Muse Spark Open (Nebius) vs o4 Mini
Muse Spark Open (Nebius) is cheaper on output tokens, while Muse Spark Open (Nebius) offers a larger context window. Choose Muse Spark Open (Nebius) or o4 Mini based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Muse Spark Open (Nebius) | o4 Mini |
|---|---|---|
| Provider | Eden AI | OpenAI |
| Input / 1M tokens | $1.25 | $1.10 |
| Output / 1M tokens | $4.25 | $4.40 |
| Context window | 1M | 200K |
| Parameters | — | — |
| Open weights | Yes | No |
| Released | Oct 2026 | Apr 2025 |
| GPQA Diamond score | — | 79.6 |
| FrontierMath score | — | 24.8 |
| SWE-bench Verified score | — | 64.6 |
| SWE-bench Multimodal score | — | 33.9 |
| Epoch Capabilities Index score | — | 146 |
| LMArena (Chatbot Arena) Elo score | — | 1353 |
| LMArena Vision Elo score | — | 1194 |
FAQ
Is Muse Spark Open (Nebius) or o4 Mini cheaper?
Muse Spark Open (Nebius) is cheaper on output tokens ($4.25 vs $4.40 per 1M).
Which has the larger context window, Muse Spark Open (Nebius) or o4 Mini?
Muse Spark Open (Nebius) has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.