head-to-head

Google: Gemini 4 Carbon vs OpenAI: GPT-6 Sol Pro

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-11-12.

The verdict

For a sample job of 1 million input tokens and 250,000 output tokens, both cost $4.50 at current list prices.

Both take in a similar amount of text: 1,048,576 and 1,050,000 tokens, about 1,573 and 1,575 pages.

Only Gemini 4 Carbon offers audio input and video input.

Across the 18 tasks where they differ, Gemini 4 Carbon scores higher on 18 (SQL Generation, Code Review, Code Completion and others).

Gemini 4 Carbon was released in November 2026 and GPT-6 Sol Pro in September 2026.

Pick Gemini 4 Carbon if you need audio input, video input or the stronger all-round task scores.

Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.

Task	Google: Gemini 4 Carbon	OpenAI: GPT-6 Sol Pro
SQL Generation	144	132
Code Review	150	132
Code Completion	119	117
Code Refactoring	151	136
Bug Fixing	154	136
Unit Test Generation	135	124
Code Documentation	138	129
Regex Writing	127	117
CI/CD Pipelines	131	120
Frontend Component Design	133	122
Data Analysis	138	124
CSV / Spreadsheet Cleanup	136	132
ETL Scripting	141	128
OCR / Document Parsing	135	131
Table Extraction from PDFs	135	131
Long-Document Summarization	152	136
Short-Form Summarization	118	113
Blog Post Writing	132	120

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