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ByteDance Seed: Seed-2.0-Lite vs OpenAI: GPT-5.3-Codex

Last updated at: 2026-04-26

Metric Seed-2.0-Lite Seed-2.0-Lite medium Release: 2026-02-14 GPT-5.3-Codex GPT-5.3-Codex medium Release: 2026-02-05
Score 8.6 8.6
Rank #8 #9
Reliability N/A N/A
Consistency 8.8 8.7
Tests Correct
Attempt pass rate 83.3% 83.3%
Flaky tests 3 3
Total Runs 54 54
Cost per result 0.926 4.405
Total Cost $0.121 $0.573
Input Price $0.250 / 1M $1.750 / 1M
Output Price $2.000 / 1M $14.000 / 1M
Output Tokens 3,257 2,279
Reasoning Tokens 52,042 35,179
Response Time (avg) 30.37s 15.38s
Response Time (max) 168.71s 100.93s
Response Time (total) 546.72s 276.91s

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
GPT-5.3-Codex 8.7 7.9 91.7% 1 4.16s 240 1,722
Coding 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 74.49s 436 7,319
GPT-5.3-Codex 10.0 10.0 100.0% 0 8.95s 491 1,530
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
GPT-5.3-Codex 10.0 10.0 100.0% 0 19.56s 364 2,731
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
GPT-5.3-Codex 10.0 10.0 100.0% 0 3.07s 234 728
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
GPT-5.3-Codex 5.9 7.2 55.6% 1 64.31s 64 25,308
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
GPT-5.3-Codex 4.6 10.0 0.0% 0 4.87s 187 331
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
GPT-5.3-Codex 10.0 10.0 100.0% 0 3.04s 93 693
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 11.03s 461 3,532
GPT-5.3-Codex 9.0 7.9 88.9% 1 5.12s 352 1,644
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
GPT-5.3-Codex 10.0 10.0 100.0% 0 6.37s 254 492

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