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Model comparison

GPT-5.5 vs GPT-5.5 Pro

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

Provider
OpenAI / OpenAI
OpenAI
Context
1M / 1M
text+image+file->text / text+image+file->text
Input price
$5.00 / $30.00
per 1M tokens
Output price
$30.00 / $180.00
per 1M tokens
Left model
GPT-5.5
OpenAI
FamilyGPT-5.5
Modalitytext+image+file->text

当前主推旗舰模型,适合复杂推理、编码、多工具企业工作流。

Right model
GPT-5.5 Pro
OpenAI
FamilyGPT-5.5
Modalitytext+image+file->text

高阶专业版追踪位,适合企业级重度编码、研究与复杂代理工作流。

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-5.5 is cheaper on combined input and output, but real routing, discounts, and limits still matter.

When context is similar, compare output quality, API stability, limits, and actually callable models first.

Decision boundary

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

  • GPT-5.5 is worth checking first when the GPT-5.5 family, 1M context, and text+image+file->text capability match the job.
  • GPT-5.5 Pro is worth checking first when the GPT-5.5 family, 1M context, and text+image+file->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-5.5, GPT-5.5, text+image+file->text
  • OpenAI: GPT-5.5 Pro, GPT-5.5, text+image+file->text

Commercial fit

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

  • GPT-5.5: 当前主推旗舰模型,适合复杂推理、编码、多工具企业工作流。
  • GPT-5.5 Pro: 高阶专业版追踪位,适合企业级重度编码、研究与复杂代理工作流。