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.
—120B
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.
—1M
Benchmarks
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better.
72.5%71.1%
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better.
79.6%89.52%
Overview
CompanyAnthropicNVIDIA
Release dateMay 22 2025Oct 15 2026
AccessClosedOpen Weight
Model detailsView modelView model

Frequently asked questions

Claude Opus 4 and Nemotron 3.5 Super VL are evenly matched across the 2 benchmarks they both report (SWE-Bench Verified, GPQA Diamond). Claude Opus 4 shipped 511 days before Nemotron 3.5 Super VL, so benchmark comparisons should account for the intervening progress.

Claude Opus 4 is closed, while Nemotron 3.5 Super VL is open weight.

On SWE-Bench Verified, Claude Opus 4 leads at 72.5% vs Nemotron 3.5 Super VL at 71.1%. On GPQA Diamond, Nemotron 3.5 Super VL leads at 89.52% vs Claude Opus 4 at 79.6%.