On blended cost, OpenAI: GPT-5.5 Pro ($67.50/M) is about 74% cheaper than OpenAI: o1-pro ($262/M) per 1M tokens. OpenAI: GPT-5.5 Pro wins on input price, OpenAI: GPT-5.5 Pro on output, and OpenAI: GPT-5.5 Pro has the larger context window.
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Frequently asked questions
- Is OpenAI: o1-pro or OpenAI: GPT-5.5 Pro cheaper?
- On a blended basis OpenAI: GPT-5.5 Pro is cheaper at $67.50/M per 1M tokens versus $262/M for OpenAI: o1-pro — about 74% less. Blended weights input 3:1 over output.
- OpenAI: o1-pro vs OpenAI: GPT-5.5 Pro: input token cost?
- OpenAI: o1-pro charges $150/M per 1M input tokens; OpenAI: GPT-5.5 Pro charges $30.00/M. OpenAI: GPT-5.5 Pro is cheaper on input.
- OpenAI: o1-pro vs OpenAI: GPT-5.5 Pro: output token cost?
- OpenAI: o1-pro charges $600/M per 1M output tokens; OpenAI: GPT-5.5 Pro charges $180/M. OpenAI: GPT-5.5 Pro is cheaper on output.
- Which has the larger context window, OpenAI: o1-pro or OpenAI: GPT-5.5 Pro?
- OpenAI: o1-pro supports 200,000 tokens and OpenAI: GPT-5.5 Pro supports 1,050,000 tokens, so OpenAI: GPT-5.5 Pro handles longer inputs in a single call.
- How do I track OpenAI: o1-pro and OpenAI: GPT-5.5 Pro price changes?
- Token Price Index Pro ($9/mo) emails you the instant either model changes price, so a hike never catches you out.
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