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

Summary

Seed-2.0-Lite vs GPT-5.3-Codex benchmark comparison: GPT-5.3-Codex leads on average score with 8.4 vs 8.2. Seed-2.0-Lite has the lower benchmark cost at $0.175 vs $0.740. GPT-5.3-Codex is faster at 16.22s vs 47.07s, with pass rates of 76.2% vs 82.5%.

Recommended model: Seed-2.0-Lite - Its score stays close to the best score here (8.2 vs 8.4), while costing about 4.2x less than GPT-5.3-Codex.

Last updated at: 2026-06-10

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 8.2 8.4
Rank #20 #16
Reliability 10.0 10.0
Consistency 9.0 8.5
Tests Correct
Attempt pass rate 76.2% 82.5%
Flaky tests 3 4
Total Runs 63 63
Cost per result 1.250 4.932
Total Cost $0.175 $0.740
Input Price $0.250 / 1M $1.750 / 1M
Output Price $2.000 / 1M $14.000 / 1M
Total Input Tokens 46,740 34,299
Output Tokens 3,230 2,357
Reasoning Tokens 78,406 46,189
Response Time (avg) 47.07s 16.22s
Response Time (max) 254.92s 100.93s
Response Time (total) 988.37s 340.67s

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

#16 GPT-5.3-Codex

medium
Cost
$0.049
Time
54.9s
Tokens
3,580 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
GPT-5.3-Codex 8.7 7.9 91.7% 1 4.16s 606 240 1,722
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
GPT-5.3-Codex 10.0 10.0 100.0% 0 19.50s 7,302 535 10,890
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
GPT-5.3-Codex 10.0 10.0 100.0% 0 19.56s 11,019 364 2,731
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
GPT-5.3-Codex 10.0 10.0 100.0% 0 3.07s 7,140 234 728
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
GPT-5.3-Codex 5.9 7.2 55.6% 1 64.31s 813 64 25,308
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
GPT-5.3-Codex 4.6 10.0 0.0% 0 4.87s 477 187 331
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
GPT-5.3-Codex 10.0 10.0 100.0% 0 3.04s 660 93 693
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
GPT-5.3-Codex 9.0 7.9 88.9% 1 5.05s 642 356 1,593
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
GPT-5.3-Codex 10.0 10.0 100.0% 0 6.37s 5,445 254 492
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
GPT-5.3-Codex 2.8 1.6 33.3% 1 14.43s 195 30 1,701

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