Muse Spark Open vs Nemotron 3.5 Super VL
Muse Spark Open (2026) and Nemotron 3.5 Super VL (2026) are frontier-tier reasoning models from AI at Meta and NVIDIA AI. Both ship a 1M-token context window. On Google-Proof Q&A, Nemotron 3.5 Super VL leads by 0.5 pts. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Muse Spark Open is safer overall; choose Nemotron 3.5 Super VL when vision-heavy evaluation matters.
Decision scorecard
Local evidence first| Signal | Muse Spark Open | Nemotron 3.5 Super VL |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 1M | 1M |
| Cheapest output | $4.25/1M tokens | - |
| Provider routes | 4 tracked | 1 tracked |
| Shared benchmarks | 2 shared | Google-Proof Q&A leader |
Decision tradeoffs
- Muse Spark Open holds a shared-benchmark lead on Terminal-Bench 2.1, ahead by 9.7 points.
- Muse Spark Open has broader tracked provider coverage for fallback and route flexibility.
- Local decision data tags Muse Spark Open for Coding, RAG, and Agents.
- Nemotron 3.5 Super VL holds a shared-benchmark lead on Google-Proof Q&A, ahead by 0.5 points.
- Nemotron 3.5 Super VL uniquely exposes Structured outputs in local model data.
- Local decision data tags Nemotron 3.5 Super VL for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Muse Spark Open
$2,063
Cheapest tracked route/tier: Together AI
Nemotron 3.5 Super VL
Unavailable
No complete token price in local provider data
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Nemotron 3.5 Super VL adds Structured outputs in local capability data.
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Check replacement coverage for Structured outputs before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-10-15 | 2026-10-15 |
| Context window | 1M | 1M |
| Parameters | 816B (42B activated) | 120B (12B activated) |
| Architecture | Mixture of Experts | MoE + SSM Hybrid |
| License | Muse Model License | OpenMDW 1.1 |
| Openness | Open weights | Open weights |
| Weights | Available | Available |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: permitted |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Muse Spark Open | Nemotron 3.5 Super VL |
|---|---|---|
| Input price | $1.25/1M tokens | - |
| Output price | $4.25/1M tokens | - |
| Providers |
Capabilities
| Capability | Muse Spark Open | Nemotron 3.5 Super VL |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | Yes |
| JSON / Tool use | Yes | Yes |
| Structured outputs | No | Yes |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | Muse Spark Open | Nemotron 3.5 Super VL |
|---|---|---|
| Google-Proof Q&A | 89.0 | 89.5 |
| Terminal-Bench 2.1 | 76.4 | 66.7 |
Deep dive
On shared benchmark coverage, Google-Proof Q&A has Muse Spark Open at 89 and Nemotron 3.5 Super VL at 89.5, with Nemotron 3.5 Super VL ahead by 0.5 points; Terminal-Bench 2.1 has Muse Spark Open at 76.4 and Nemotron 3.5 Super VL at 66.7, with Muse Spark Open ahead by 9.7 points. The largest visible gap is 9.7 points on Terminal-Bench 2.1, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint differs most on structured outputs: Nemotron 3.5 Super VL. Both models share vision, multimodal input, reasoning mode, and JSON / Tool use, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
Pricing coverage is uneven: Muse Spark Open has $1.25/1M input tokens and Nemotron 3.5 Super VL has no token price sourced yet. Provider availability is 4 tracked routes versus 1. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Muse Spark Open when vision-heavy evaluation and broader provider choice are central to the workload. Choose Nemotron 3.5 Super VL when vision-heavy evaluation are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which has a larger context window, Muse Spark Open or Nemotron 3.5 Super VL?
Muse Spark Open supports 1M tokens, while Nemotron 3.5 Super VL supports 1M tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Muse Spark Open or Nemotron 3.5 Super VL open source?
Muse Spark Open is listed under Muse Model License. Nemotron 3.5 Super VL is listed under OpenMDW 1.1. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, Muse Spark Open or Nemotron 3.5 Super VL?
Both Muse Spark Open and Nemotron 3.5 Super VL expose vision. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for multimodal input, Muse Spark Open or Nemotron 3.5 Super VL?
Both Muse Spark Open and Nemotron 3.5 Super VL expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for reasoning mode, Muse Spark Open or Nemotron 3.5 Super VL?
Both Muse Spark Open and Nemotron 3.5 Super VL expose reasoning mode. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run Muse Spark Open and Nemotron 3.5 Super VL?
Muse Spark Open is available on Together AI, Fireworks AI, GroqCloud, and OpenRouter. Nemotron 3.5 Super VL is available on OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-10-15. Data sourced from public model cards and provider documentation.