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Muse Spark 1.2 alternatives

Match · Updated August 2026

The closest alternative to Muse Spark 1.2 is Grok 4.5 — comparable intelligence (53.8 vs 54.1); for a cheaper option, GPT-5.6 Terra runs $1.00/M vs $1.25/M; for more speed, Gemini 3.1 Pro Preview hits 195 t/s; and the best open-weight substitute is Kimi K3.

Frequently asked

What is the best alternative to Muse Spark 1.2?

Grok 4.5 is the closest alternative to Muse Spark 1.2, with an Intelligence Index of 53.8 (Muse Spark 1.2 scores 54.1) at $2.00 per million input tokens.

Is there a cheaper alternative to Muse Spark 1.2?

Yes — GPT-5.6 Terra costs $1.00 per million input tokens versus $1.25 for Muse Spark 1.2, while staying within ~8 points of its Intelligence Index.

Is there an open-source alternative to Muse Spark 1.2?

Kimi K3 is the strongest open-weight alternative to Muse Spark 1.2 — downloadable from Hugging Face and self-hostable, scoring 57.1 on intelligence.