head-to-head

OpenAI: GPT-6 Sol vs Anthropic: Claude Opus 5.5 (batch)

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-13.

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: 1,050,000 and 1,000,000 tokens, about 1,575 and 1,500 pages.

On our blended benchmark score Claude Opus 5.5 (batch) leads 100.0 to 81.4.

Across the 18 tasks where they differ, Claude Opus 5.5 (batch) on 18 (SQL Generation, Code Review, Code Completion and others).

Pick Claude Opus 5.5 (batch) if you need 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	OpenAI: GPT-6 Sol	Anthropic: Claude Opus 5.5 (batch)
SQL Generation	142	144
Code Review	146	150
Code Completion	119	119
Code Refactoring	148	151
Bug Fixing	150	154
Unit Test Generation	133	135
Code Documentation	136	138
Regex Writing	125	127
CI/CD Pipelines	129	131
Frontend Component Design	131	133
Data Analysis	135	138
CSV / Spreadsheet Cleanup	135	136
ETL Scripting	139	141
OCR / Document Parsing	134	135
Table Extraction from PDFs	134	135
Long-Document Summarization	149	152
Short-Form Summarization	117	118
Blog Post Writing	130	132

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