MiniMax: MiniMax M3.1 Flash (free) vs OpenAI: GPT-6.1 Sol (batch)
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-20.
| MiniMax: MiniMax M3.1 Flash (free) | OpenAI: GPT-6.1 Sol (batch) | |
|---|---|---|
| Vendor | minimax | openai |
| Quality Score | 100 | 100 |
| Benchmark Score | - | 88.8 |
| Input Price | Free | $1.00/M |
| Output Price | Free | $5.00/M |
| Context Window | 1,000,000 | 1,050,000 |
| Max Output | 524,288 | 128,000 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
| Benchmark Scores | ||
| ai_index | - | 85.5 |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, MiniMax M3.1 Flash (free) costs $0 and GPT-6.1 Sol (batch) costs $2.25, so MiniMax M3.1 Flash (free) is free for the same work.
Both take in a similar amount of text: 1,000,000 and 1,050,000 tokens, about 1,500 and 1,575 pages.
Only MiniMax M3.1 Flash (free) offers video input.
Across the 20 tasks where they differ, MiniMax M3.1 Flash (free) scores higher on 4 (Code Completion, JSON Extraction, Bulk Data Labeling and others), GPT-6.1 Sol (batch) on 16 (SQL Generation, Code Review, Code Refactoring and others).
MiniMax M3.1 Flash (free) was released in October 2026 and GPT-6.1 Sol (batch) in September 2026.
Pick MiniMax M3.1 Flash (free) if you need lower cost or video input; pick GPT-6.1 Sol (batch) if you need 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.
Who wins by task?
| Task | MiniMax: MiniMax M3.1 Flash (free) | OpenAI: GPT-6.1 Sol (batch) |
|---|---|---|
| SQL Generation | 134 | 143 |
| Code Review | 132 | 148 |
| Code Completion | 132 | 120 |
| Code Refactoring | 136 | 149 |
| Bug Fixing | 136 | 152 |
| Unit Test Generation | 124 | 134 |
| Code Documentation | 132 | 138 |
| Regex Writing | 120 | 127 |
| CI/CD Pipelines | 120 | 130 |
| Frontend Component Design | 122 | 132 |
| Data Analysis | 124 | 136 |
| CSV / Spreadsheet Cleanup | 134 | 136 |
| ETL Scripting | 128 | 140 |
| JSON Extraction | 132 | 122 |
| Bulk Data Labeling | 130 | 120 |
| OCR / Document Parsing | 131 | 135 |
| Table Extraction from PDFs | 131 | 135 |
| Long-Document Summarization | 138 | 151 |
| Short-Form Summarization | 124 | 119 |
| Blog Post Writing | 122 | 131 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →