AI BENCHY Compare

OpenAI: GPT-5.6 Terra vs StepFun: Step 3.7 Flash

Summary

Step 3.7 Flash (medium) leads on average score with 8.5 vs 7.7. GPT-5.6 Terra (low) has the lower benchmark cost at $0.343 vs $0.376. GPT-5.6 Terra (low) is faster at 4.88s vs 20.35s, with pass rates of 74.6% vs 73.0%.

Recommended modelGPT-5.6 Terra (low)Its score stays close to the best score here (7.7 vs 8.5), while responding about 4.2x faster than Step 3.7 Flash (medium).

Last updated at: 2026-07-14

Metric	GPT-5.6 Terra GPT-5.6 Terra low Release: 2026-07-09	Step 3.7 Flash Step 3.7 Flash medium Release: 2026-05-29

Metric	GPT-5.6 Terra GPT-5.6 Terra low Release: 2026-07-09	Step 3.7 Flash Step 3.7 Flash medium Release: 2026-05-29
Score	7.7	8.5
Rank	#49	#23
Reliability	10.0	9.9
Consistency	8.1	9.3
Tests Correct
Attempt pass rate	74.6%	73.0%
Flaky tests	5	2
Total Runs	63	61
Cost per result	2.637	2.686
Total Cost	$0.343	$0.376
Input Price	$2.500 / 1M	$0.200 / 1M
Output Price	$15.000 / 1M	$1.150 / 1M
Total Input Tokens	34,226	39,981
Output Tokens	1,943	319,958
Reasoning Tokens	15,201	0
Response Time (avg)	4.88s	20.35s
Response Time (max)	19.85s	113.98s
Response Time (total)	102.53s	427.42s

Generation showcase

Hamster playing table tennis

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

#49 GPT-5.6 Terra

low

Cost: $0.034
Time: 16.8s
Tokens: 2,348 tok

#23 Step 3.7 Flash

medium

Cost: $0.006
Time: 46.2s
Tokens: 4,466 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:

Anti-AI Tricks	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	8.3	10.0	75.0%	0		2.36s	606	171	602
Step 3.7 Flash	8.7	7.9	91.7%	1		9.65s	756	32,185	0

Coding	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	6.6	4.6	77.8%	2		9.56s	7,302	429	6,821
Step 3.7 Flash	8.8	7.8	88.9%	1		27.42s	7,437	44,797	0

Combined	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	10.0	10.0	100.0%	0		5.07s	11,019	312	349
Step 3.7 Flash	10.0	10.0	100.0%	0		9.06s	13,683	7,106	0

Data parsing and extraction	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	10.0	10.0	100.0%	0		919ms	7,140	222	0
Step 3.7 Flash	10.0	10.0	100.0%	0		2.75s	7,398	3,020	0

Domain specific	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	5.3	7.2	44.4%	1		8.34s	723	72	4,086
Step 3.7 Flash	7.7	10.0	66.7%	0		48.27s	708	70,347	0

General Intelligence	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	4.8	3.2	33.3%	1		3.52s	477	105	249
Step 3.7 Flash	4.0	10.0	0.0%	0		6.85s	525	3,987	0

Instructions following	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	10.0	10.0	100.0%	0		1.48s	660	87	134
Step 3.7 Flash	9.8	10.0	100.0%	0		1.83s	735	2,166	0

Puzzle Solving	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	10.0	10.0	100.0%	0		4.46s	642	259	1,506
Step 3.7 Flash	5.7	9.9	33.3%	0		6.19s	756	15,071	0

Tool Calling	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	4.7	1.6	66.7%	1		6.69s	5,462	257	226
Step 3.7 Flash	10.0	10.0	100.0%	0		4.16s	7,746	2,115	0

Trivia	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	3.0	10.0	0.0%	0		5.95s	195	29	1,228
Step 3.7 Flash	3.0	10.0	0.0%	0		113.98s	237	139,164	0

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