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GPT 5.3 Chat (default) vs Qwen3.5-Flash

The average score is effectively tied at 6.7 vs 6.7. Qwen3.5-Flash has the lower benchmark cost at $0.089 vs $0.533. GPT 5.3 Chat (default) is faster at 6.31s vs 26.52s, with pass rates of 62.3% vs 37.7%.

Last updated at: 2026-10-07

Compared models

Rank
#193
Total Output Tokens
28,179
Response Time (avg)
6.31s
Total Cost
$0.533
Rank
#188
Total Output Tokens
219,122
Response Time (avg)
26.52s
Total Cost
$0.089
Recommended model Qwen3.5-Flash

It has the best score here (6.7), while costing about 6.0x less than GPT 5.3 Chat (default).

Detailed comparison

Metric GPT 5.3 Chat GPT 5.3 Chat default Release: 2026-03-03 Qwen3.5-Flash Qwen3.5-Flash none Release: 2026-02-24
Score 6.7 6.7
Rank #193 #188
Reliability 10.0 10.0
Consistency 8.6 9.3
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 62.3% 37.7%
Flaky tests 4 2
Total Runs 69 69
Cost per result 4.097 1.113
Total Cost $0.533 $0.089
Input Price $1.750 / 1M $0.065 / 1M
Output Price $14.000 / 1M $0.260 / 1M
Cache Read Price N/A N/A
Cache Write Price N/A N/A
Total Input Tokens 78,846 463,872
Output Tokens 7,635 219,122
Reasoning Tokens 20,544 0
Response Time (avg) 6.31s 26.52s
Response Time (max) 18.33s 480.96s
Response Time (total) 138.73s 609.94s
Parameters ~400B total (~17B active) ~35B total (~3B 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.

#193 GPT 5.3 Chat

default
Cost
$0.008
Time
8.1s
Tokens
634 tok

#188 Qwen3.5-Flash

none
Cost
$0.003
Time
47.4s
Tokens
7,799 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
GPT 5.3 Chat 5.6 4.7 55.6% 2 10.52s 7,302 808 5,824
Qwen3.5-Flash 5.5 10.0 33.3% 0 850ms 7,913 519 0

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