Nemotron 3 Nano vs Swallow 30B
Nemotron 3 Nano (2025) and Swallow 30B (2025) are compact production models from NVIDIA AI and Tokyo Institute of Technology. Nemotron 3 Nano ships a 256k-token context window, while Swallow 30B ships a 16k-token context window. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads. It focuses on practical selection signals rather than broad model-family marketing.
Nemotron 3 Nano fits 16x more tokens; pick it for long-context work and Swallow 30B for tighter calls.
Decision scorecard
Local evidence first| Signal | Nemotron 3 Nano | Swallow 30B |
|---|---|---|
| Best for | tool-calling agents | general production evaluation |
| Decision fit | RAG, Agents, and Long context | General |
| Context window | 256k | 16k |
| Cheapest output | - | - |
| Provider routes | 1 tracked | 0 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Nemotron 3 Nano has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Nemotron 3 Nano has broader tracked provider coverage for fallback and procurement flexibility.
- Nemotron 3 Nano uniquely exposes Function calling and Tool use in local model data.
- Local decision data tags Nemotron 3 Nano for RAG, Agents, and Long context.
- Use Swallow 30B when your own prompt tests beat the comparison signals; the local data does not show a decisive standalone advantage yet.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Nemotron 3 Nano
Unavailable
No complete token price in local provider data
Swallow 30B
Unavailable
No complete token price in local provider data
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Nemotron 3 Nano and Swallow 30B; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Function calling and Tool use before moving production traffic.
- No overlapping tracked provider route is sourced for Swallow 30B and Nemotron 3 Nano; plan for SDK, billing, or endpoint changes.
- Nemotron 3 Nano adds Function calling and Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-12-15 | 2025-02-14 |
| Context window | 256k | 16k |
| Parameters | 3.97B | 30B |
| Architecture | mixture of experts | - |
| License | Apache 2.0 | Open Source |
| Knowledge cutoff | - | 2023 |
Pricing and availability
| Pricing attribute | Nemotron 3 Nano | Swallow 30B |
|---|---|---|
| Input price | - | - |
| Output price | - | - |
| Providers | - |
Pricing not yet sourced for either model.
Capabilities
| Capability | Nemotron 3 Nano | Swallow 30B |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | Yes | No |
| Tool use | Yes | No |
| Structured outputs | No | No |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on function calling: Nemotron 3 Nano and tool use: Nemotron 3 Nano. Both models share the core language-model surface, 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: Nemotron 3 Nano has no token price sourced yet and Swallow 30B has no token price sourced yet. Provider availability is 1 tracked routes versus 0. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Nemotron 3 Nano when long-context analysis, larger context windows, and broader provider choice are central to the workload. Choose Swallow 30B when provider fit are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency. For teams standardizing a stack, that distinction is often the difference between a benchmark win and a reliable deployment.
FAQ
Which has a larger context window, Nemotron 3 Nano or Swallow 30B?
Nemotron 3 Nano supports 256k tokens, while Swallow 30B supports 16k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Nemotron 3 Nano or Swallow 30B open source?
Nemotron 3 Nano is listed under Apache 2.0. Swallow 30B is listed under Open Source. 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 function calling, Nemotron 3 Nano or Swallow 30B?
Nemotron 3 Nano has the clearer documented function calling signal in this comparison. If function calling is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for tool use, Nemotron 3 Nano or Swallow 30B?
Nemotron 3 Nano has the clearer documented tool use signal in this comparison. If tool use is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Nemotron 3 Nano and Swallow 30B?
Nemotron 3 Nano is available on NVIDIA NIM. Swallow 30B is available on the tracked providers still being sourced. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
When should I pick Nemotron 3 Nano over Swallow 30B?
Nemotron 3 Nano fits 16x more tokens; pick it for long-context work and Swallow 30B for tighter calls. If your workload also depends on long-context analysis, start with Nemotron 3 Nano; if it depends on provider fit, run the same evaluation with Swallow 30B.
Continue comparing
Last reviewed: 2026-05-14. Data sourced from public model cards and provider documentation.