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

Summary

Seed-2.0-Lite vs Step 3.7 Flash benchmark comparison: Seed-2.0-Lite leads on average score with 8.2 vs 7.3. Seed-2.0-Lite has the lower benchmark cost at $0.175 vs $0.341. Step 3.7 Flash is faster at 15.74s vs 47.07s, with pass rates of 76.2% vs 68.3%.

Recommended model: Seed-2.0-Lite - It has the best score here (8.2), while costing about 1.9x less than Step 3.7 Flash.

Last updated at: 2026-06-10

Metric Seed-2.0-Lite Seed-2.0-Lite medium Release: 2026-02-14 Step 3.7 Flash Step 3.7 Flash low Release: 2026-05-29
Score 8.2 7.3
Rank #20 #58
Reliability 10.0 10.0
Consistency 9.0 8.4
Tests Correct
Attempt pass rate 76.2% 68.3%
Flaky tests 3 4
Total Runs 63 63
Cost per result 1.250 2.840
Total Cost $0.175 $0.341
Input Price $0.250 / 1M $0.200 / 1M
Output Price $2.000 / 1M $1.150 / 1M
Total Input Tokens 46,740 40,101
Output Tokens 3,230 289,325
Reasoning Tokens 78,406 0
Response Time (avg) 47.07s 15.74s
Response Time (max) 254.92s 124.75s
Response Time (total) 988.37s 330.63s

Generation showcase

Hamster playing table tennis

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

#20 Seed-2.0-Lite

medium
Cost
$0.005
Time
86.7s
Tokens
2,354 tok

#58 Step 3.7 Flash

low
Invalid SVG
Cost
$0.004
Time
25.3s
Tokens
3,072 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
Seed-2.0-Lite 8.3 10.0 75.0% 0 17.99s 942 996 7,142
Step 3.7 Flash 8.7 7.9 91.7% 1 4.02s 756 10,896 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Seed-2.0-Lite 8.0 9.8 66.7% 0 156.74s 8,247 458 31,890
Step 3.7 Flash 8.2 7.2 88.9% 1 9.46s 7,437 18,685 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Seed-2.0-Lite 10.0 10.0 100.0% 0 37.67s 16,254 506 4,299
Step 3.7 Flash 10.0 10.0 100.0% 0 7.98s 13,683 6,426 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Seed-2.0-Lite 10.0 10.0 100.0% 0 9.07s 8,562 246 1,742
Step 3.7 Flash 7.3 5.8 83.3% 1 2.29s 7,398 2,667 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Seed-2.0-Lite 5.9 7.2 55.6% 1 88.74s 843 15 23,897
Step 3.7 Flash 5.3 7.2 44.4% 1 43.31s 828 104,487 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Seed-2.0-Lite 6.7 3.6 66.7% 1 18.25s 582 304 1,620
Step 3.7 Flash 3.4 9.3 0.0% 0 7.00s 525 4,604 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Seed-2.0-Lite 10.0 10.0 100.0% 0 7.26s 834 71 1,480
Step 3.7 Flash 9.8 10.0 100.0% 0 1.58s 735 1,857 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Seed-2.0-Lite 9.0 7.9 88.9% 1 10.23s 894 403 3,285
Step 3.7 Flash 5.5 9.9 33.3% 0 1.84s 756 3,564 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Seed-2.0-Lite 10.0 10.0 100.0% 0 12.38s 9,306 222 1,011
Step 3.7 Flash 10.0 10.0 100.0% 0 3.25s 7,746 1,360 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Seed-2.0-Lite 3.0 10.0 0.0% 0 48.32s 276 9 2,040
Step 3.7 Flash 3.0 10.0 0.0% 0 124.75s 237 134,779 0

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