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.
1T74B
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view.
256k—
API pricingUSD per 1M tokens · lower wins
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.
$0.60Novita—
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
$2.50Novita—
$245Novita · fp8—
Benchmarks
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better.
75.1%86.43%
Overview
CompanyMoonshot AINVIDIA
Release dateSep 5 2025Oct 15 2026
AccessOpen WeightOpen Weight
Model detailsView modelView model

Frequently asked questions

Nemotron 3.5 Bolt 74B leads Kimi K2 (0905) on 1 of the 1 benchmark they both report (GPQA Diamond). Kimi K2 (0905) shipped 405 days before Nemotron 3.5 Bolt 74B, so benchmark comparisons should account for the intervening progress.

Kimi K2 (0905) has 1T parameters, while Nemotron 3.5 Bolt 74B has 74B.

On GPQA Diamond, Nemotron 3.5 Bolt 74B leads at 86.43% vs Kimi K2 (0905) at 75.1%.