PrismML: Ternary Bonsai 2 27B vs OpenAI: GPT Terra Latest
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-13.
| PrismML: Ternary Bonsai 2 27B | OpenAI: GPT Terra Latest | |
|---|---|---|
| Vendor | prism-ml | ~openai |
| Quality Score | 100 | 100 |
| Input Price | $0.07/M | $2.00/M |
| Output Price | $0.50/M | $12.00/M |
| Context Window | 262,144 | 1,050,000 |
| Max Output | 32,768 | 128,000 |
| 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 GPT Terra Latest costs $5.00, so Ternary Bonsai 2 27B is about 25.0 times cheaper for the same work.
GPT Terra Latest reads up to 1,050,000 tokens at once, roughly 1,575 pages of text, against about 393 pages for Ternary Bonsai 2 27B.
Across the 18 tasks where they differ, Ternary Bonsai 2 27B scores higher on 5 (Code Completion, Regex Writing, JSON Extraction and others), GPT Terra Latest on 13 (SQL Generation, Code Review, Code Refactoring and others).
Pick Ternary Bonsai 2 27B if you need lower cost; pick GPT Terra Latest if you need long documents 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.
Who wins by task?
| Task | PrismML: Ternary Bonsai 2 27B | OpenAI: GPT Terra Latest |
|---|---|---|
| SQL Generation | 131 | 132 |
| Code Review | 126 | 132 |
| Code Completion | 129 | 117 |
| Code Refactoring | 127 | 136 |
| Bug Fixing | 130 | 136 |
| Unit Test Generation | 121 | 124 |
| Code Documentation | 126 | 129 |
| Regex Writing | 119 | 117 |
| CI/CD Pipelines | 117 | 120 |
| CSV / Spreadsheet Cleanup | 128 | 132 |
| ETL Scripting | 122 | 128 |
| JSON Extraction | 131 | 121 |
| Bulk Data Labeling | 129 | 117 |
| OCR / Document Parsing | 128 | 131 |
| Table Extraction from PDFs | 128 | 131 |
| Long-Document Summarization | 129 | 136 |
| Short-Form Summarization | 123 | 113 |
| Blog Post Writing | 119 | 120 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →