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ModelCap

Model decision surface

Compare AI models

Start with o3 and o3 Pro, or choose any two current ranked language models. Compare capability evidence, price, context, provider availability, and weight access without pretending one field decides every use case.

Current public data

o3 vs o3 Pro

Live dataset updated 8/17/2026, 11:13:20 PM UTC

Open 1200×630 evidence receipt
Factual comparison of o3 and o3 Pro
Field
o3

OpenAI

o3 Pro

OpenAI

ModelCap position#38#54
Index score55.146.5
EvidenceMeasured4 public benchmark observations across 4 boardsMeasured1 public benchmark observation across 1 board
Input / 1M$2.00$20.00
Output / 1M$8.00$80.00
Pricing statusfreshfresh
Context200K200K
Providers11
Weight accessAPI onlyAPI only

Decision facts

  • o3 is #38; o3 Pro is #54 on the same current language board.
  • Index scores are 55.1 for o3 and 46.5 for o3 Pro.
  • Both positions use Measured evidence.
  • Listed output price per 1M tokens is $8.00 for o3 and $80.00 for o3 Pro.
  • Published context is 200,000 tokens for o3 and 200,000 for o3 Pro.

These are separate published fields, not a synthetic winner. ModelCap does not collapse price, access, context, and capability evidence into a hidden recommendation score.

Each comparison page is a permanent, shareable URL with the same live figures as this tool: ModelCap Index position, API pricing, context window, provider count, weight access and every shared benchmark board.