head-to-head

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

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.

OpenAI: GPT-5.4 Nano ByteDance Seed: Seed-2.0-Lite
Vendoropenaibytedance-seed
Quality Score100100
Benchmark Score31.5-
Input Price$0.20/M$0.25/M
Output Price$1.25/M$2.00/M
Context Window400,000262,144
Max Output128,000131,072
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio--
Benchmark Scores
ai_index34.2-

Who wins by task?

TaskOpenAI: GPT-5.4 NanoByteDance Seed: Seed-2.0-Lite
SQL Generation 138 131
Code Review 138 126
Code Completion 132 128
Code Refactoring 141 127
Bug Fixing 142 130
Unit Test Generation 128 121
Code Documentation 134 126
Regex Writing 123 119
CI/CD Pipelines 124 117
Frontend Component Design 126 122
Data Analysis 129 124
CSV / Spreadsheet Cleanup 135 128
ETL Scripting 132 122
JSON Extraction 131 131
Bulk Data Labeling 129 129
OCR / Document Parsing 132 128
Table Extraction from PDFs 132 128
Long-Document Summarization 143 129
Short-Form Summarization 125 123
Blog Post Writing 126 119

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

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