OpenAI: GPT-6.1 Sol Pro vs Xiaomi: MiMo-V2.6-Pro-UltraSpeed
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-30.
| OpenAI: GPT-6.1 Sol Pro | Xiaomi: MiMo-V2.6-Pro-UltraSpeed | |
|---|---|---|
| Vendor | openai | xiaomi |
| Quality Score | 100 | 100 |
| Input Price | $2.00/M | $4.35/M |
| Output Price | $10.00/M | $8.70/M |
| Context Window | 1,050,000 | 1,048,576 |
| Max Output | 128,000 | 131,072 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | ✓ |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, GPT-6.1 Sol Pro costs $4.50 and MiMo-V2.6-Pro-UltraSpeed costs $6.52, so GPT-6.1 Sol Pro is about 1.4 times cheaper for the same work.
Both take in a similar amount of text: 1,050,000 and 1,048,576 tokens, about 1,575 and 1,573 pages.
Only MiMo-V2.6-Pro-UltraSpeed offers audio input and video input.
Across the 10 tasks where they differ, GPT-6.1 Sol Pro scores higher on 10 (SQL Generation, Code Completion, Code Documentation and others).
Pick GPT-6.1 Sol Pro if you need lower cost or the stronger all-round task scores; pick MiMo-V2.6-Pro-UltraSpeed if you need audio input or video input.
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 | OpenAI: GPT-6.1 Sol Pro | Xiaomi: MiMo-V2.6-Pro-UltraSpeed |
|---|---|---|
| SQL Generation | 132 | 132 |
| Code Completion | 117 | 117 |
| Code Documentation | 129 | 129 |
| Regex Writing | 117 | 117 |
| CSV / Spreadsheet Cleanup | 132 | 132 |
| JSON Extraction | 121 | 121 |
| Bulk Data Labeling | 118 | 118 |
| Long-Document Summarization | 136 | 136 |
| Short-Form Summarization | 113 | 113 |
| Blog Post Writing | 120 | 120 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →