Nemotron 4 340B vs Swallow 30B
Nemotron 4 340B (2025) and Swallow 30B (2025) are compact production models from NVIDIA AI and Tokyo Institute of Technology. Nemotron 4 340B ships a 4K-token context window, while Swallow 30B ships a 16K-token context window. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing. The goal is to make the tradeoff clear before deeper testing.
Swallow 30B fits 4x more tokens; pick it for long-context work and Nemotron 4 340B for tighter calls.
Decision scorecard
Local evidence first| Signal | Nemotron 4 340B | Swallow 30B |
|---|---|---|
| Decision fit | Classification and JSON / Tool use | General |
| Context window | 4K | 16K |
| Cheapest output | $4.2/1M tokens | - |
| Provider routes | 2 tracked | 0 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Nemotron 4 340B has broader tracked provider coverage for fallback and procurement flexibility.
- Nemotron 4 340B uniquely exposes Structured outputs in local model data.
- Local decision data tags Nemotron 4 340B for Classification and JSON / Tool use.
- Swallow 30B has the larger context window for long prompts, retrieval packs, or transcript analysis.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
Nemotron 4 340B
$4,410
Cheapest tracked route: DeepInfra
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 4 340B and Swallow 30B; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Structured outputs before moving production traffic.
- No overlapping tracked provider route is sourced for Swallow 30B and Nemotron 4 340B; plan for SDK, billing, or endpoint changes.
- Nemotron 4 340B adds Structured outputs in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-02-27 | 2025-02-14 |
| Context window | 4K | 16K |
| Parameters | 340B | 30B |
| Architecture | decoder only | - |
| License | Unknown | Open Source |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Nemotron 4 340B | Swallow 30B |
|---|---|---|
| Input price | $4.2/1M tokens | - |
| Output price | $4.2/1M tokens | - |
| Providers | - |
Capabilities
| Capability | Nemotron 4 340B | Swallow 30B |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | No | No |
| Tool use | No | No |
| Structured outputs | Yes | No |
| Code execution | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on structured outputs: Nemotron 4 340B. 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 4 340B has $4.2/1M input tokens and Swallow 30B has no token price sourced yet. Provider availability is 2 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 4 340B when provider fit and broader provider choice are central to the workload. Choose Swallow 30B when long-context analysis and larger context windows 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 4 340B or Swallow 30B?
Swallow 30B supports 16K tokens, while Nemotron 4 340B supports 4K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Nemotron 4 340B or Swallow 30B open source?
Nemotron 4 340B is listed under Unknown. 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 structured outputs, Nemotron 4 340B or Swallow 30B?
Nemotron 4 340B has the clearer documented structured outputs signal in this comparison. If structured outputs is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Nemotron 4 340B and Swallow 30B?
Nemotron 4 340B is available on NVIDIA NIM and DeepInfra. 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 4 340B over Swallow 30B?
Swallow 30B fits 4x more tokens; pick it for long-context work and Nemotron 4 340B for tighter calls. If your workload also depends on provider fit, start with Nemotron 4 340B; if it depends on long-context analysis, run the same evaluation with Swallow 30B.
Continue comparing
Last reviewed: 2026-05-01. Data sourced from public model cards and provider documentation.