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ModelCap

Model decision surface

Compare AI models

Start with Ox Alpha and Apertus 8B Instruct 2509, 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

Ox Alpha vs Apertus 8B Instruct 2509

Live dataset updated 8/22/2026, 12:43:30 PM UTC

Open 1200×630 evidence receipt
Factual comparison of Ox Alpha and Apertus 8B Instruct 2509
Field
Ox Alpha

Stealth

ModelCap position#168#170
Index score21.621.6
EvidenceEstimatedglobal corpus prior · leave-one-anchor-out calibratedEstimatedglobal corpus prior · leave-one-anchor-out calibrated
Input / 1MFreeUnavailable
Output / 1MFreeUnavailable
Pricing statusfreshunavailable
Context1M
Providers10
Weight accessAPI onlyOpen weights

Decision facts

  • Ox Alpha is #168; Apertus 8B Instruct 2509 is #170 on the same current language board.
  • Index scores are 21.6 for Ox Alpha and 21.6 for Apertus 8B Instruct 2509.
  • Both positions use Estimated evidence.
  • Weight access differs: Ox Alpha is none; Apertus 8B Instruct 2509 is open.
  • ModelCap currently lists 1 providers for Ox Alpha and 0 for Apertus 8B Instruct 2509.

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.