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

The average score is effectively tied at 9.6 vs 9.6. GPT-6.1 Sol (high) has the lower benchmark cost at $0.755 vs $1.244. GPT-5.6 Sol (low) is faster at 11.13s vs 15.46s, with pass rates of 87.0% vs 94.2%.

Last updated at: 2026-10-07

Compared models

Rank
#13
Total Output Tokens
22,557
Response Time (avg)
11.13s
Total Cost
$1.244
Rank
#12
Total Output Tokens
40,508
Response Time (avg)
15.46s
Total Cost
$0.755
Recommended model GPT-6.1 Sol (high)

It has the best score here (9.6), while costing about 1.6x less than GPT-5.6 Sol (low).

Detailed comparison

Metric GPT-5.6 Sol GPT-5.6 Sol low Release: 2026-07-09 GPT-6.1 Sol GPT-6.1 Sol high Release: 2026-09-29
Score 9.6 9.6
Rank #13 #12
Reliability 10.0 10.0
Consistency 9.3 9.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 87.0% 94.2%
Flaky tests 2 1
Total Runs 69 69
Cost per result 6.545 3.596
Total Cost $1.244 $0.755
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 191,653 174,960
Output Tokens 5,473 5,780
Reasoning Tokens 17,084 34,728
Response Time (avg) 11.13s 15.46s
Response Time (max) 57.11s 139.76s
Response Time (total) 256.08s 355.66s
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.

#13 GPT-5.6 Sol

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

#12 GPT-6.1 Sol

high
Cost
$0.079
Time
149.5s
Tokens
7,920 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 5.18s 7,302 390 2,215

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