head-to-head

PrismML: Ternary Bonsai 2 27B vs DeepSeek: DeepSeek V4.1 Flash

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-11-07.

PrismML: Ternary Bonsai 2 27B DeepSeek: DeepSeek V4.1 Flash
Vendorprism-mldeepseek
Quality Score100100
Input Price$0.07/M$0.05/M
Output Price$0.50/M$0.57/M
Context Window262,1441,048,576
Max Output32,768943,718
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--

The verdict

For a sample job of 1 million input tokens and 250,000 output tokens, DeepSeek V4.1 Flash costs $0.19 and Ternary Bonsai 2 27B costs $0.20, so DeepSeek V4.1 Flash is slightly cheaper for the same work.

DeepSeek V4.1 Flash 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 14 tasks where they differ, DeepSeek V4.1 Flash on 14 (SQL Generation, Code Review, Code Completion and others).

Pick DeepSeek V4.1 Flash if you need lower cost, 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?

TaskPrismML: Ternary Bonsai 2 27BDeepSeek: DeepSeek V4.1 Flash
SQL Generation 131 133
Code Review 126 132
Code Completion 129 131
Code Refactoring 127 136
Bug Fixing 130 136
Unit Test Generation 121 124
Code Documentation 126 131
CI/CD Pipelines 117 120
CSV / Spreadsheet Cleanup 128 133
ETL Scripting 122 128
OCR / Document Parsing 128 131
Table Extraction from PDFs 128 131
Long-Document Summarization 129 137
Blog Post Writing 119 121

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

Related comparisons

Anthropic: Claude Haiku 5.5 (batch) vs DeepSeek: DeepSeek V4.1 Flash Anthropic: Claude Haiku 5.5 (batch) vs PrismML: Ternary Bonsai 2 27B Anthropic: Claude Haiku 5.5 vs DeepSeek: DeepSeek V4.1 Flash Anthropic: Claude Haiku 5.5 vs PrismML: Ternary Bonsai 2 27B Anthropic: Claude Opus 5.5 (batch) vs DeepSeek: DeepSeek V4.1 Flash Anthropic: Claude Opus 5.5 (batch) vs PrismML: Ternary Bonsai 2 27B Anthropic: Claude Sonnet 5.5 (batch) vs DeepSeek: DeepSeek V4.1 Flash Anthropic: Claude Sonnet 5.5 (batch) vs PrismML: Ternary Bonsai 2 27B

The Model Movers Report

One email every Friday, built from this site's own rankings: the current top five by benchmark score, every model released in the last seven days, and one note worked out from that week's numbers. You can unsubscribe from any issue with one click.