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Muse Spark Open (Nebius) vs Muse Spark 1.2

Both have similar output pricing. Choose Muse Spark Open (Nebius) or Muse Spark 1.2 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecMuse Spark Open (Nebius)Muse Spark 1.2
ProviderEden AIMeta
Input / 1M tokens$1.25$1.25
Output / 1M tokens$4.25$4.25
Context window1M1M
Parameters——
Open weightsYes—
ReleasedOct 2026—
Epoch Capabilities Index score—155
LMArena (Chatbot Arena) Elo score—1485
LMArena WebDev Elo score—1533
LMArena Vision Elo score—1305

FAQ

Is Muse Spark Open (Nebius) or Muse Spark 1.2 cheaper?

Muse Spark Open (Nebius) and Muse Spark 1.2 have comparable output pricing.

Which has the larger context window, Muse Spark Open (Nebius) or Muse Spark 1.2?

Both models offer a similar context window.

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.