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OpenAI: GPT-5.4 Mini vs ByteDance Seed: Seed-2.0-Lite

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-06-18.

OpenAI: GPT-5.4 Mini ByteDance Seed: Seed-2.0-Lite
Vendoropenaibytedance-seed
Quality Score100100
Benchmark Score81.0-
Input Price$0.75/M$0.25/M
Output Price$4.50/M$2.00/M
Context Window400,000262,144
Max Output128,000131,072
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index66.0-
ai_index_agentic97.1-
ai_index_coding84.9-

Who wins by task?

TaskOpenAI: GPT-5.4 MiniByteDance Seed: Seed-2.0-Lite
SQL Generation 169 131
Code Review 163 126
Code Completion 132 128
Code Refactoring 161 127
Bug Fixing 179 130
Unit Test Generation 151 121
Code Documentation 141 126
Regex Writing 134 119
CI/CD Pipelines 142 117
Frontend Component Design 144 122
Data Analysis 169 124
CSV / Spreadsheet Cleanup 151 128
ETL Scripting 151 122
JSON Extraction 146 131
Bulk Data Labeling 133 129
OCR / Document Parsing 144 128
Table Extraction from PDFs 144 128
Long-Document Summarization 157 129
Short-Form Summarization 130 123
Blog Post Writing 138 119

Scores reflect capability match + benchmark data + pricing for each task. Methodology →

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