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Google: Gemini 3.5 Flash vs Z.ai: GLM 5.1

Last updated at: 2026-05-22

Metric Gemini 3.5 Flash Gemini 3.5 Flash minimal Release: 2026-05-19 GLM 5.1 GLM 5.1 medium Release: 2026-04-07
Score 7.9 7.4
Rank #24 #51
Reliability 10.0 3.3
Consistency 9.6 8.3
Tests Correct
Attempt pass rate 71.7% 71.7%
Flaky tests 1 4
Total Runs 60 60
Cost per result 0.734 2.379
Total Cost $0.103 $0.286
Input Price $1.500 / 1M $0.980 / 1M
Output Price $9.000 / 1M $3.080 / 1M
Output Tokens 5,271 11,475
Reasoning Tokens 0 71,876
Response Time (avg) 1.58s 32.22s
Response Time (max) 5.51s 172.60s
Response Time (total) 31.55s 612.25s

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Score vs Total Cost

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Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 6.5 10.0 50.0% 0 892ms 405 0
GLM 5.1 10.0 10.0 100.0% 0 8.31s 401 5,122
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 7.0 9.8 50.0% 0 3.39s 3,450 0
GLM 5.1 4.7 1.6 66.7% 2 145.56s 4,727 34,384
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 3.0 10.0 0.0% 0 3.56s 404 0
GLM 5.1 9.5 10.0 100.0% 0 43.11s 327 4,206
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 1.66s 279 0
GLM 5.1 10.0 10.0 100.0% 0 9.33s 991 4,552
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 899ms 12 0
GLM 5.1 5.3 10.0 33.3% 0 29.77s 969 11,314
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 922ms 117 0
GLM 5.1 10.0 10.0 100.0% 0 20.95s 2,875 2,875
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 6.4 5.8 66.7% 1 893ms 76 0
GLM 5.1 6.4 5.8 66.7% 1 7.47s 204 1,617
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 1.45s 282 0
GLM 5.1 8.2 7.2 88.9% 1 23.85s 899 5,627
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.79s 234 0
GLM 5.1 3.0 10.0 0.0% 0 0ms 0 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.5 Flash 3.0 10.0 0.0% 0 1.76s 12 0
GLM 5.1 3.0 10.0 0.0% 0 29.40s 82 2,179

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