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Mercury 2.5 Preview (high) vs GLM 5.1

The average score is effectively tied at 6.5 vs 6.5. Mercury 2.5 Preview (high) has the lower benchmark cost at $0.039 vs $0.311. Mercury 2.5 Preview (high) is faster at 7.61s vs 11.10s, with pass rates of 65.2% vs 47.8%.

Last updated at: 2026-10-01

Compared models

Rank
#193
Total Output Tokens
180,597
Response Time (avg)
7.61s
Total Cost
$0.039
Rank
#196
Total Output Tokens
20,076
Response Time (avg)
11.10s
Total Cost
$0.311
Recommended model Mercury 2.5 Preview (high)

It has the best score here (6.5), while costing about 8.1x less than GLM 5.1.

Detailed comparison

Metric Mercury 2.5 Preview Mercury 2.5 Preview high Release: 2026-09-02 GLM 5.1 GLM 5.1 none Release: 2026-04-07
Score 6.5 6.5
Rank #193 #196
Reliability 9.9 10.0
Consistency 8.0 8.2
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 65.2% 47.8%
Flaky tests 6 5
Total Runs 69 69
Cost per result 0.319 3.478
Total Cost $0.039 $0.311
Input Price $0.000 / 1M $0.965 / 1M
Output Price $0.000 / 1M $3.032 / 1M
Total Input Tokens 298,512 258,956
Output Tokens 3,178 20,076
Reasoning Tokens 177,419 0
Response Time (avg) 7.61s 11.10s
Response Time (max) 86.84s 107.19s
Response Time (total) 175.08s 255.39s
Parameters ~100B 744B total (40B active)
Availability Closed Open source

Model generation showcase

Hamster playing table tennis

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

#193 Mercury 2.5 Preview

high
Cost
$0.001
Time
4.5s
Tokens
3,851 tok

#196 GLM 5.1

none
Reached the allocated time limit (300 seconds) without receiving showcase output.
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
Mercury 2.5 Preview 6.7 7.8 55.6% 1 6.13s 7,751 485 42,569
GLM 5.1 3.9 9.7 0.0% 0 4.96s 7,256 525 0

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