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Gemini 3.5 Flash (high) vs GPT-5.6 Sol (high)

Gemini 3.5 Flash (high) leads on average score with 9.4 vs 9.4. GPT-5.6 Sol (high) has the lower benchmark cost at $0.629 vs $2.011. GPT-5.6 Sol (high) is faster at 11.48s vs 15.46s, with pass rates of 89.4% vs 89.4%.

Last updated at: 2026-08-20

Rank
#6
Total Output Tokens
205,482
Response Time (avg)
15.46s
Total Cost
$2.011
Rank
#9
Total Output Tokens
28,708
Response Time (avg)
11.48s
Total Cost
$0.629
Recommended model GPT-5.6 Sol (high)

Its score stays close to the best score here (9.4 vs 9.4), while costing about 3.2x less than Gemini 3.5 Flash (high).

Detailed comparison

Metric Gemini 3.5 Flash Gemini 3.5 Flash high Release: 2026-05-19 GPT-5.6 Sol GPT-5.6 Sol high Release: 2026-07-09
Score 9.4 9.4
Rank #6 #9
Reliability 10.0 10.0
Consistency 9.3 8.9
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 89.4% 89.4%
Flaky tests 2 3
Total Runs 66 66
Cost per result 10.580 6.987
Total Cost $2.011 $0.629
Input Price $1.500 / 1M $2.500 / 1M
Output Price $9.000 / 1M $15.000 / 1M
Total Input Tokens 107,146 79,258
Output Tokens 8,777 4,855
Reasoning Tokens 196,705 23,853
Response Time (avg) 15.46s 11.48s
Response Time (max) 145.92s 54.79s
Response Time (total) 340.20s 252.62s
Parameters ~500B total (~20B active) ~2T total (~150B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#6 Gemini 3.5 Flash

high
Cost
$0.208
Time
118.2s
Tokens
23,158 tok

#9 GPT-5.6 Sol

high
Cost
$0.151
Time
201.9s
Tokens
5,100 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 3.5 Flash 10.0 10.0 100.0% 0 22.96s 8,118 456 47,129
GPT-5.6 Sol 10.0 10.0 100.0% 0 12.52s 7,302 404 5,656

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