s average response time.

What makes GLM 5.1 unique: It stands out most in Anti-AI Tricks, where it ranks #1, while Coding is its weakest area at #17.

Model facts

Researched on 2026-08-12

Reported
Parameters
744B total (40B active)
Architecture
MoE
Availability
Open source
License
MIT
Parameter source Availability source

Score

7.0

Consistency

8.4

Reliability

8.1

Total Cost (Current Price)

$0.727 ↓ -12.5%

Tested at: $0.831

Total Output Tokens

215,889

Total Input Tokens

82,592

Input Price

$0.966 / 1M

Output Price

$3.036 / 1M

Tests Correct

Wrong Tests: 10

Attempt pass rate: 65.2%

Flaky tests

4

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

Response Time (avg)

58.80s

Response Time (max): 308.75s

Response Time (total): 1234.72s

Wrong answer: 4 No answer: 2 Timed out: 2 API error: 1 Extra formatting: 1

Hamster playing table tennis

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

#118 GLM 5.1

medium
Invalid SVG
Cost
$0.000
Time
300.0s
Tokens
0 tok

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-08-14 01:58 Re-test 7.0 8.1 $1.053 ↑ Current run
2026-07-16 21:29 New test added 7.1 8.3 $0.535 ↓ Compare
2026-06-04 13:06 New test added 7.3 6.7 $0.292 ↓ Compare
2026-05-21 23:46 Suite changed 7.4 3.3 $0.286 Compare
2026-05-08 14:41 Suite changed 7.6 0.0 $0.209 Compare
2026-05-08 14:41 Suite changed 7.6 0.0 $0.209 Compare
2026-04-22 12:55 First recorded run 7.8 N/A $0.201 Compare

This run used a different benchmark suite. Keep suite changes in mind when reading historical movement.

Price History

Historical pricing data for this model from OpenRouter.

Date Input Price Output Price
2026-06-04 15:40 $0.980 / 1M $3.080 / 1M
2026-06-30 21:25 $0.975 / 1M $4.301 / 1M
2026-08-05 23:12 $0.952 / 1M $2.992 / 1M
2026-08-14 12:51 $1.400 / 1M $4.400 / 1M
2026-08-15 12:46 $0.966 / 1M $3.036 / 1M

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

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Category Breakdown

Category Score Consistency Tests Correct
Anti-AI Tricks 10.0 10.0
Coding 4.6 3.7
Combined 9.8 10.0
Data parsing and extraction 10.0 10.0
Domain specific 3.0 10.0
General Intelligence 10.0 10.0
Instructions following 6.4 5.8
Puzzle Solving 8.2 7.2
Tool Calling 3.0 10.0
Trivia 3.0 10.0

Compared models