Compare AI models

API pricingUSD per 1M tokens · lower wins
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
—$0.25
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one.
—$1.50
Cached input priceA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again.
—$0.025
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.
$0.50DeepInfra$0.125Google
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
$2.15DeepInfra$0.75Google
$208DeepInfra · fp4$125Google list price
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.
8%11%
Overview
CompanyDeepSeekGoogle
Release dateMay 28 2025Mar 3 2026
AccessOpen WeightClosed
Model detailsView modelView model

Frequently asked questions

Gemini 3.1 Flash-Lite leads DeepSeek R1-0528 on 1 of the 1 benchmark they both report (BullshitBench v2). Only Gemini 3.1 Flash-Lite has a verified first-party API price: $0.25 per million input tokens and $1.50 per million output tokens. No pay-as-you-go API rate is tracked for DeepSeek R1-0528. DeepSeek R1-0528 shipped 279 days before Gemini 3.1 Flash-Lite, so benchmark comparisons should account for the intervening progress.

DeepSeek R1-0528 is open weight, while Gemini 3.1 Flash-Lite is closed.

On BullshitBench v2, Gemini 3.1 Flash-Lite leads at 11% vs DeepSeek R1-0528 at 8%.