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LongCat 2.0 (low) vs GPT 5.3 Chat

GPT 5.3 Chat leads on average score with 6.7 vs 6.6. LongCat 2.0 (low) has the lower benchmark cost at $0.495 vs $0.533. GPT 5.3 Chat is faster at 6.31s vs 115.00s, with pass rates of 55.1% vs 62.3%.

Last updated at: 2026-10-01

Compared models

Rank
#188
Total Output Tokens
346,225
Response Time (avg)
115.00s
Total Cost
$0.495
Rank
#182
Total Output Tokens
28,179
Response Time (avg)
6.31s
Total Cost
$0.533
Recommended model GPT 5.3 Chat

It has the best score here (6.7), while responding about 18.2x faster than LongCat 2.0 (low).

Detailed comparison

Metric LongCat 2.0 LongCat 2.0 low Release: 2026-07-20 GPT 5.3 Chat GPT 5.3 Chat none Release: 2026-03-03
Score 6.6 6.7
Rank #188 #182
Reliability 9.9 10.0
Consistency 8.3 8.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 55.1% 62.3%
Flaky tests 5 4
Total Runs 69 69
Cost per result 4.942 4.097
Total Cost $0.495 $0.533
Input Price $0.300 / 1M $0.000 / 1M
Output Price $1.200 / 1M $0.000 / 1M
Total Input Tokens 262,387 78,846
Output Tokens 7,344 28,179
Reasoning Tokens 338,881 0
Response Time (avg) 115.00s 6.31s
Response Time (max) 560.39s 18.33s
Response Time (total) 2645.11s 138.73s
Parameters 1.6T total (48B active) ~400B total (~17B active)
Availability Open source Closed

Model generation showcase

Hamster playing table tennis

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

#188 LongCat 2.0

low
Cost
$0.024
Time
428.0s
Tokens
19,557 tok

#182 GPT 5.3 Chat

none
Cost
$0.008
Time
8.1s
Tokens
634 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 6.6 4.6 77.8% 2 479.30s 6,544 461 206,627
GPT 5.3 Chat 5.6 4.7 55.6% 2 10.52s 7,302 6,632 0

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