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Mercury 2.5 Preview (medium) vs GLM 5.3 (low)

Mercury 2.5 Preview (medium) leads on average score with 6.8 vs 6.5. Mercury 2.5 Preview (medium) has the lower benchmark cost at $0.039 vs $0.471. Mercury 2.5 Preview (medium) is faster at 6.66s vs 15.18s, with pass rates of 66.7% vs 63.8%.

Last updated at: 2026-10-03

Compared models

Rank
#173
Total Output Tokens
150,107
Response Time (avg)
6.66s
Total Cost
$0.039
Rank
#199
Total Output Tokens
28,106
Response Time (avg)
15.18s
Total Cost
$0.471
Recommended model Mercury 2.5 Preview (medium)

It has the best score here (6.8), while costing about 12.3x less than GLM 5.3 (low).

Detailed comparison

Metric Mercury 2.5 Preview Mercury 2.5 Preview medium Release: 2026-09-02 GLM 5.3 GLM 5.3 low Release: 2026-08-20
Score 6.8 6.5
Rank #173 #199
Reliability 10.0 10.0
Consistency 9.6 8.3
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 66.7% 63.8%
Flaky tests 1 5
Total Runs 69 69
Cost per result 0.244 3.923
Total Cost $0.039 $0.471
Input Price $0.040 / 1M $1.400 / 1M
Output Price $0.150 / 1M $4.400 / 1M
Cache Read Price N/A $0.140 / 1M
Cache Write Price N/A N/A
Total Input Tokens 397,291 247,871
Output Tokens 6,355 10,791
Reasoning Tokens 143,752 17,315
Response Time (avg) 6.66s 15.18s
Response Time (max) 74.63s 83.60s
Response Time (total) 153.29s 349.06s
Parameters ~100B 744B total (40B active)
Availability Closed Closed

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#173 Mercury 2.5 Preview

medium
Cost
$0.001
Time
2.7s
Tokens
2,241 tok

#199 GLM 5.3

low
Cost
$0.007
Time
28.4s
Tokens
1,599 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 7.8 10.0 66.7% 0 3.86s 7,839 552 22,126
GLM 5.3 6.2 6.9 55.6% 1 21.02s 7,317 368 6,764

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