GPT-5.5 vs GPT-5.6 Sol

Compared models

Rank: #219
Total Output Tokens: 6,197
Response Time (avg): 4.75s
Total Cost: $1.212

Rank: #216
Total Output Tokens: 5,555
Response Time (avg): 4.61s
Total Cost: $0.795

Recommended model GPT-5.6 Sol

It has the best score here (6.7), while costing about 1.5x less than GPT-5.5.

Detailed comparison

Metric	GPT-5.5 GPT-5.5 none Release: 2026-04-24	GPT-5.6 Sol GPT-5.6 Sol none Release: 2026-07-09

Metric	GPT-5.5 GPT-5.5 none Release: 2026-04-24	GPT-5.6 Sol GPT-5.6 Sol none Release: 2026-07-09
Score	6.6	6.7
Rank	#219	#216
Reliability	10.0	10.0
Consistency	9.3	9.1
Attempts	69/69	69/69
Tests Correct
Attempt pass rate	56.5%	60.9%
Flaky tests	2	3
Total Runs	69	69
Cost per result	10.096	6.619
Total Cost	$1.212	$0.795
Input Price	$5.000 / 1M	$2.000 / 1M
Output Price	$30.000 / 1M	$10.000 / 1M
Cache Read Price	$0.500 / 1M	$0.200 / 1M
Cache Write Price	N/A	$2.500 / 1M
Total Input Tokens	205,108	207,852
Output Tokens	6,197	5,555
Reasoning Tokens	0	0
Response Time (avg)	4.75s	4.61s
Response Time (max)	57.53s	58.28s
Response Time (total)	109.31s	105.93s
Parameters	~1.5T total (~100B 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.

#219 GPT-5.5

none

Cost: $0.090
Time: 54.3s
Tokens: 3,063 tok

#216 GPT-5.6 Sol

none

Cost: $0.116
Time: 78.7s
Tokens: 3,944 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

Category:

Agentic	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.5	5.0	10.0	0.0%	0		57.53s	125,814	1,282	0
GPT-5.6 Sol	5.0	10.0	0.0%	0		58.28s	129,250	1,198	0

Anti-AI Tricks	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.5	6.9	7.9	66.7%	1		1.31s	606	213	0
GPT-5.6 Sol	8.3	10.0	75.0%	0		1.27s	606	154	0

Coding	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.5	5.5	10.0	33.3%	0		1.35s	7,305	462	0
GPT-5.6 Sol	5.5	10.0	33.3%	0		1.39s	7,302	390	0

Combined	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.5	6.5	10.0	50.0%	0		8.90s	56,092	3,244	0
GPT-5.6 Sol	6.5	10.0	50.0%	0		8.37s	55,394	2,881	0

Data parsing and extraction	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.5	10.0	10.0	100.0%	0		1.18s	7,140	222	0
GPT-5.6 Sol	10.0	10.0	100.0%	0		1.53s	7,140	222	0

Domain specific	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.5	5.3	10.0	33.3%	0		1.27s	732	52	0
GPT-5.6 Sol	5.9	7.2	55.6%	1		1.44s	732	54	0

General Intelligence	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.5	10.0	10.0	100.0%	0		3.41s	477	124	0
GPT-5.6 Sol	6.5	3.4	66.7%	1		1.52s	477	91	0

Instructions following	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.5	6.2	5.8	66.7%	1		1.15s	660	81	0
GPT-5.6 Sol	8.5	6.8	83.3%	1		1.33s	660	84	0

Puzzle Solving	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.5	7.7	10.0	66.7%	0		1.29s	642	252	0
GPT-5.6 Sol	7.7	10.0	66.7%	0		1.49s	642	211	0

Tool Calling	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.5	10.0	10.0	100.0%	0		3.90s	5,445	247	0
GPT-5.6 Sol	10.0	10.0	100.0%	0		3.70s	5,454	246	0

Trivia	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.5	3.0	10.0	0.0%	0		5.01s	195	18	0
GPT-5.6 Sol	3.0	10.0	0.0%	0		1.95s	195	24	0

Switch Comparison Pair

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