Compare AI models

Specifications
ParametersA rough measure of how big the model is. More parameters usually means more capable and more expensive to run, though it is a poor guide on its own — a smaller, newer model often beats a larger, older one.
74B—
API pricingUSD per 1M tokens · lower wins
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
—$30.00
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one.
—$180.00
Cheapest inputLowest input rate across every provider on OpenRouter, the lab included. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page.
—$15.00OpenAI
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
—$90.00OpenAI
—$15,000OpenAI list price
Benchmarks
BrowseCompWeb browsing — Can the AI browse the web and track down hard-to-find answers? Higher is better.
66.75%90.1%
Overview
CompanyNVIDIAOpenAI
Release dateOct 15 2026Apr 23 2026
AccessOpen WeightClosed
Model detailsView modelView model

Frequently asked questions

GPT-5.5-Pro leads Nemotron 3.5 Bolt 74B on 1 of the 1 benchmark they both report (BrowseComp). Only GPT-5.5-Pro has a verified first-party API price: $30.00 per million input tokens and $180.00 per million output tokens. No pay-as-you-go API rate is tracked for Nemotron 3.5 Bolt 74B. GPT-5.5-Pro shipped 175 days before Nemotron 3.5 Bolt 74B, so benchmark comparisons should account for the intervening progress.

Nemotron 3.5 Bolt 74B is open weight, while GPT-5.5-Pro is closed.

On BrowseComp, GPT-5.5-Pro leads at 90.1% vs Nemotron 3.5 Bolt 74B at 66.75%.