DeepSeek: DeepSeek V4.1 Flash 1017 vs PrismML: Ternary Bonsai 2 27B
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-19.
| DeepSeek: DeepSeek V4.1 Flash 1017 | PrismML: Ternary Bonsai 2 27B | |
|---|---|---|
| Vendor | deepseek | prism-ml |
| Quality Score | 100 | 100 |
| Input Price | $0.15/M | $0.07/M |
| Output Price | $0.60/M | $0.50/M |
| Context Window | 1,048,576 | 262,144 |
| Max Output | 393,216 | 32,768 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, Ternary Bonsai 2 27B costs $0.20 and DeepSeek V4.1 Flash 1017 costs $0.30, so Ternary Bonsai 2 27B is about 1.5 times cheaper for the same work.
DeepSeek V4.1 Flash 1017 reads up to 1,048,576 tokens at once, roughly 1,573 pages of text, against about 393 pages for Ternary Bonsai 2 27B.
Across the 17 tasks where they differ, DeepSeek V4.1 Flash 1017 scores higher on 14 (SQL Generation, Code Review, Code Completion and others), Ternary Bonsai 2 27B on 3 (Regex Writing, JSON Extraction, Short-Form Summarization).
DeepSeek V4.1 Flash 1017 was released in October 2026 and Ternary Bonsai 2 27B in September 2026.
Pick DeepSeek V4.1 Flash 1017 if you need long documents or the stronger all-round task scores; pick Ternary Bonsai 2 27B if you need lower cost.
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 | DeepSeek: DeepSeek V4.1 Flash 1017 | PrismML: Ternary Bonsai 2 27B |
|---|---|---|
| SQL Generation | 133 | 131 |
| Code Review | 132 | 126 |
| Code Completion | 131 | 129 |
| Code Refactoring | 136 | 127 |
| Bug Fixing | 136 | 130 |
| Unit Test Generation | 124 | 121 |
| Code Documentation | 131 | 126 |
| Regex Writing | 119 | 119 |
| CI/CD Pipelines | 120 | 117 |
| CSV / Spreadsheet Cleanup | 133 | 128 |
| ETL Scripting | 128 | 122 |
| JSON Extraction | 131 | 131 |
| OCR / Document Parsing | 131 | 128 |
| Table Extraction from PDFs | 131 | 128 |
| Long-Document Summarization | 137 | 129 |
| Short-Form Summarization | 123 | 123 |
| Blog Post Writing | 121 | 119 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →