Compare AI models

Specifications
ParametersThe learned values that shape how a model responds. B means billion and T means trillion. For mixture-of-experts models, the total count is larger than the number active for each token. Parameter count alone does not measure quality.
2.8T120B
Context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider.
1M1M
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.
—$0.10Crusoe
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
—$0.40Crusoe
—$40.00Crusoe · bf16
Benchmarks
Humanity's Last Exam · with toolsMultidisciplinary reasoning — Humanity's Last Exam — extremely hard expert questions across many subjects. “With tools” means the AI is allowed to search the web or run code while answering. Higher is better.
70%29.2%
Overview
CompanyMoonshot AINVIDIA
Release dateOct 23 2026Oct 15 2026
AccessOpen WeightOpen Weight
Model detailsView modelView model

Frequently asked questions

Kimi K3.1 Pro leads Nemotron 3.5 Super VL on 1 of the 1 benchmark they both report (Humanity's Last Exam). Nemotron 3.5 Super VL shipped 8 days before Kimi K3.1 Pro, so benchmark comparisons should account for the intervening progress.

Kimi K3.1 Pro has 2.8T parameters, while Nemotron 3.5 Super VL has 120B. Context windows are 1M (Kimi K3.1 Pro) vs 1M (Nemotron 3.5 Super VL).

On Humanity's Last Exam · with tools, Kimi K3.1 Pro leads at 70% vs Nemotron 3.5 Super VL at 29.2%.