Muse Spark 1.2 vs Grok 4.5

This comparison does not currently contain a protocol-matched coding benchmark for both Muse Spark 1.2 and Grok 4.5, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.

Only Grok 4.5 has a directly sourced input price: $2.00 per million tokens. Only Grok 4.5 has a directly sourced output price: $6.00 per million tokens.

Neither model has a larger sourced context window in this comparison. Muse Spark 1.2 is — and Grok 4.5 is 500K.

Muse Spark 1.2 leads the current overall benchmark count. The result uses 4 protocol-matched benchmarks from 2 publishers; it is not a universal quality score.

Both models have the same recorded self-hosting status: unsupported. Muse Spark 1.2 is not marked open weight; Grok 4.5 is not marked open weight.

Muse Spark 1.2 is documented with image input; Grok 4.5 is documented with image input. This reflects supported input modalities, not vision quality.

Neither has a larger sourced maximum output. Muse Spark 1.2 is — and Grok 4.5 is —.

Muse Spark 1.2: reasoning, tool calling, and image input. Grok 4.5: reasoning, tool calling, and image input. Feature support does not establish relative quality.

Muse Spark 1.2 has 0 sourced provider routes; Grok 4.5 has 1, so Grok 4.5 has broader tracked availability.

There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.