LLM Reference

DeepSeek V3.2 vs Phi-4 Mini Flash Reasoning

DeepSeek V3.2 (2025) and Phi-4 Mini Flash Reasoning (2025) are frontier reasoning models from DeepSeek and Microsoft Research. DeepSeek V3.2 ships a 160k-token context window, while Phi-4 Mini Flash Reasoning 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.

DeepSeek V3.2 is safer overall; choose Phi-4 Mini Flash Reasoning when reasoning depth matters.

Decision scorecard

Local evidence first
SignalDeepSeek V3.2Phi-4 Mini Flash Reasoning
Best forprovider-routed productionreasoning-heavy apps
Decision fitCoding, RAG, and AgentsLong context
Context window160k128k
Cheapest output$0.38/1M tokens-
Provider routes7 tracked1 tracked
Shared benchmarks0 shared0 shared

Decision tradeoffs

Choose DeepSeek V3.2 when...
  • DeepSeek V3.2 has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • DeepSeek V3.2 has broader tracked provider coverage for fallback and route flexibility.
  • DeepSeek V3.2 uniquely exposes Structured outputs and Code execution in local model data.
  • Local decision data tags DeepSeek V3.2 for Coding, RAG, and Agents.
Choose Phi-4 Mini Flash Reasoning when...
  • Phi-4 Mini Flash Reasoning uniquely exposes Reasoning in local model data.
  • Local decision data tags Phi-4 Mini Flash Reasoning for Long context.

Monthly cost at traffic

Estimate token spend from the cheapest tracked input and output route or tier on this page.

DeepSeek V3.2

$296

Cheapest tracked route/tier: OpenRouter

Phi-4 Mini Flash Reasoning

Unavailable

No complete token price in local provider data

Cost delta unavailable until both models have sourced input and output token prices.

Switch friction

DeepSeek V3.2 -> Phi-4 Mini Flash Reasoning
  • Provider overlap exists on NVIDIA NIM; start route-level A/B tests there.
  • Check replacement coverage for Structured outputs and Code execution before moving production traffic.
  • Phi-4 Mini Flash Reasoning adds Reasoning in local capability data.
Phi-4 Mini Flash Reasoning -> DeepSeek V3.2
  • Provider overlap exists on NVIDIA NIM; start route-level A/B tests there.
  • Check replacement coverage for Reasoning before moving production traffic.
  • DeepSeek V3.2 adds Structured outputs and Code execution in local capability data.

Specs

Specification
Released2025-12-012025-12-01
Context window160k128k
Parameters671B3.8B
ArchitectureDecoder OnlyDecoder Only
LicenseMITOSI-approvedMITOSI-approved
OpennessOpen sourceOpen source
WeightsUnknownUnknown
CodeUnknownUnknown
Commercial useCommercial use: permittedCommercial use: permitted
Knowledge cutoff-2025-02

Pricing and availability

Pricing attributeDeepSeek V3.2Phi-4 Mini Flash Reasoning
Input price$0.25/1M tokens-
Output price$0.38/1M tokens-
Providers

Capabilities

CapabilityDeepSeek V3.2Phi-4 Mini Flash Reasoning
VisionNoNo
MultimodalNoNo
ReasoningNoYes
JSON / Tool useNoNo
Structured outputsYesNo
Code executionYesNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

No shared benchmark scores are currently available for this pair.

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Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.