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

GPT-6.1 Sol (low) leads on average score with 9.6 vs 9.5. GPT-6.1 Sol (low) has the lower benchmark cost at $0.460 vs $1.595. GPT-6.1 Sol (low) is faster at 7.15s vs 13.59s, with pass rates of 89.9% vs 92.8%.

Last updated at: 2026-10-07

Compared models

Rank
#21
Total Output Tokens
32,071
Response Time (avg)
13.59s
Total Cost
$1.595
Rank
#16
Total Output Tokens
13,138
Response Time (avg)
7.15s
Total Cost
$0.460
Recommended model GPT-6.1 Sol (low)

It has the best score here (9.6), while costing about 3.5x less than GPT-5.6 Sol (high).

Detailed comparison

Metric GPT-5.6 Sol GPT-5.6 Sol high Release: 2026-07-09 GPT-6.1 Sol GPT-6.1 Sol low Release: 2026-09-29
Score 9.5 9.6
Rank #21 #16
Reliability 10.0 10.0
Consistency 8.9 9.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 89.9% 92.8%
Flaky tests 3 1
Total Runs 69 69
Cost per result 8.020 2.187
Total Cost $1.595 $0.460
Input Price $2.000 / 1M $2.000 / 1M
Output Price $10.000 / 1M $10.000 / 1M
Cache Read Price $0.200 / 1M $0.100 / 1M
Cache Write Price $2.500 / 1M $2.500 / 1M
Total Input Tokens 195,567 163,900
Output Tokens 5,841 4,958
Reasoning Tokens 26,230 8,180
Response Time (avg) 13.59s 7.15s
Response Time (max) 59.99s 46.57s
Response Time (total) 312.61s 164.47s
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.

#21 GPT-5.6 Sol

high
Cost
$0.151
Time
201.9s
Tokens
5,100 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 12.52s 7,302 404 5,656
GPT-6.1 Sol 10.0 10.0 100.0% 0 4.48s 7,302 388 1,286

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