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Google: Gemini 3 Flash Preview vs Z.ai: GLM 5.1

Summary

Gemini 3 Flash Preview vs GLM 5.1 benchmark comparison: Gemini 3 Flash Preview leads on average score with 7.4 vs 7.1. Gemini 3 Flash Preview has the lower benchmark cost at $0.111 vs $0.395. Gemini 3 Flash Preview is faster at 5.76s vs 33.67s, with pass rates of 79.4% vs 68.3%.

Recommended model: Gemini 3 Flash Preview - It has the best score here (7.4), while costing about 3.6x less than GLM 5.1.

Last updated at: 2026-07-02

Metric Gemini 3 Flash Preview Gemini 3 Flash Preview low Release: 2025-12-17 GLM 5.1 GLM 5.1 medium Release: 2026-04-07
Score 7.4 7.1
Rank #54 #66
Reliability 10.0 6.7
Consistency 9.2 8.3
Tests Correct
Attempt pass rate 79.4% 68.3%
Flaky tests 2 4
Total Runs 63 63
Cost per result 0.689 2.496
Total Cost $0.111 $0.395
Input Price $0.500 / 1M $0.975 / 1M
Output Price $3.000 / 1M $4.301 / 1M
Total Input Tokens 36,769 32,995
Output Tokens 2,076 11,655
Reasoning Tokens 28,518 75,421
Response Time (avg) 5.76s 33.67s
Response Time (max) 14.72s 172.60s
Response Time (total) 120.93s 673.41s

Generation showcase

Hamster playing table tennis

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

#54 Gemini 3 Flash Preview

low
Cost
$0.007
Time
12.1s
Tokens
2,289 tok

#66 GLM 5.1

medium
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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 3.48s 500 281 3,082
GLM 5.1 10.0 10.0 100.0% 0 8.31s 555 401 5,122
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 5.8 7.2 44.4% 1 6.00s 8,122 456 7,421
GLM 5.1 4.6 3.7 44.5% 2 109.63s 5,702 4,871 37,826
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 3.0 10.0 0.0% 0 3.27s 12,860 326 0
GLM 5.1 9.5 10.0 100.0% 0 43.11s 17,298 327 4,206
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 9.40s 7,261 279 3,656
GLM 5.1 10.0 10.0 100.0% 0 9.33s 7,107 991 4,552
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 5.3 7.2 44.4% 1 8.05s 645 12 6,410
GLM 5.1 5.3 10.0 33.3% 0 29.77s 489 969 11,314
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 3.68s 492 120 981
GLM 5.1 10.0 10.0 100.0% 0 20.95s 477 2,875 2,875
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 9.9 10.0 100.0% 0 7.02s 621 71 2,752
GLM 5.1 6.4 5.8 66.7% 1 7.47s 634 204 1,617
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 5.77s 562 288 3,168
GLM 5.1 8.2 7.2 88.9% 1 31.64s 609 935 5,730
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 4.99s 5,550 234 415
GLM 5.1 3.0 10.0 0.0% 0 0ms 0 0 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3 Flash Preview 10.0 10.0 100.0% 0 2.75s 156 9 633
GLM 5.1 3.0 10.0 0.0% 0 29.40s 124 82 2,179

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