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DeepSeek: DeepSeek V4 Flash vs StepFun: Step 3.7 Flash

Summary

DeepSeek V4 Flash (high) vs Step 3.7 Flash (medium) benchmark comparison: Step 3.7 Flash (medium) leads on average score with 8.5 vs 8.3. DeepSeek V4 Flash (high) has the lower benchmark cost at $0.027 vs $0.376. Step 3.7 Flash (medium) is faster at 20.35s vs 45.85s, with pass rates of 74.6% vs 73.0%.

Recommended model: DeepSeek V4 Flash (high) - Its score stays close to the best score here (8.3 vs 8.5), while costing about 14.4x less than Step 3.7 Flash (medium).

Last updated at: 2026-07-10

Metric DeepSeek V4 Flash DeepSeek V4 Flash high Release: 2026-04-24 Step 3.7 Flash Step 3.7 Flash medium Release: 2026-05-29
Score 8.3 8.5
Rank #27 #23
Reliability 10.0 9.9
Consistency 8.5 9.3
Tests Correct
Attempt pass rate 74.6% 73.0%
Flaky tests 4 2
Total Runs 63 61
Cost per result 0.299 2.686
Total Cost $0.027 $0.376
Input Price $0.090 / 1M $0.200 / 1M
Output Price $0.180 / 1M $1.150 / 1M
Total Input Tokens 39,745 39,981
Output Tokens 10,310 319,958
Reasoning Tokens 123,501 0
Response Time (avg) 45.85s 20.35s
Response Time (max) 218.13s 113.98s
Response Time (total) 962.79s 427.42s

Generation showcase

Hamster playing table tennis

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

#27 DeepSeek V4 Flash

high
Cost
$0.003
Time
93.1s
Tokens
7,926 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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
DeepSeek V4 Flash 8.3 10.0 75.0% 0 28.51s 540 140 7,770
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
DeepSeek V4 Flash 7.8 10.0 66.7% 0 50.60s 7,279 395 34,862
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
DeepSeek V4 Flash 10.0 10.0 100.0% 0 76.57s 14,016 465 7,347
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
DeepSeek V4 Flash 10.0 10.0 100.0% 0 28.03s 7,290 201 1,179
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
DeepSeek V4 Flash 4.1 4.4 44.5% 2 100.31s 666 27 59,249
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
DeepSeek V4 Flash 6.1 3.1 66.7% 1 25.15s 471 79 632
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
DeepSeek V4 Flash 10.0 10.0 100.0% 0 15.36s 627 63 1,622
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
DeepSeek V4 Flash 8.2 7.2 88.9% 1 26.11s 594 196 1,767
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
DeepSeek V4 Flash 10.0 10.0 100.0% 0 74.73s 8,079 228 542
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
DeepSeek V4 Flash 3.0 10.0 0.0% 0 54.46s 183 8,516 8,531
Step 3.7 Flash 3.0 10.0 0.0% 0 113.98s 237 139,164 0

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