Kimi K2 Turbo Preview vs Magistral Small 2506
Kimi K2 Turbo Preview (2025) and Magistral Small 2506 (2025) are frontier reasoning models from Moonshot AI and MistralAI. Kimi K2 Turbo Preview ships a 262k-token context window, while Magistral Small 2506 ships a 128k-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.
Kimi K2 Turbo Preview is safer overall; choose Magistral Small 2506 when reasoning depth matters.
Decision scorecard
Local evidence first| Signal | Kimi K2 Turbo Preview | Magistral Small 2506 |
|---|---|---|
| Best for | tool-calling agents | reasoning-heavy apps |
| Decision fit | RAG, Agents, and Long context | Long context |
| Context window | 262k | 128k |
| Cheapest output | - | - |
| Provider routes | 0 tracked | 1 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Kimi K2 Turbo Preview has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Kimi K2 Turbo Preview uniquely exposes JSON / Tool use in local model data.
- Local decision data tags Kimi K2 Turbo Preview for RAG, Agents, and Long context.
- Magistral Small 2506 has broader tracked provider coverage for fallback and route flexibility.
- Magistral Small 2506 uniquely exposes Reasoning in local model data.
- Local decision data tags Magistral Small 2506 for Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Kimi K2 Turbo Preview
Unavailable
No complete token price in local provider data
Magistral Small 2506
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 Kimi K2 Turbo Preview and Magistral Small 2506; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for JSON / Tool use before moving production traffic.
- Magistral Small 2506 adds Reasoning in local capability data.
- No overlapping tracked provider route is sourced for Magistral Small 2506 and Kimi K2 Turbo Preview; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Reasoning before moving production traffic.
- Kimi K2 Turbo Preview adds JSON / Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-08-01 | 2025-06-10 |
| Context window | 262k | 128k |
| Parameters | 1K | 24B |
| Architecture | - | Decoder Only |
| License | MITOSI-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 | - | 2025-06 |
Pricing and availability
| Pricing attribute | Kimi K2 Turbo Preview | Magistral Small 2506 |
|---|---|---|
| Input price | - | - |
| Output price | - | - |
| Providers | - |
Pricing not yet sourced for either model.
Capabilities
| Capability | Kimi K2 Turbo Preview | Magistral Small 2506 |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | Yes |
| JSON / 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 scores are currently available for this pair.
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Last reviewed: 2026-06-04. Data sourced from public model cards and provider documentation.