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ModelCap

Model decision surface

Compare AI models

Start with GPT-5.5 Pro and Step3 VL 10B, 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

GPT-5.5 Pro vs Step3 VL 10B

Live dataset updated 9/9/2026, 10:25:31 PM UTC

Open 1200×630 evidence receipt
Factual comparison of GPT-5.5 Pro and Step3 VL 10B
Field
Step3 VL 10B

Stepfun Ai

ModelCap position#51#49
Index score59.360.0
EvidenceMeasuredpublisher-corpus-prior over 183 held-out anchors (59%); 1 specialist-board observation at 2.1% support (41%); shrunk 14.4 toward the measured corpusEstimatedglobal-corpus-prior over 183 held-out anchors (17%); launch card against 2 resolved peers on 4 rows (83%); exceeds every named peer on 3 of 4 rows; no cross-lab optimism probe available; shrunk 1.4 toward the measured corpus
Input / 1M$30.00Unavailable
Output / 1M$180Unavailable
Pricing statusfreshunavailable
Context1M—
Providers10
Weight accessAPI onlyOpen weights

Decision facts

  • GPT-5.5 Pro is #51; Step3 VL 10B is #49 on the same current language board.
  • Index scores are 59.3 for GPT-5.5 Pro and 60.0 for Step3 VL 10B. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.
  • Evidence differs: GPT-5.5 Pro is Measured; Step3 VL 10B is Estimated.
  • Weight access differs: GPT-5.5 Pro is none; Step3 VL 10B is open.
  • ModelCap currently lists 1 providers for GPT-5.5 Pro and 0 for Step3 VL 10B.

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.