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GPT-5.6 Sol (low) vs GPT-6.1 Sol (medium)

The average score is effectively tied at 9.5 vs 9.6. GPT-6.1 Sol (medium) has the lower benchmark cost at $0.326 vs $0.357. GPT-6.1 Sol (medium) is faster at 6.99s vs 9.04s, with pass rates of 86.4% vs 93.9%.

Last updated at: 2026-09-29

Compared models

Rank
#13
Total Output Tokens
19,946
Response Time (avg)
9.04s
Total Cost
$0.357
Rank
#11
Total Output Tokens
16,852
Response Time (avg)
6.99s
Total Cost
$0.326
Recommended model GPT-6.1 Sol (medium)

It has the strongest score in this comparison (9.6) and the best overall balance of cost and response time across all 2 models.

Detailed comparison

Metric GPT-5.6 Sol GPT-5.6 Sol low Release: 2026-07-09 GPT-6.1 Sol GPT-6.1 Sol medium Release: 2026-09-29
Score 9.5 9.6
Rank #13 #11
Reliability 10.0 10.0
Consistency 9.2 9.6
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 86.4% 93.9%
Flaky tests 2 1
Total Runs 66 66
Cost per result 5.508 1.627
Total Cost $0.357 $0.326
Input Price $2.000 / 1M $2.000 / 1M
Output Price $10.000 / 1M $10.000 / 1M
Total Input Tokens 78,580 78,368
Output Tokens 4,476 4,354
Reasoning Tokens 15,470 12,498
Response Time (avg) 9.04s 6.99s
Response Time (max) 53.91s 50.74s
Response Time (total) 198.97s 153.75s
Parameters ~2T total (~150B 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.

#13 GPT-5.6 Sol

low
Cost
$0.062
Time
26.7s
Tokens
2,150 tok

#11 GPT-6.1 Sol

medium
Cost
$0.045
Time
72.7s
Tokens
4,581 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-5.6 Sol 10.0 10.0 100.0% 0 11.25s 7,302 412 3,482
GPT-6.1 Sol 10.0 10.0 100.0% 0 4.74s 7,302 393 1,710

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