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

Last updated at: 2026-05-29

Metric Seed-2.0-Mini Seed-2.0-Mini medium Release: 2026-02-14 Step 3.7 Flash Step 3.7 Flash high Release: 2026-05-29
Score 7.1 7.1
Rank #75 #74
Reliability 10.0 10.0
Consistency 9.2 8.2
Tests Correct
Attempt pass rate 60.0% 65.8%
Flaky tests 2 4
Total Runs 60 60
Cost per result 0.397 8.723
Total Cost $0.044 $0.960
Input Price $0.100 / 1M $0.200 / 1M
Output Price $0.400 / 1M $1.150 / 1M
Output Tokens 2,555 828,084
Reasoning Tokens 95,974 0
Response Time (avg) 80.22s 49.43s
Response Time (max) 262.83s 192.75s
Response Time (total) 1363.72s 988.58s

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-Mini 6.6 10.0 50.0% 0 74.75s 360 9,520
Step 3.7 Flash 10.0 10.0 100.0% 0 13.40s 42,656 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Mini 7.1 9.8 50.0% 0 220.48s 464 34,964
Step 3.7 Flash 3.6 4.6 25.0% 1 126.82s 164,069 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Mini 10.0 10.0 100.0% 0 262.83s 404 29,806
Step 3.7 Flash 10.0 10.0 100.0% 0 13.01s 8,802 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Mini 10.0 10.0 100.0% 0 24.27s 246 2,743
Step 3.7 Flash 10.0 10.0 100.0% 0 14.72s 23,113 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Mini 3.0 10.0 0.0% 0 0ms 0 0
Step 3.7 Flash 4.1 4.4 44.5% 2 149.64s 410,502 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Mini 5.1 3.4 33.3% 1 36.65s 213 4,210
Step 3.7 Flash 5.5 10.0 0.0% 0 4.17s 2,862 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Mini 10.0 10.0 100.0% 0 17.47s 69 2,050
Step 3.7 Flash 9.8 10.0 100.0% 0 1.52s 2,010 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Mini 8.2 7.2 88.9% 1 31.79s 527 5,667
Step 3.7 Flash 5.3 7.2 44.4% 1 10.22s 25,422 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Mini 10.0 10.0 100.0% 0 88.68s 222 5,235
Step 3.7 Flash 10.0 10.0 100.0% 0 2.79s 1,172 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Seed-2.0-Mini 3.0 10.0 0.0% 0 56.76s 50 1,779
Step 3.7 Flash 3.0 10.0 0.0% 0 149.34s 147,476 0

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