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Mercury 2.5 (low) vs Kimi K3.1 Pro (max)

Kimi K3.1 Pro (max) leads on average score with 8.7 vs 5.1. Mercury 2.5 (low) has the lower benchmark cost at $0.020 vs $3.578. Mercury 2.5 (low) is faster at 3.34s vs 152.72s, with pass rates of 37.7% vs 84.1%.

Last updated at: 2026-10-24

Compared models

Rank
#348
Total Output Tokens
40,302
Response Time (avg)
3.34s
Total Cost
$0.020
Rank
#66
Total Output Tokens
300,622
Response Time (avg)
152.72s
Total Cost
$3.578
Recommended model Kimi K3.1 Pro (max)

It has the strongest score in this comparison (8.7) and the best overall balance of cost and response time across 2 models.

Detailed comparison

Metric Mercury 2.5 Mercury 2.5 low Release: 2026-09-08 Kimi K3.1 Pro Kimi K3.1 Pro max Release: 2026-10-24
Score 5.1 8.7
Rank #348 #66
Reliability 9.8 7.1
Consistency 8.2 8.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 37.7% 84.1%
Flaky tests 5 4
Total Runs 69 69
Cost per result 0.319 21.043
Total Cost $0.020 $3.578
Input Price $0.040 / 1M $2.000 / 1M
Output Price $0.150 / 1M $10.000 / 1M
Cache Read Price $0.004 / 1M $0.200 / 1M
Cache Write Price N/A N/A
Total Input Tokens 326,083 285,488
Output Tokens 7,224 9,091
Reasoning Tokens 33,078 291,531
Response Time (avg) 3.34s 152.72s
Response Time (max) 47.06s 960.13s
Response Time (total) 76.80s 3512.51s
Parameters ~100B ~2.8T total (~104B 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.

#348 Mercury 2.5

low
Cost
$0.001
Time
2.4s
Tokens
1,236 tok

#66 MoonshotAI: Kimi K3.1 Pro

max
Cost
$0.193
Time
387.5s
Tokens
19,362 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 5.5 10.0 33.3% 0 972ms 7,909 521 2,269
Kimi K3.1 Pro 10.0 10.0 100.0% 0 71.94s 8,061 467 31,621

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