Fugu Ultra vs Nemotron 3 Super-120B-A12B
Fugu Ultra (2026) and Nemotron 3 Super-120B-A12B (2026) are frontier reasoning models from Sakana AI and NVIDIA AI. Fugu Ultra ships a 1m-token context window, while Nemotron 3 Super-120B-A12B ships a 1.05m-token context window. On Google-Proof Q&A, Fugu Ultra leads by 15.5 pts. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Fugu Ultra is safer overall; choose Nemotron 3 Super-120B-A12B when long-context analysis matters.
Decision scorecard
Local evidence first| Signal | Fugu Ultra | Nemotron 3 Super-120B-A12B |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | long-context analysis and provider-routed production |
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 1m | 1.05m |
| Cheapest output | $30/1M tokens | $0.45/1M tokens |
| Provider routes | 2 tracked | 6 tracked |
| Shared benchmarks | Google-Proof Q&A leader | 2 shared |
Decision tradeoffs
- Fugu Ultra holds a shared-benchmark lead on Google-Proof Q&A, ahead by 15.5 points.
- Fugu Ultra uniquely exposes Vision, Multimodal, and Reasoning in local model data.
- Local decision data tags Fugu Ultra for Coding, RAG, and Agents.
- Nemotron 3 Super-120B-A12B has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Nemotron 3 Super-120B-A12B has the lower cheapest tracked output price at $0.45/1M tokens.
- Nemotron 3 Super-120B-A12B has broader tracked provider coverage for fallback and procurement flexibility.
- Local decision data tags Nemotron 3 Super-120B-A12B 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.
Fugu Ultra
$11,500
Cheapest tracked route/tier: Sakana AI <=272K tokens
Nemotron 3 Super-120B-A12B
$185
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $11,316. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on Vercel AI Gateway; start route-level A/B tests there.
- Nemotron 3 Super-120B-A12B is $29.55/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision, Multimodal, and Reasoning before moving production traffic.
- Provider overlap exists on Vercel AI Gateway; start route-level A/B tests there.
- Fugu Ultra is $29.55/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Fugu Ultra adds Vision, Multimodal, and Reasoning in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-06-22 | 2026-03-11 |
| Context window | 1m | 1.05m |
| Parameters | — | 120B |
| Architecture | Composition of Experts | Decoder Only |
| License | Proprietary | NVIDIA Open Model |
| Openness | Proprietary | Open weights |
| Commercial use | Commercial use: conditional | Commercial use: permitted |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Fugu Ultra | Nemotron 3 Super-120B-A12B |
|---|---|---|
| Input price |
| $0.09/1M tokens |
| Output price |
| $0.45/1M tokens |
| Providers |
Capabilities
| Capability | Fugu Ultra | Nemotron 3 Super-120B-A12B |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | Yes | No |
| Function calling | Yes | No |
| Tool use | Yes | No |
| Structured outputs | Yes | Yes |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | Fugu Ultra | Nemotron 3 Super-120B-A12B |
|---|---|---|
| Google-Proof Q&A | 95.5 | 80.0 |
| LiveCodeBench | 93.2 | 78.4 |
Deep dive
On shared benchmark coverage, Google-Proof Q&A has Fugu Ultra at 95.5 and Nemotron 3 Super-120B-A12B at 80, with Fugu Ultra ahead by 15.5 points; LiveCodeBench has Fugu Ultra at 93.2 and Nemotron 3 Super-120B-A12B at 78.4, with Fugu Ultra ahead by 14.8 points. The largest visible gap is 15.5 points on Google-Proof Q&A, 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 vision: Fugu Ultra, multimodal input: Fugu Ultra, reasoning mode: Fugu Ultra, function calling: Fugu Ultra, and tool use: Fugu Ultra. Both models share structured outputs, 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.
For cost, Fugu Ultra lists tiered pricing: <=272K tokens is $5/1M input and $30/1M output; >272K tokens is $10/1M input and $45/1M output, while Nemotron 3 Super-120B-A12B lists $0.09/1M input and $0.45/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Nemotron 3 Super-120B-A12B lower by about $12.30 per million blended tokens. For tiered rows, this cheapest-track view can understate interactive or fast-lane spend, so compare the tier you will actually use. Availability is 2 providers versus 6, so concentration risk also matters.
Choose Fugu Ultra when reasoning depth are central to the workload. Choose Nemotron 3 Super-120B-A12B when long-context analysis, larger context windows, and lower input-token cost 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, Fugu Ultra or Nemotron 3 Super-120B-A12B?
Nemotron 3 Super-120B-A12B supports 1.05m tokens, while Fugu Ultra supports 1m tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Fugu Ultra or Nemotron 3 Super-120B-A12B?
Fugu Ultra lists tiered pricing: <=272K tokens is $5/1M input and $30/1M output; >272K tokens is $10/1M input and $45/1M output. Nemotron 3 Super-120B-A12B lists $0.09/1M input and $0.45/1M output tokens on the cheapest tracked provider. Compare the tier you will actually use; cheap async pricing can overstate savings for interactive workflows. Provider discounts or batch pricing can still change the final bill.
Is Fugu Ultra or Nemotron 3 Super-120B-A12B open source?
Fugu Ultra is listed under Proprietary. Nemotron 3 Super-120B-A12B is listed under NVIDIA Open Model. 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, Fugu Ultra or Nemotron 3 Super-120B-A12B?
Fugu Ultra has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for multimodal input, Fugu Ultra or Nemotron 3 Super-120B-A12B?
Fugu Ultra has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Fugu Ultra and Nemotron 3 Super-120B-A12B?
Fugu Ultra is available on Sakana AI and Vercel AI Gateway. Nemotron 3 Super-120B-A12B is available on Cloudflare Workers AI, DeepInfra, NVIDIA NIM, OpenRouter, and Fireworks AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-06-22. Data sourced from public model cards and provider documentation.