Marin 8B Instruct vs Mistral Small 3
Marin 8B Instruct (2025) and Mistral Small 3 (2025) are compact production models from Marin and MistralAI. Marin 8B Instruct ships a 128k-token context window, while Mistral Small 3 ships a 33k-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.
Marin 8B Instruct is safer overall; choose Mistral Small 3 when provider fit matters.
Decision scorecard
Local evidence first| Signal | Marin 8B Instruct | Mistral Small 3 |
|---|---|---|
| Best for | general production evaluation | tool-calling agents and provider-routed production |
| Decision fit | Long context | Agents, Classification, and JSON / Tool use |
| Context window | 128k | 33k |
| Cheapest output | - | $0.30/1M tokens |
| Provider routes | 1 tracked | 2 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Marin 8B Instruct has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Local decision data tags Marin 8B Instruct for Long context.
- Mistral Small 3 has broader tracked provider coverage for fallback and route flexibility.
- Mistral Small 3 uniquely exposes JSON / Tool use and Structured outputs in local model data.
- Local decision data tags Mistral Small 3 for Agents, Classification, and JSON / Tool use.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Marin 8B Instruct
Unavailable
No complete token price in local provider data
Mistral Small 3
$155
Cheapest tracked route/tier: Together AI
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Marin 8B Instruct and Mistral Small 3; plan for SDK, billing, or endpoint changes.
- Mistral Small 3 adds JSON / Tool use and Structured outputs in local capability data.
- No overlapping tracked provider route is sourced for Mistral Small 3 and Marin 8B Instruct; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for JSON / Tool use and Structured outputs before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-09-01 | 2025-01-01 |
| Context window | 128k | 33k |
| Parameters | 8B | 24B |
| Architecture | Decoder Only | Decoder Only |
| License | Apache 2.0OSI-approved | Apache 2.0OSI-approved |
| Openness | Open source | Open source |
| Weights | Unknown | Unknown |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: permitted | Commercial use: permitted |
| Knowledge cutoff | 2024-07 | 2023-10 |
Pricing and availability
| Pricing attribute | Marin 8B Instruct | Mistral Small 3 |
|---|---|---|
| Input price | - | $0.10/1M tokens |
| Output price | - | $0.30/1M tokens |
| Providers |
Capabilities
| Capability | Marin 8B Instruct | Mistral Small 3 |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| JSON / Tool use | No | Yes |
| Structured outputs | No | Yes |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
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Last reviewed: 2026-09-08. Data sourced from public model cards and provider documentation.