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GPT-5.6 Sol (medium) vs GPT-6 Sol (medium)

The average score is effectively tied at 9.4 vs 9.4. GPT-6 Sol (medium) has the lower benchmark cost at $0.448 vs $0.508. GPT-6 Sol (medium) is faster at 10.33s vs 12.63s, with pass rates of 90.9% vs 93.9%.

Last updated at: 2026-09-23

Compared models

Rank
#15
Total Output Tokens
34,977
Response Time (avg)
12.63s
Total Cost
$0.508
Rank
#14
Total Output Tokens
29,115
Response Time (avg)
10.33s
Total Cost
$0.448
Recommended model GPT-6 Sol (medium)

It has the strongest score in this comparison (9.4) 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 medium Release: 2026-07-09 GPT-6 Sol GPT-6 Sol medium Release: 2026-09-23
Score 9.4 9.4
Rank #15 #14
Reliability 10.0 10.0
Consistency 8.9 9.6
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 90.9% 93.9%
Flaky tests 3 1
Total Runs 66 66
Cost per result 8.025 2.240
Total Cost $0.508 $0.448
Input Price $2.000 / 1M $2.000 / 1M
Output Price $10.000 / 1M $10.000 / 1M
Total Input Tokens 79,006 78,376
Output Tokens 4,696 4,309
Reasoning Tokens 30,281 24,806
Response Time (avg) 12.63s 10.33s
Response Time (max) 79.40s 82.74s
Response Time (total) 277.88s 227.17s
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.

#15 GPT-5.6 Sol

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

#14 GPT-6 Sol

medium
Cost
$0.035
Time
36.9s
Tokens
3,493 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 Sol 8.2 7.2 88.9% 1 11.78s 7,302 392 2,532

Quick Compare

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