picksbymodel Get API access →
head-to-head

xAI: Grok 4.3 vs OpenAI: GPT-5.4

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-06-16.

xAI: Grok 4.3 OpenAI: GPT-5.4
Vendorx-aiopenai
Quality Score100100
Benchmark Score84.896.4
Input Price$1.25/M$2.50/M
Output Price$2.50/M$15.00/M
Context Window1,000,0001,050,000
Max Output-128,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index87.893.7
ai_index_agentic100.0100.0
ai_index_coding67.794.5
eqbench-82.4

Who wins by task?

TaskxAI: Grok 4.3OpenAI: GPT-5.4
SQL Generation 169 179
Code Review 166 180
Code Completion 121 120
Code Refactoring 163 177
Bug Fixing 181 196
Unit Test Generation 152 162
Code Documentation 143 148
Regex Writing 136 138
CI/CD Pipelines 143 152
Frontend Component Design 145 152
Data Analysis 170 181
CSV / Spreadsheet Cleanup 150 158
ETL Scripting 153 164
JSON Extraction 136 137
Bulk Data Labeling 125 122
OCR / Document Parsing 144 149
Table Extraction from PDFs 144 149
Long-Document Summarization 160 171
Short-Form Summarization 124 123
Blog Post Writing 140 147

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

Related comparisons

MoonshotAI: Kimi K2.7 Code vs xAI: Grok 4.3 MoonshotAI: Kimi K2.7 Code vs OpenAI: GPT-5.4 Qwen: Qwen3.7 Plus vs xAI: Grok 4.3 Qwen: Qwen3.7 Plus vs OpenAI: GPT-5.4 MiniMax: MiniMax M3 vs xAI: Grok 4.3 MiniMax: MiniMax M3 vs OpenAI: GPT-5.4 StepFun: Step 3.7 Flash vs xAI: Grok 4.3 StepFun: Step 3.7 Flash vs OpenAI: GPT-5.4