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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 medium Release: Unknown release date
Rank #11 #16
Score 7.00 6.29
Consistency 8.32 8.20
Cost per result 0.000 0.532
Total Cost $0.000 $0.043
Tests Correct
Wrong Tests 5 6
Attempt pass rate 73.8% 66.7%
Flaky tests 3 3
Output Tokens 60,502 793
Reasoning Tokens 117,044 74,056

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 10.00 10.00 100.0% 0 102 4,021
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 5,472
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 12 40,547
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 5.50 10.00 50.0% 0 48 3,151
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 4.67 7.20 44.4% 1 191 9,380
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% 1 260 11,485

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