OpenAI o4-mini vs GPT-5.4 nano

A side-by-side comparison to help you choose the right tool.

OpenAI o4-mini scores higher overall (88/100)

But the best choice depends on your specific needs. Compare below.

Pricing
Available through OpenAI products and API access paths; pricing depends on plan or API usage.
Free plan
No
Best for
Developers who want reasoning without premium-model latency, Teams building cost-conscious agent or API workflows, Users handling math, coding, and structured analysis at scale
Platforms
web, ios, android, api
API
Yes
Languages
en
Pricing
Usage-based via OpenAI API pricing and model availability in supported endpoints.
Free plan
No
Best for
Builders optimizing for latency and cost, Background automations and triage flows, High-volume classification, routing, or lightweight generation tasks
Platforms
api
API
Yes
Languages
en

Choose OpenAI o4-mini if:

  • You are Developers who want reasoning without premium-model latency
  • You are Teams building cost-conscious agent or API workflows
  • You are Users handling math, coding, and structured analysis at scale
Read OpenAI o4-mini review →

Choose GPT-5.4 nano if:

  • You are Builders optimizing for latency and cost
  • You are Background automations and triage flows
  • You are High-volume classification, routing, or lightweight generation tasks
Read GPT-5.4 nano review →

FAQ

What is the difference between OpenAI o4-mini and GPT-5.4 nano?
OpenAI o4-mini is a smaller, faster reasoning model from openai aimed at high-throughput tasks that still benefit from tool use and structured thinking. GPT-5.4 nano is openai's lightweight gpt-5.4-class option for simple, fast, and cost-sensitive api tasks.
Which is cheaper, OpenAI o4-mini or GPT-5.4 nano?
OpenAI o4-mini: Available through OpenAI products and API access paths; pricing depends on plan or API usage.. GPT-5.4 nano: Usage-based via OpenAI API pricing and model availability in supported endpoints..
Who is OpenAI o4-mini best for?
OpenAI o4-mini is best for Developers who want reasoning without premium-model latency, Teams building cost-conscious agent or API workflows, Users handling math, coding, and structured analysis at scale.
Who is GPT-5.4 nano best for?
GPT-5.4 nano is best for Builders optimizing for latency and cost, Background automations and triage flows, High-volume classification, routing, or lightweight generation tasks.