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ByteDance Seed: Seed-2.0-Lite vs StepFun: Step 3.7 Flash

Last updated at: 2026-05-29

Metric Seed-2.0-Lite Seed-2.0-Lite medium Release: 2026-02-14 Step 3.7 Flash Step 3.7 Flash medium Release: 2026-05-29
Score 8.1 7.9
Rank #24 #32
Reliability 10.0 9.9
Consistency 8.9 9.2
Tests Correct
Attempt pass rate 75.0% 71.7%
Flaky tests 3 2
Total Runs 60 58
Cost per result 1.166 2.663
Total Cost $0.152 $0.347
Input Price $0.250 / 1M $0.200 / 1M
Output Price $2.000 / 1M $1.150 / 1M
Output Tokens 3,224 294,481
Reasoning Tokens 67,040 0
Response Time (avg) 36.67s 18.32s
Response Time (max) 168.71s 113.98s
Response Time (total) 733.46s 366.45s

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) Output Tokens Reasoning Tokens
Seed-2.0-Lite 8.3 10.0 75.0% 0 17.99s 996 7,142
Step 3.7 Flash 8.7 7.9 91.7% 1 9.65s 32,185 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Lite 7.0 9.7 50.0% 0 107.65s 452 20,524
Step 3.7 Flash 8.2 6.7 83.3% 1 10.64s 19,320 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Lite 10.0 10.0 100.0% 0 37.67s 506 4,299
Step 3.7 Flash 10.0 10.0 100.0% 0 9.06s 7,106 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Lite 10.0 10.0 100.0% 0 9.07s 246 1,742
Step 3.7 Flash 10.0 10.0 100.0% 0 2.75s 3,020 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Lite 5.9 7.2 55.6% 1 88.74s 15 23,897
Step 3.7 Flash 7.7 10.0 66.7% 0 48.27s 70,347 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Lite 6.7 3.6 66.7% 1 18.25s 304 1,620
Step 3.7 Flash 4.0 10.0 0.0% 0 6.85s 3,987 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Lite 10.0 10.0 100.0% 0 7.26s 71 1,480
Step 3.7 Flash 9.8 10.0 100.0% 0 1.83s 2,166 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Lite 9.0 7.9 88.9% 1 10.23s 403 3,285
Step 3.7 Flash 5.7 9.9 33.3% 0 6.19s 15,071 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Lite 10.0 10.0 100.0% 0 12.38s 222 1,011
Step 3.7 Flash 10.0 10.0 100.0% 0 4.16s 2,115 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Lite 3.0 10.0 0.0% 0 48.32s 9 2,040
Step 3.7 Flash 3.0 10.0 0.0% 0 113.98s 139,164 0

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