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Model comparison

GPT-5.4 Mini vs o3

Not a benchmark table. This puts pricing, context, interface fit, and key visibility into one decision card.

Provider
OpenAI / OpenAI
OpenAI
Context
400K / 200K
text+image+file->text / text+image->text
Input price
$0.75 / $10.00
per 1M tokens
Output price
$4.50 / $40.00
per 1M tokens
Left model
GPT-5.4 Mini
OpenAI
FamilyGPT-5.4
Modalitytext+image+file->text

高性价比主力通用模型,适合规模化生产环境。

Right model
o3
OpenAI
Familyo-series
Modalitytext+image->text

复杂推理和工具链场景常用旗舰。

Comparison summary

How to choose first

This is an internal OpenAI comparison, so the main question is tier, cost, context, and capability rather than provider switching.

On the listed price snapshot, GPT-5.4 Mini is cheaper on combined input and output, but real routing, discounts, and limits still matter.

GPT-5.4 Mini has the larger context window, which helps with long documents, knowledge bases, logs, and multi-turn workflows.

Decision boundary

Do not start with which model is absolutely stronger. Start with the boundary: cost, context, speed, quality, ecosystem, or supply stability.

  • GPT-5.4 Mini is worth checking first when the GPT-5.4 family, 400K context, and text+image+file->text capability match the job.
  • o3 is worth checking first when the o-series family, 200K context, and text+image->text capability match the job.

Key checking route

If you already hold a key, the valuable check is provider identity, callable models, and whether balance, limits, or subscription status are visible.

  • OpenAI: GPT-5.4 Mini, GPT-5.4, text+image+file->text
  • OpenAI: o3, o-series, text+image->text

Commercial fit

Commercially, do not look at model names alone. Combine price, limits, region, upstream stability, and ongoing monitoring.

  • GPT-5.4 Mini: 高性价比主力通用模型,适合规模化生产环境。
  • o3: 复杂推理和工具链场景常用旗舰。