LLM Reference

Gemma 3n 2B (free) vs Phi-4 Mini Flash Reasoning

Gemma 3n 2B (free) (2025) and Phi-4 Mini Flash Reasoning (2025) are frontier reasoning models from Google DeepMind and Microsoft Research. Gemma 3n 2B (free) ships a 8k-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.

Phi-4 Mini Flash Reasoning fits 16x more tokens; pick it for long-context work and Gemma 3n 2B (free) for tighter calls.

Decision scorecard

Local evidence first
SignalGemma 3n 2B (free)Phi-4 Mini Flash Reasoning
Best forgeneral production evaluationreasoning-heavy apps
Decision fitGeneralLong context
Context window8k128k
Cheapest output--
Provider routes1 tracked1 tracked
Shared benchmarks0 shared0 shared

Decision tradeoffs

Choose Gemma 3n 2B (free) when...
  • Use Gemma 3n 2B (free) when your own prompt tests beat the comparison signals; the local data does not show a decisive standalone advantage yet.
Choose Phi-4 Mini Flash Reasoning when...
  • Phi-4 Mini Flash Reasoning has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • 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.

Gemma 3n 2B (free)

Unavailable

No complete token price in local provider data

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

Gemma 3n 2B (free) -> Phi-4 Mini Flash Reasoning
  • Provider overlap exists on NVIDIA NIM; start route-level A/B tests there.
  • Phi-4 Mini Flash Reasoning adds Reasoning in local capability data.
Phi-4 Mini Flash Reasoning -> Gemma 3n 2B (free)
  • Provider overlap exists on NVIDIA NIM; start route-level A/B tests there.
  • Check replacement coverage for Reasoning before moving production traffic.

Specs

Specification
Released2025-04-032025-12-01
Context window8k128k
Parameters5B (2B effective active)3.8B
ArchitectureDecoder OnlyDecoder Only
LicenseGemmaMITOSI-approved
OpennessOpen weightsOpen source
Commercial useCommercial use: conditionalCommercial use: permitted
Knowledge cutoff2024-062025-02

Pricing and availability

Pricing attributeGemma 3n 2B (free)Phi-4 Mini Flash Reasoning
Input price--
Output price--
Providers

Pricing not yet sourced for either model.

Capabilities

CapabilityGemma 3n 2B (free)Phi-4 Mini Flash Reasoning
VisionNoNo
MultimodalNoNo
ReasoningNoYes
Function callingNoNo
Tool useNoNo
Structured outputsNoNo
Code executionNoNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

No shared benchmark scores are currently available for this pair.

Deep dive

The capability footprint differs most on reasoning mode: Phi-4 Mini Flash Reasoning. 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: Gemma 3n 2B (free) has no token price sourced yet and Phi-4 Mini Flash Reasoning has no token price sourced yet. Provider availability is 1 tracked routes versus 1. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.

Choose Gemma 3n 2B (free) when provider fit are central to the workload. Choose Phi-4 Mini Flash Reasoning when reasoning depth 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, Gemma 3n 2B (free) or Phi-4 Mini Flash Reasoning?

Phi-4 Mini Flash Reasoning supports 128k tokens, while Gemma 3n 2B (free) supports 8k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.

Is Gemma 3n 2B (free) or Phi-4 Mini Flash Reasoning open source?

Gemma 3n 2B (free) is listed under Gemma. Phi-4 Mini Flash Reasoning is listed under MIT. 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 reasoning mode, Gemma 3n 2B (free) or Phi-4 Mini Flash Reasoning?

Phi-4 Mini Flash Reasoning has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.

Where can I run Gemma 3n 2B (free) and Phi-4 Mini Flash Reasoning?

Gemma 3n 2B (free) is available on NVIDIA NIM. Phi-4 Mini Flash Reasoning is available on NVIDIA NIM. Provider coverage can affect latency, region availability, compliance posture, and fallback options.

When should I pick Gemma 3n 2B (free) over Phi-4 Mini Flash Reasoning?

Phi-4 Mini Flash Reasoning fits 16x more tokens; pick it for long-context work and Gemma 3n 2B (free) for tighter calls. If your workload also depends on provider fit, start with Gemma 3n 2B (free); if it depends on reasoning depth, run the same evaluation with Phi-4 Mini Flash Reasoning.

Continue comparing

Last reviewed: 2026-05-22. Data sourced from public model cards and provider documentation.