Compare AI models

Specifications
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.
200k1M
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.
—$0.375Google AI Studio
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
—$1.875Google AI Studio
—$338Google
Benchmarks
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better.
34%35%
Overview
CompanyAnthropicGoogle
Release dateMay 22 2025Aug 13 2026
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

Gemini 3.7 Flash leads Claude Opus 4 on 1 of the 1 benchmark they both report (BullshitBench v2). Claude Opus 4 shipped 448 days before Gemini 3.7 Flash, so benchmark comparisons should account for the intervening progress.

Context windows are 200k (Claude Opus 4) vs 1M (Gemini 3.7 Flash).

On BullshitBench v2, Gemini 3.7 Flash leads at 35% vs Claude Opus 4 at 34%.