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 · base tier
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
—$0.20
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.
—$1.20
Cached input priceA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again.
—$0.02
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.
—$0.10OpenAI
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
—$0.60OpenAI
—$100OpenAI list price
Benchmarks
Terminal-Bench 2.1Agentic terminal coding — Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better.
50.98%82.5%
BrowseCompWeb browsing — Can the AI browse the web and track down hard-to-find answers? Higher is better.
66.75%83.3%
Overview
CompanyNVIDIAOpenAI
Release dateOct 15 2026Jun 26 2026
AccessOpen WeightClosed
Model detailsView modelView model

Frequently asked questions

GPT-5.6 Luna leads Nemotron 3.5 Bolt 74B on 2 of the 2 benchmarks they both report (Terminal-Bench 2.1, BrowseComp). Only GPT-5.6 Luna has a verified first-party API price: $0.20 per million input tokens and $1.20 per million output tokens. No pay-as-you-go API rate is tracked for Nemotron 3.5 Bolt 74B. GPT-5.6 Luna shipped 111 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-5.6 Luna is closed.

On Terminal-Bench 2.1, GPT-5.6 Luna leads at 82.5% vs Nemotron 3.5 Bolt 74B at 50.98%. On BrowseComp, GPT-5.6 Luna leads at 83.3% vs Nemotron 3.5 Bolt 74B at 66.75%.