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

The average score is effectively tied at 9.5 vs 9.5. GPT-6 Sol (medium) has the lower benchmark cost at $0.703 vs $1.595. GPT-6 Sol (medium) is faster at 12.12s vs 13.59s, with pass rates of 89.9% vs 94.2%.

Last updated at: 2026-10-26

Compared models

Rank
#24
Total Output Tokens
32,071
Response Time (avg)
13.59s
Total Cost
$1.595
Rank
#20
Total Output Tokens
31,387
Response Time (avg)
12.12s
Total Cost
$0.703
Recommended model GPT-6 Sol (medium)

It has the best score here (9.5), while costing about 2.3x less than GPT-5.6 Sol (high).

Detailed comparison

Metric GPT-5.6 Sol GPT-5.6 Sol high Release: 2026-07-09 GPT-6 Sol GPT-6 Sol medium Release: 2026-09-23
Score 9.5 9.5
Rank #24 #20
Reliability 10.0 10.0
Consistency 8.9 9.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 89.9% 94.2%
Flaky tests 3 1
Total Runs 69 69
Cost per result 8.020 3.348
Total Cost $1.595 $0.703
Input Price $2.000 / 1M $2.000 / 1M
Output Price $10.000 / 1M $10.000 / 1M
Cache Read Price $0.200 / 1M $0.200 / 1M
Cache Write Price $2.500 / 1M $2.500 / 1M
Total Input Tokens 195,567 194,520
Output Tokens 5,841 5,396
Reasoning Tokens 26,230 25,991
Response Time (avg) 13.59s 12.12s
Response Time (max) 59.99s 82.74s
Response Time (total) 312.61s 278.70s
Parameters ~2T total (~150B active) ~2T total (~150B active)
Availability Closed Closed

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#24 GPT-5.6 Sol

high
Cost
$0.151
Time
201.9s
Tokens
5,100 tok

#20 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 12.52s 7,302 404 5,656
GPT-6 Sol 8.2 7.2 88.9% 1 11.78s 7,302 392 2,532

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