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

Last updated at: 2026-03-12

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
Rank #3 #4
Avg Score 8.5 8.4
Consistency 8.7 9.1
Cost per result 0.870 4.485
Total Cost $0.105 $0.539
Tests Correct
Attempt pass rate 87.5% 83.3%
Flaky tests 3 2
Total Runs 48 48
Output Tokens 2,815 1,764
Reasoning Tokens 44,618 33,348
Response Time (avg) 29.39s 16.59s
Response Time (max) 168.71s 100.93s
Response Time (total) 470.29s 265.39s

Top Models by Score

Score vs Total Cost

Response Time (avg)

Avg Score vs Response Time (avg)

Total Output Tokens

Avg 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 10.0 10.0 100.0% 0 23.34s 990 7,037
GPT-5.3-Codex 10.0 10.0 100.0% 0 4.69s 216 1,421
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 9.9 10.0 100.0% 0 9.07s 246 1,742
GPT-5.3-Codex 9.9 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 4.0 7.2 55.6% 1 88.74s 15 23,897
GPT-5.3-Codex 4.0 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 7.0 3.6 66.7% 1 18.25s 304 1,620
GPT-5.3-Codex 4.0 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 9.3 7.9 88.9% 1 11.03s 461 3,532
GPT-5.3-Codex 9.3 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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