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LongCat 2.0 (medium) vs Qwen3.5 Plus 2026-02-15 (medium)

The average score is effectively tied at 7.2 vs 7.2. Qwen3.5 Plus 2026-02-15 (medium) has the lower benchmark cost at $0.567 vs $0.767. Qwen3.5 Plus 2026-02-15 (medium) is faster at 97.68s vs 144.88s, with pass rates of 59.4% vs 72.5%.

Last updated at: 2026-10-03

Compared models

Rank
#147
Total Output Tokens
422,234
Response Time (avg)
144.88s
Total Cost
$0.767
Rank
#142
Total Output Tokens
302,730
Response Time (avg)
97.68s
Total Cost
$0.567
Recommended model Qwen3.5 Plus 2026-02-15 (medium)

It has the strongest score in this comparison (7.2) and the best overall balance of cost and response time across all 2 models.

Detailed comparison

Metric LongCat 2.0 LongCat 2.0 medium Release: 2026-07-20 Qwen3.5 Plus 2026-02-15 Qwen3.5 Plus 2026-02-15 medium Release: 2026-02-15
Score 7.2 7.2
Rank #147 #142
Reliability 10.0 10.0
Consistency 9.0 7.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 59.4% 72.5%
Flaky tests 3 6
Total Runs 69 69
Cost per result 4.942 4.047
Total Cost $0.767 $0.567
Input Price $0.300 / 1M $0.260 / 1M
Output Price $1.200 / 1M $1.560 / 1M
Cache Read Price $0.006 / 1M N/A
Cache Write Price N/A N/A
Total Input Tokens 287,669 249,486
Output Tokens 47,204 14,481
Reasoning Tokens 375,030 288,249
Response Time (avg) 144.88s 97.68s
Response Time (max) 939.52s 304.85s
Response Time (total) 3332.19s 1562.81s
Parameters 1.6T total (48B active) ~397B total (~17B active)
Availability Open source 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.

#147 LongCat 2.0

medium
Cost
$0.016
Time
285.1s
Tokens
13,057 tok

#142 Qwen3.5 Plus 2026-02-15

medium
Cost
$0.011
Time
125.5s
Tokens
7,040 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
LongCat 2.0 10.0 10.0 100.0% 0 455.00s 7,419 533 214,143
Qwen3.5 Plus 2026-02-15 6.6 7.1 44.4% 1 180.70s 6,950 420 80,595

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