Navigate
AI BENCHY
Advertise here

GPT-5.5 (low) vs GPT-5.6 Sol (high)

The average score is effectively tied at 9.3 vs 9.4. GPT-5.6 Sol (high) has the lower benchmark cost at $0.629 vs $1.257. GPT-5.5 (low) is faster at 10.15s vs 11.48s, with pass rates of 86.4% vs 89.4%.

Last updated at: 2026-08-20

Rank
#10
Total Output Tokens
28,540
Response Time (avg)
10.15s
Total Cost
$1.257
Rank
#9
Total Output Tokens
28,708
Response Time (avg)
11.48s
Total Cost
$0.629
Recommended model GPT-5.6 Sol (high)

It has the best score here (9.4), while costing about 2.0x less than GPT-5.5 (low).

Detailed comparison

Metric GPT-5.5 GPT-5.5 low Release: 2026-04-24 GPT-5.6 Sol GPT-5.6 Sol high Release: 2026-07-09
Score 9.3 9.4
Rank #10 #9
Reliability 10.0 10.0
Consistency 10.0 8.9
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 86.4% 89.4%
Flaky tests 0 3
Total Runs 66 66
Cost per result 6.614 6.987
Total Cost $1.257 $0.629
Input Price $5.000 / 1M $2.500 / 1M
Output Price $30.000 / 1M $15.000 / 1M
Total Input Tokens 80,067 79,258
Output Tokens 5,378 4,855
Reasoning Tokens 23,162 23,853
Response Time (avg) 10.15s 11.48s
Response Time (max) 56.19s 54.79s
Response Time (total) 223.24s 252.62s
Parameters ~1.5T total (~100B 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.

#10 GPT-5.5

low
Cost
$0.068
Time
37.0s
Tokens
2,339 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
GPT-5.5 10.0 10.0 100.0% 0 15.04s 7,302 423 6,402
GPT-5.6 Sol 10.0 10.0 100.0% 0 12.52s 7,302 404 5,656

Quick Compare

Switch Comparison Pair