PrismML: Ternary Bonsai 2 27B vs Meta: Muse Spark 1.2

For a sample job of 1 million input tokens and 250,000 output tokens, Ternary Bonsai 2 27B costs $0.20 and Muse Spark 1.2 costs $2.31, so Ternary Bonsai 2 27B is about 11.6 times cheaper for the same work.

Muse Spark 1.2 reads up to 1,048,576 tokens at once, roughly 1,573 pages of text, against about 393 pages for Ternary Bonsai 2 27B.

Only Muse Spark 1.2 offers video input.

Across the 18 tasks where they differ, Ternary Bonsai 2 27B scores higher on 5 (Code Completion, Regex Writing, JSON Extraction and others), Muse Spark 1.2 on 13 (SQL Generation, Code Review, Code Refactoring and others).

Ternary Bonsai 2 27B was released in September 2026 and Muse Spark 1.2 in August 2026.

Pick Ternary Bonsai 2 27B if you need lower cost; pick Muse Spark 1.2 if you need long documents, video input 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.