head-to-head

Google: Gemini 4 Carbon (batch) vs OpenAI: GPT-6.1 Terra

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 $2.25 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 (batch) offers audio input and video input.

On our blended benchmark score Gemini 4 Carbon (batch) leads 98.9 to 83.7.

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

Gemini 4 Carbon (batch) was released in November 2026 and GPT-6.1 Terra in October 2026.

Pick Gemini 4 Carbon (batch) if you need audio input, video input, benchmark performance 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 (batch)	OpenAI: GPT-6.1 Terra
SQL Generation	145	143
Code Review	150	148
Code Completion	120	120
Code Refactoring	151	149
Bug Fixing	154	152
Unit Test Generation	135	134
Code Documentation	139	138
Regex Writing	128	127
CI/CD Pipelines	131	130
Frontend Component Design	133	132
Data Analysis	138	136
CSV / Spreadsheet Cleanup	137	136
ETL Scripting	141	139
OCR / Document Parsing	135	135
Table Extraction from PDFs	135	135
Long-Document Summarization	153	151
Short-Form Summarization	119	119
Blog Post Writing	133	131

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