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

Mercury 2.5 Preview (medium) leads on average score with 6.8 vs 6.7. Mercury 2.5 Preview (medium) has the lower benchmark cost at $0.039 vs $0.135. Mercury 2.5 Preview (medium) is faster at 6.66s vs 8.30s, with pass rates of 66.7% vs 55.1%.

Last updated at: 2026-11-10

Compared models

Rank
#231
Total Output Tokens
150,107
Response Time (avg)
6.66s
Total Cost
$0.039
Rank
#237
Total Output Tokens
37,995
Response Time (avg)
8.30s
Total Cost
$0.135
Recommended model Mercury 2.5 Preview (medium)

It has the best score here (6.8), while costing about 3.5x less than GLM 5.3 FlashX Legal (low).

Detailed comparison

Metric Mercury 2.5 Preview Mercury 2.5 Preview medium Release: 2026-09-02 GLM 5.3 FlashX Legal GLM 5.3 FlashX Legal low Release: 2026-11-02
Score 6.8 6.7
Rank #231 #237
Reliability 10.0 9.7
Consistency 9.6 7.8
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 66.7% 55.1%
Flaky tests 1 6
Total Runs 69 69
Cost per result 0.244 1.349
Total Cost $0.039 $0.135
Input Price $0.040 / 1M $0.370 / 1M
Output Price $0.150 / 1M $1.250 / 1M
Cache Read Price N/A $0.075 / 1M
Cache Write Price N/A N/A
Total Input Tokens 397,291 236,104
Output Tokens 6,355 11,222
Reasoning Tokens 143,752 26,773
Response Time (avg) 6.66s 8.30s
Response Time (max) 74.63s 64.18s
Response Time (total) 153.29s 190.99s
Parameters ~100B ~320B total (~18B 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.

#231 Mercury 2.5 Preview

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

#237 GLM 5.3 FlashX Legal

low
Cost
$0.003
Time
12.4s
Tokens
2,362 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 FlashX Legal 5.4 7.2 44.4% 1 5.90s 7,317 465 3,760

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