Mistral Small 4 vs Swallow 13B Instruct
Mistral Small 4 (2026) and Swallow 13B Instruct (2024) are compact production models from MistralAI and Tokyo Institute of Technology. Mistral Small 4 ships a 256K-token context window, while Swallow 13B Instruct ships a 8K-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.
Mistral Small 4 fits 31x more tokens; pick it for long-context work and Swallow 13B Instruct for tighter calls.
Decision scorecard
Local evidence first| Signal | Mistral Small 4 | Swallow 13B Instruct |
|---|---|---|
| Decision fit | RAG, Agents, and Long context | General |
| Context window | 256K | 8K |
| Cheapest output | $0.6/1M tokens | - |
| Provider routes | 3 tracked | 0 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Mistral Small 4 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Mistral Small 4 has broader tracked provider coverage for fallback and procurement flexibility.
- Mistral Small 4 uniquely exposes Vision, Multimodal, and Function calling in local model data.
- Local decision data tags Mistral Small 4 for RAG, Agents, and Long context.
- Use Swallow 13B Instruct 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 prices on this page.
Mistral Small 4
$270
Cheapest tracked route: OpenRouter
Swallow 13B Instruct
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 Mistral Small 4 and Swallow 13B Instruct; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Vision, Multimodal, and Function calling before moving production traffic.
- No overlapping tracked provider route is sourced for Swallow 13B Instruct and Mistral Small 4; plan for SDK, billing, or endpoint changes.
- Mistral Small 4 adds Vision, Multimodal, and Function calling in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-03-16 | 2024-12-10 |
| Context window | 256K | 8K |
| Parameters | 119B (6.5B active) | 13B |
| Architecture | moe | - |
| License | Apache 2.0 | Open Source |
| Knowledge cutoff | 2025-06 | 2023 |
Pricing and availability
| Pricing attribute | Mistral Small 4 | Swallow 13B Instruct |
|---|---|---|
| Input price | $0.15/1M tokens | - |
| Output price | $0.6/1M tokens | - |
| Providers | - |
Capabilities
| Capability | Mistral Small 4 | Swallow 13B Instruct |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | No | No |
| Function calling | Yes | No |
| Tool use | Yes | No |
| Structured outputs | No | No |
| Code execution | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: Mistral Small 4, multimodal input: Mistral Small 4, function calling: Mistral Small 4, and tool use: Mistral Small 4. 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: Mistral Small 4 has $0.15/1M input tokens and Swallow 13B Instruct has no token price sourced yet. Provider availability is 3 tracked routes versus 0. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Mistral Small 4 when long-context analysis, larger context windows, and broader provider choice are central to the workload. Choose Swallow 13B Instruct 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.
FAQ
Which has a larger context window, Mistral Small 4 or Swallow 13B Instruct?
Mistral Small 4 supports 256K tokens, while Swallow 13B Instruct supports 8K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Mistral Small 4 or Swallow 13B Instruct open source?
Mistral Small 4 is listed under Apache 2.0. Swallow 13B Instruct 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 vision, Mistral Small 4 or Swallow 13B Instruct?
Mistral Small 4 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.
Which is better for multimodal input, Mistral Small 4 or Swallow 13B Instruct?
Mistral Small 4 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.
Which is better for function calling, Mistral Small 4 or Swallow 13B Instruct?
Mistral Small 4 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.
Where can I run Mistral Small 4 and Swallow 13B Instruct?
Mistral Small 4 is available on OpenRouter, NVIDIA NIM, and Mistral AI Studio. Swallow 13B Instruct is available on the tracked providers still being sourced. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-14. Data sourced from public model cards and provider documentation.