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Claude Sonnet 5.5 (low) vs GLM 5.3 FlashX (low)

GLM 5.3 FlashX (low) leads on average score with 6.3 vs 6.2. GLM 5.3 FlashX (low) has the lower benchmark cost at $0.090 vs $0.620. Claude Sonnet 5.5 (low) is faster at 5.68s vs 6.58s, with pass rates of 43.9% vs 65.2%.

Last updated at: 2026-09-29

Compared models

Rank
#232
Total Output Tokens
28,630
Response Time (avg)
5.68s
Total Cost
$0.620
Rank
#227
Total Output Tokens
37,036
Response Time (avg)
6.58s
Total Cost
$0.090
Recommended model GLM 5.3 FlashX (low)

It has the best score here (6.3), while costing about 6.9x less than Claude Sonnet 5.5 (low).

Detailed comparison

Metric Claude Sonnet 5.5 Claude Sonnet 5.5 low Release: 2026-09-29 GLM 5.3 FlashX GLM 5.3 FlashX low Release: 2026-09-21
Score 6.2 6.3
Rank #232 #227
Reliability 10.0 10.0
Consistency 9.4 7.0
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 43.9% 65.2%
Flaky tests 2 8
Total Runs 66 66
Cost per result 6.880 0.816
Total Cost $0.620 $0.090
Input Price $2.000 / 1M $0.370 / 1M
Output Price $10.000 / 1M $1.250 / 1M
Total Input Tokens 166,418 117,325
Output Tokens 21,456 10,494
Reasoning Tokens 7,174 26,542
Response Time (avg) 5.68s 6.58s
Response Time (max) 22.74s 73.01s
Response Time (total) 124.87s 144.85s
Parameters ~1T total (~100B active) 320B total (18B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#232 Claude Sonnet 5.5

low
Cost
$0.020
Time
15.3s
Tokens
2,077 tok

#227 GLM 5.3 FlashX

low
Cost
$0.002
Time
8.4s
Tokens
1,526 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
Claude Sonnet 5.5 3.2 9.7 0.0% 0 5.81s 10,608 5,903 0
GLM 5.3 FlashX 5.5 7.4 44.4% 1 5.45s 7,317 382 4,760

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