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

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-06-20.

OpenAI: GPT-5.4 Mini ByteDance Seed: Seed-2.0-Mini
Vendoropenaibytedance-seed
Quality Score100100
Benchmark Score70.8-
Input Price$0.75/M$0.10/M
Output Price$4.50/M$0.40/M
Context Window400,000262,144
Max Output128,000131,072
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index66.0-
ai_index_agentic49.8-
ai_index_coding92.5-

Who wins by task?

TaskOpenAI: GPT-5.4 MiniByteDance Seed: Seed-2.0-Mini
SQL Generation 164 131
Code Review 159 126
Code Completion 132 129
Code Refactoring 158 127
Bug Fixing 170 130
Unit Test Generation 148 121
Code Documentation 140 126
Regex Writing 132 119
CI/CD Pipelines 139 117
Frontend Component Design 141 122
Data Analysis 160 124
CSV / Spreadsheet Cleanup 151 128
ETL Scripting 149 122
JSON Extraction 146 131
Bulk Data Labeling 133 129
OCR / Document Parsing 144 128
Table Extraction from PDFs 144 128
Long-Document Summarization 154 129
Short-Form Summarization 129 123
Blog Post Writing 136 119

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

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