SummitGovOnline

GPT-5 Mini vs OpenAI o4 Mini

Side-by-side comparison of pricing, capabilities, benchmarks, and use case fit.

O

GPT-5 Mini

OpenAI

Overall 86
fast
View model →
O

OpenAI o4 Mini

OpenAI

Overall 86
reasoning
View model →

Capability radar

Normalized coding, reasoning, writing, vision, context, and value

CodingReasoningWritingVisionContextValue
GPT-5 MiniOpenAI o4 Mini
Comparison of GPT-5 Mini vs OpenAI o4 Mini
MetricGPT-5 MiniOpenAI o4 Mini
Input Price / 1M$0.40$1.10
Output Price / 1M$1.60$4.40
Combined Price / 1M$2.00$5.50
Context Window400,000200,000
Coding Score8992
Reasoning Score8893
Vision Score8075
AudioNoNo
StreamingYesYes
Function CallingYesYes
Latency Tierfastreasoning
Release Date6/10/20264/16/2025

GPT-5 Mini — Strengths & Weaknesses

Strengths

  • Low cost
  • Fast
  • Strong coding for size

Weaknesses

  • Below full GPT-5 on hardest reasoning

OpenAI o4 Mini — Strengths & Weaknesses

Strengths

  • Reasoning + vision
  • Cost-effective for agents

Weaknesses

  • Still slower than standard chat models

Use Case Verdicts

Coding

OpenAI o4 Mini

OpenAI o4 Mini scores 92 vs 89 on coding benchmarks.

General Chat

GPT-5 Mini

GPT-5 Mini leads on writing quality (87 vs 84).

Long Context

GPT-5 Mini

GPT-5 Mini offers 400K tokens vs 200K.

Cost Efficiency

GPT-5 Mini

GPT-5 Mini is cheaper at $2.00/M combined vs $5.50/M.

Enterprise Use

OpenAI o4 Mini

OpenAI o4 Mini combines strong reasoning, tooling, and context for enterprise workloads.

Agent Workflows

OpenAI o4 Mini

OpenAI o4 Mini is better suited for agentic workflows with tool use and coding capability.