LLM Reference

Codex Mini Latest vs Phi-4 Reasoning Vision 15B

Codex Mini Latest (2025) and Phi-4 Reasoning Vision 15B (2026) compare a coding-specialized model against a standalone API model. Codex Mini Latest ships a 200k-token context window, while Phi-4 Reasoning Vision 15B ships a not-yet-sourced context window. This page treats the result as workflow and deployment fit, not a universal model winner.

Treat this as a product-type comparison: Codex Mini Latest is coding-specialized model, while Phi-4 Reasoning Vision 15B is standalone API model. Choose based on workflow fit before reading any benchmark or price row as decisive.

Decision scorecard

Local evidence first
SignalCodex Mini LatestPhi-4 Reasoning Vision 15B
Product typeCoding-specialized modelStandalone API model
Best forcustom coding agents and code generationmultimodal apps
Decision fitCoding and Long contextVision
Context window200k
Cheapest output--
Provider routes0 tracked0 tracked
Shared benchmarks0 rows0 rows

Decision tradeoffs

Choose Codex Mini Latest when...
  • Codex Mini Latest has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • Local decision data tags Codex Mini Latest for Coding and Long context.
Choose Phi-4 Reasoning Vision 15B when...
  • Phi-4 Reasoning Vision 15B uniquely exposes Vision and Multimodal in local model data.
  • Local decision data tags Phi-4 Reasoning Vision 15B for Vision.

Monthly cost at traffic

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

Codex Mini Latest

Unavailable

No complete token price in local provider data

Phi-4 Reasoning Vision 15B

Unavailable

No complete token price in local provider data

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

Switch friction

Codex Mini Latest -> Phi-4 Reasoning Vision 15B
  • No overlapping tracked provider route is sourced for Codex Mini Latest and Phi-4 Reasoning Vision 15B; plan for SDK, billing, or endpoint changes.
  • Phi-4 Reasoning Vision 15B adds Vision and Multimodal in local capability data.
Phi-4 Reasoning Vision 15B -> Codex Mini Latest
  • No overlapping tracked provider route is sourced for Phi-4 Reasoning Vision 15B and Codex Mini Latest; plan for SDK, billing, or endpoint changes.
  • Check replacement coverage for Vision and Multimodal before moving production traffic.

Specs

Specification
Released2025-05-162026-03-12
Context window200k
Parameters15B
Architecturedecoder only-
LicenseProprietaryMIT(OSI)
OpennessProprietaryOpen source
Commercial useCommercial use with conditionsCommercial use allowed
Knowledge cutoff2024-062025-03

Pricing and availability

Pricing attributeCodex Mini LatestPhi-4 Reasoning Vision 15B
Input price--
Output price--
Providers--

Pricing not yet sourced for either model.

Capabilities

CapabilityCodex Mini LatestPhi-4 Reasoning Vision 15B
VisionNoYes
MultimodalNoYes
ReasoningNoNo
Function callingNoNo
Tool useNoNo
Structured outputsNoNo
Code executionNoNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

No shared benchmark rows are currently sourced for this pair.

Deep dive

The capability footprint differs most on vision: Phi-4 Reasoning Vision 15B and multimodal input: Phi-4 Reasoning Vision 15B. 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: Codex Mini Latest has no token price sourced yet and Phi-4 Reasoning Vision 15B has no token price sourced yet. Provider availability is 0 tracked routes versus 0. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.

Choose Codex Mini Latest when coding workflow support are central to the workload. Choose Phi-4 Reasoning Vision 15B when vision-heavy evaluation 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

Is Codex Mini Latest or Phi-4 Reasoning Vision 15B open source?

Codex Mini Latest is listed under Proprietary. Phi-4 Reasoning Vision 15B 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 vision, Codex Mini Latest or Phi-4 Reasoning Vision 15B?

Phi-4 Reasoning Vision 15B 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, Codex Mini Latest or Phi-4 Reasoning Vision 15B?

Phi-4 Reasoning Vision 15B 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.

When should I pick Codex Mini Latest over Phi-4 Reasoning Vision 15B?

Treat this as a product-type comparison: Codex Mini Latest is coding-specialized model, while Phi-4 Reasoning Vision 15B is standalone API model. Choose based on workflow fit before reading any benchmark or price row as decisive. If your workload also depends on coding workflow support, start with Codex Mini Latest; if it depends on vision-heavy evaluation, run the same evaluation with Phi-4 Reasoning Vision 15B.

Continue comparing

Last reviewed: 2026-06-04. Data sourced from public model cards and provider documentation.