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Gemini 2.5 Flash vs Qwen3.5-Flash (medium)

Qwen3.5-Flash (medium) leads on average score with 6.1 vs 6.0. Gemini 2.5 Flash has the lower benchmark cost at $0.017 vs $0.142. Gemini 2.5 Flash is faster at 6.19s vs 84.44s, with pass rates of 39.4% vs 65.2%.

Last updated at: 2026-08-15

Rank
#180
Total Output Tokens
1,890
Response Time (avg)
6.19s
Total Cost
$0.017
Rank
#172
Total Output Tokens
512,846
Response Time (avg)
84.44s
Total Cost
$0.142
Recommended model Gemini 2.5 Flash

Its score stays close to the best score here (6.0 vs 6.1), while costing about 8.5x less than Qwen3.5-Flash (medium).

Detailed comparison

Metric Gemini 2.5 Flash Gemini 2.5 Flash none Release: 2025-06-17 Qwen3.5-Flash Qwen3.5-Flash medium Release: 2026-02-24
Score 6.0 6.1
Rank #180 #172
Reliability 10.0 10.0
Consistency 9.6 7.8
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 39.4% 65.2%
Flaky tests 1 6
Total Runs 66 66
Cost per result 0.209 1.491
Total Cost $0.017 $0.142
Input Price $0.300 / 1M $0.065 / 1M
Output Price $2.500 / 1M $0.260 / 1M
Total Input Tokens 39,886 118,508
Output Tokens 1,890 35,457
Reasoning Tokens 0 477,389
Response Time (avg) 6.19s 84.44s
Response Time (max) 118.00s 515.38s
Response Time (total) 136.23s 1773.20s
Parameters ~350B total (~20B active) ~35B total (~3B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#180 Gemini 2.5 Flash

none
Invalid SVG
Cost
$0.164
Time
215.5s
Tokens
65,659 tok

#172 Qwen3.5-Flash

medium
Cost
$0.002
Time
25.8s
Tokens
4,294 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
Gemini 2.5 Flash 5.5 10.0 33.3% 0 736ms 8,122 483 0
Qwen3.5-Flash 3.7 7.2 22.2% 1 58.87s 6,685 302 90,081

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