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.
—320B
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.
—1M
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.
—$0.0052OpenInference
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
—$0.1985OpenInference
—$10.97OpenInference · fp4
These models have no shared benchmark scores.
Overview
CompanyMoonshot AIZ.ai
Release dateOct 23 2026Aug 26 2026
AccessClosedOpen Weight
Model detailsView modelView model

Frequently asked questions

Kimi K3.1 Pro Highspeed and GLM-5.3-Flash don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GLM-5.3-Flash shipped 58 days before Kimi K3.1 Pro Highspeed, so benchmark comparisons should account for the intervening progress.

Kimi K3.1 Pro Highspeed is closed, while GLM-5.3-Flash is open weight.

Direct benchmark comparisons are unavailable — Kimi K3.1 Pro Highspeed and GLM-5.3-Flash don't publish scores on any of the same benchmarks.