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ModelCap

Model decision surface

Compare AI models

Start with GPT-4o (2024-08-06) and GPT-5.4 Nano, 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-4o (2024-08-06) vs GPT-5.4 Nano

Live dataset updated 10/18/2026, 2:34:27 PM UTC

Open 1200×630 evidence receipt
Factual comparison of GPT-4o (2024-08-06) and GPT-5.4 Nano
Field
ModelCap position#185#101
Index score36.853.4
EvidenceMeasured2 public benchmark observations across 2 boardsMeasured3 public benchmark observations across 3 boards
Input / 1M$2.50$0.20
Output / 1M$10.00$1.25
Pricing statusfreshfresh
Context128K400K
Providers22
Weight accessNo linked weightsNo linked weights

Decision facts

  • GPT-4o (2024-08-06) is #185; GPT-5.4 Nano is #101 on the same current language board.
  • Index scores are 36.8 for GPT-4o (2024-08-06) and 53.4 for GPT-5.4 Nano. Their published uncertainty intervals do not overlap, but the aggregate Index does not predict performance on every task; compare the relevant benchmark configurations before choosing.
  • Both positions use Measured evidence.
  • Listed output price per 1M tokens is $10.00 for GPT-4o (2024-08-06) and $1.25 for GPT-5.4 Nano. For 1,000 requests with 2,000 input and 500 output tokens each (2M input + 0.5M output), the listed-rate estimate is $10.00 for GPT-4o (2024-08-06) versus $1.02 for GPT-5.4 Nano. GPT-5.4 Nano costs 89.8% less in this scenario. This excludes caching, batch discounts, prompt-length tiers, tool charges and retries; verify the selected endpoint before budgeting.
  • Published context is 128,000 tokens for GPT-4o (2024-08-06) and 400,000 for GPT-5.4 Nano.

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.