Mercury 2 (medium) vs GPT-5.5

Recommended model Mercury 2 (medium)

It has the best score here (7.0), while costing about 5.8x less than GPT-5.5.

Detailed comparison

Metric	Mercury 2 Mercury 2 medium Release: 2026-02-24	GPT-5.5 GPT-5.5 none Release: 2026-04-24

Metric	Mercury 2 Mercury 2 medium Release: 2026-02-24	GPT-5.5 GPT-5.5 none Release: 2026-04-24
Score	7.0	7.0
Rank	#136	#135
Reliability	10.0	10.0
Consistency	8.4	9.2
Attempts	66/66	66/66
Tests Correct
Attempt pass rate	53.0%	59.1%
Flaky tests	4	2
Total Runs	66	66
Cost per result	0.933	4.533
Total Cost	$0.094	$0.544
Input Price	$0.250 / 1M	$5.000 / 1M
Output Price	$0.750 / 1M	$30.000 / 1M
Total Input Tokens	110,515	79,294
Output Tokens	10,325	4,915
Reasoning Tokens	77,229	0
Response Time (avg)	2.95s	2.35s
Response Time (max)	14.63s	12.24s
Response Time (total)	61.89s	51.78s
Parameters	~100B	~1.5T total (~100B active)
Availability	Closed	Closed

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

medium

none

Category:

Anti-AI Tricks	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
Mercury 2	6.9	9.9	50.0%	0		1.12s	554	2,546	2,609
GPT-5.5	6.9	7.9	66.7%	1		1.31s	606	213	0

Coding	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
Mercury 2	8.2	7.7	77.8%	1		2.04s	7,065	296	11,328
GPT-5.5	5.5	10.0	33.3%	0		1.35s	7,305	462	0

Combined	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
Mercury 2	6.7	9.1	50.0%	0		7.84s	87,365	6,533	20,474
GPT-5.5	6.5	10.0	50.0%	0		8.90s	56,092	3,244	0

Data parsing and extraction	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
Mercury 2	7.3	5.9	83.3%	1		1.11s	6,234	183	1,656
GPT-5.5	10.0	10.0	100.0%	0		1.18s	7,140	222	0

Domain specific	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
Mercury 2	2.9	4.4	22.2%	2		8.06s	1,638	53	31,177
GPT-5.5	5.3	10.0	33.3%	0		1.27s	732	52	0

General Intelligence	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
Mercury 2	4.8	10.0	0.0%	0		821ms	456	137	542
GPT-5.5	10.0	10.0	100.0%	0		3.41s	477	124	0

Instructions following	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
Mercury 2	10.0	10.0	100.0%	0		1.07s	340	14	958
GPT-5.5	6.2	5.8	66.7%	1		1.15s	660	81	0

Puzzle Solving	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
Mercury 2	5.4	10.0	33.3%	0		949ms	601	361	2,781
GPT-5.5	7.7	10.0	66.7%	0		1.29s	642	252	0

Tool Calling	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
Mercury 2	10.0	10.0	100.0%	0		1.89s	6,080	180	1,956
GPT-5.5	10.0	10.0	100.0%	0		3.90s	5,445	247	0

Trivia	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
Mercury 2	3.0	10.0	0.0%	0		2.58s	182	22	3,748
GPT-5.5	3.0	10.0	0.0%	0		5.01s	195	18	0

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