Ultra Stack / AI

OpenAI

General reasoning, coding, research synthesis and multimodal production.

Made by OpenAI

Why I use it

Its job in the stack

I use OpenAI when a job needs strong general reasoning and dependable tool use rather than a narrowly scripted chatbot. It is especially useful for turning a mixed brief into code, structured analysis or a concrete artifact.

No model gets to be the whole system. OpenAI sits inside a workflow with source retrieval, local files, tests and human review, so fluent output is never treated as proof by itself.

Where it earns its place

Work I use it for

  • 01Coding and debugging
  • 02Structured analysis
  • 03Image and document work
  • 04Drafting with source material

Limits

What it does not solve

Outputs can be confident and wrong. Current facts, calculations and consequential claims still need direct verification.

For your own team

Deciding what belongs in your stack?

Bring the tools you pay for and the decision in front of you to a 45-minute Decision Session. You leave knowing what to keep, what to replace and what can wait.

¥28,000 + tax

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