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

GPT-6.1 Sol (low) leads on average score with 9.5 vs 9.4. GPT-6.1 Sol (low) has the lower benchmark cost at $0.275 vs $0.508. GPT-6.1 Sol (low) is faster at 5.36s vs 12.63s, with pass rates of 90.9% vs 92.4%.

Last updated at: 2026-09-29

Compared models

Rank
#20
Total Output Tokens
34,977
Response Time (avg)
12.63s
Total Cost
$0.508
Rank
#16
Total Output Tokens
11,879
Response Time (avg)
5.36s
Total Cost
$0.275
Recommended model GPT-6.1 Sol (low)

It has the best score here (9.5), while costing about 1.8x less than GPT-5.6 Sol (medium).

Detailed comparison

Metric GPT-5.6 Sol GPT-5.6 Sol medium Release: 2026-07-09 GPT-6.1 Sol GPT-6.1 Sol low Release: 2026-09-29
Score 9.4 9.5
Rank #20 #16
Reliability 10.0 10.0
Consistency 8.9 9.6
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 90.9% 92.4%
Flaky tests 3 1
Total Runs 66 66
Cost per result 8.025 1.375
Total Cost $0.508 $0.275
Input Price $2.000 / 1M $2.000 / 1M
Output Price $10.000 / 1M $10.000 / 1M
Total Input Tokens 79,006 78,018
Output Tokens 4,696 4,160
Reasoning Tokens 30,281 7,719
Response Time (avg) 12.63s 5.36s
Response Time (max) 79.40s 29.38s
Response Time (total) 277.88s 117.89s
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.

#20 GPT-5.6 Sol

medium
Cost
$0.124
Time
57.2s
Tokens
4,199 tok

#16 GPT-6.1 Sol

low
Cost
$0.028
Time
44.6s
Tokens
2,881 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 9.40s 7,302 394 4,706
GPT-6.1 Sol 10.0 10.0 100.0% 0 4.48s 7,302 388 1,286

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