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StepFun: Step 3.5 Flash vs xAI: Grok 4.1 Fast

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Last updated at : 2026-02-27 15:16

Summary

Metric StepFun: Step 3.5 Flash medium Release: Unknown release date Free Available xAI: Grok 4.1 Fast none Release: Unknown release date
Rank #11 #38
Score 7.00 3.00
Consistency 8.32 8.69
Cost per result 0.000 0.176
Total Cost $0.000 $0.006
Tests Correct
Wrong Tests 5 11
Attempt pass rate 73.8% 28.6%
Flaky tests 3 2
Output Tokens 60,502 931
Reasoning Tokens 117,044 0

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
StepFun: Step 3.5 Flash 10.00 10.00 100.0% 0 13,924 17,208
xAI: Grok 4.1 Fast 1.33 10.00 0.0% 0 229 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
StepFun: Step 3.5 Flash 10.00 10.00 100.0% 0 535 11,548
xAI: Grok 4.1 Fast 10.00 10.00 100.0% 0 180 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
StepFun: Step 3.5 Flash 4.00 7.21 44.4% 1 40,942 74,237
xAI: Grok 4.1 Fast 4.00 7.21 55.6% 1 15 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
StepFun: Step 3.5 Flash 10.00 10.00 100.0% 0 2,121 3,274
xAI: Grok 4.1 Fast 1.00 10.00 0.0% 0 66 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
StepFun: Step 3.5 Flash 2.00 4.96 33.3% 2 2,705 6,975
xAI: Grok 4.1 Fast 1.00 9.48 0.0% 0 233 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
StepFun: Step 3.5 Flash 10.00 10.00 100.0% 0 275 3,802
xAI: Grok 4.1 Fast 1.00 1.62 33.3% 1 208 0

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