Meta: Muse Spark 1.2 vs SpaceXAI: Grok Build 0.1

For a sample job of 1 million input tokens and 250,000 output tokens, Grok Build 0.1 costs $1.50 and Muse Spark 1.2 costs $2.31, so Grok Build 0.1 is about 1.5 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 384 pages for Grok Build 0.1.

Only Muse Spark 1.2 offers video input.

Across the 18 tasks where they differ, Muse Spark 1.2 scores higher on 14 (SQL Generation, Code Review, Code Completion and others), Grok Build 0.1 on 4 (Regex Writing, JSON Extraction, Bulk Data Labeling and others).

Muse Spark 1.2 was released in August 2026 and Grok Build 0.1 in May 2026.

Pick Muse Spark 1.2 if you need long documents, video input or the stronger all-round task scores; pick Grok Build 0.1 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.