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gpt-oss-120b (medium) vs Qwen3.5 Plus 2026-04-20

The average score is effectively tied at 6.1 vs 6.1. gpt-oss-120b (medium) has the lower benchmark cost at $0.020 vs $0.122. Qwen3.5 Plus 2026-04-20 is faster at 13.10s vs 20.81s, with pass rates of 50.0% vs 43.9%.

Last updated at: 2026-09-08

Compared models

Rank
#194
Total Output Tokens
98,282
Response Time (avg)
20.81s
Total Cost
$0.020
Rank
#202
Total Output Tokens
51,487
Response Time (avg)
13.10s
Total Cost
$0.122
Recommended model gpt-oss-120b (medium)

It has the best score here (6.1), while costing about 6.4x less than Qwen3.5 Plus 2026-04-20.

Detailed comparison

Metric gpt-oss-120b gpt-oss-120b medium Release: 2025-08-05 Qwen3.5 Plus 2026-04-20 Qwen3.5 Plus 2026-04-20 none Release: 2026-04-20
Score 6.1 6.1
Rank #194 #202
Reliability 10.0 10.0
Consistency 8.0 8.7
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 50.0% 43.9%
Flaky tests 5 4
Total Runs 66 66
Cost per result 0.224 1.636
Total Cost $0.020 $0.122
Input Price $0.037 / 1M $0.300 / 1M
Output Price $0.170 / 1M $1.800 / 1M
Total Input Tokens 108,767 94,477
Output Tokens 29,378 51,487
Reasoning Tokens 68,904 0
Response Time (avg) 20.81s 13.10s
Response Time (max) 68.16s 206.05s
Response Time (total) 332.88s 288.23s
Parameters 117B total (5.1B active) ~397B 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.

#194 gpt-oss-120b

medium
Cost
$0.001
Time
26.7s
Tokens
555 tok

#202 Qwen3.5 Plus 2026-04-20

none
Cost
$0.008
Time
77.0s
Tokens
4,369 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-oss-120b 5.9 7.0 55.6% 1 38.37s 7,782 3,365 11,973
Qwen3.5 Plus 2026-04-20 3.9 7.8 11.1% 1 1.69s 7,913 480 0

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