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Mercury 2.5 vs Qwen3.5-9B (medium)

Mercury 2.5 leads on average score with 3.9 vs 3.8. Mercury 2.5 has the lower benchmark cost at $0.016 vs $0.062. Mercury 2.5 is faster at 2.45s vs 107.51s, with pass rates of 25.8% vs 25.8%.

Last updated at: 2026-09-08

Compared models

Rank
#312
Total Output Tokens
71,143
Response Time (avg)
2.45s
Total Cost
$0.016
Rank
#316
Total Output Tokens
413,442
Response Time (avg)
107.51s
Total Cost
$0.062
Recommended model Mercury 2.5

It has the best score here (3.9), while costing about 4.0x less than Qwen3.5-9B (medium).

Detailed comparison

Metric Mercury 2.5 Mercury 2.5 none Release: 2026-09-08 Qwen3.5-9B Qwen3.5-9B medium Release: 2026-03-02
Score 3.9 3.8
Rank #312 #316
Reliability 10.0 6.0
Consistency 7.5 8.1
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 25.8% 25.8%
Flaky tests 7 5
Total Runs 66 66
Cost per result 0.782 2.061
Total Cost $0.016 $0.062
Input Price $0.040 / 1M $0.100 / 1M
Output Price $0.150 / 1M $0.150 / 1M
Total Input Tokens 123,740 17,195
Output Tokens 71,143 46,735
Reasoning Tokens 0 366,707
Response Time (avg) 2.45s 107.51s
Response Time (max) 36.48s 569.97s
Response Time (total) 53.83s 1720.15s
Parameters ~100B 9B
Availability Closed Open source

Model generation showcase

Hamster playing table tennis

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

#312 Mercury 2.5

none
Cost
$0.001
Time
2.7s
Tokens
2,749 tok

#316 Qwen3.5-9B

medium
Cost
$0.001
Time
35.9s
Tokens
3,030 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 3.7 7.0 22.2% 1 12.50s 7,888 61,297 0
Qwen3.5-9B 2.9 10.0 0.0% 0 100.88s 2,396 7,890 41,129

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