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DeepSeek: DeepSeek V4 Flash vs Z.ai: GLM 5.1

The average score is effectively tied at 5.6 vs 5.5. DeepSeek V4 Flash has the lower benchmark cost at $0.044 vs $0.164. GLM 5.1 is faster at 6.70s vs 36.78s, with pass rates of 31.8% vs 40.9%.

Recommended modelDeepSeek V4 FlashIt has the best score here (5.6), while costing about 3.8x less than GLM 5.1.

Last updated at: 2026-07-22

Metric DeepSeek V4 Flash DeepSeek V4 Flash none Release: 2026-04-24 GLM 5.1 GLM 5.1 none Release: 2026-04-07
Score 5.6 5.5
Rank #156 #157
Reliability 10.0 10.0
Consistency 8.5 8.2
Tests Correct
Attempt pass rate 31.8% 40.9%
Flaky tests 4 5
Total Runs 66 66
Cost per result 0.917 2.368
Total Cost $0.044 $0.164
Input Price $0.098 / 1M $0.966 / 1M
Output Price $0.196 / 1M $3.036 / 1M
Total Input Tokens 240,221 124,209
Output Tokens 100,727 14,393
Reasoning Tokens 0 0
Response Time (avg) 36.78s 6.70s
Response Time (max) 247.27s 61.20s
Response Time (total) 809.09s 147.38s

Hamster playing table tennis

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

#156 DeepSeek V4 Flash

none
Cost
$0.004
Time
157.6s
Tokens
11,297 tok

#157 GLM 5.1

none
Invalid SVG
Cost
$0.000
Time
300.0s
Tokens
0 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 4.2 7.4 11.1% 1 17.13s 7,279 9,717 0
GLM 5.1 3.9 9.7 0.0% 0 4.96s 7,256 525 0

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