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.
—$0.0197Relace
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
—$0.047OpenInference
—$6.49OpenInference · fp4
Benchmarks
Terminal-Bench 4.0Agentic terminal coding — Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Version 4.0 recalibrated how much time, CPU and memory each task gets, removed eight tasks and fixed nineteen, so fewer runs fail for reasons that have nothing to do with the model. Scores are not comparable with earlier versions. Higher is better.
65.2%35.76%
AutomationBenchBusiness workflows — Tests whether the AI can run real multi-step business workflows — the kind of end-to-end office processes companies want to automate — from start to finish. Higher is better.
53.9%48.8%
Overview
CompanyGoogleZ.ai
Release dateOct 28 2026Aug 26 2026
AccessClosedOpen Weight
Model detailsView modelView model

Frequently asked questions

Gemini 4 Carbon leads GLM-5.3-Flash on 2 of the 2 benchmarks they both report (Terminal-Bench 4.0, AutomationBench). GLM-5.3-Flash shipped 63 days before Gemini 4 Carbon, so benchmark comparisons should account for the intervening progress.

Gemini 4 Carbon is closed, while GLM-5.3-Flash is open weight.

On Terminal-Bench 4.0, Gemini 4 Carbon leads at 65.2% vs GLM-5.3-Flash at 35.76%. On AutomationBench, Gemini 4 Carbon leads at 53.9% vs GLM-5.3-Flash at 48.8%.