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.
1M1M
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.
$2.00$1.50
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.
$10.00$7.50
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.
$0.20$0.075
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.
$2.00Amazon Bedrock—
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
$10.00Amazon Bedrock—
$900Anthropic list price$675Google list price
Benchmarks
Chartography · no toolsChart tasks — The same chart-centred test with no tools: the AI has to read each chart unaided. Scores run far lower than the with-tools version, so read the two as separate tests. Higher is better.
15.6%66.6%
Overview
CompanyAnthropicGoogle
Release dateJun 30 2026Nov 12 2026
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

Gemini 4 Hydrogen leads Claude Sonnet 5 on 1 of the 1 benchmark they both report (Chartography). Gemini 4 Hydrogen is cheaper on both input and output: $1.50 vs $2.00 per million input tokens, and $7.50 vs $10.00 per million output tokens. Claude Sonnet 5 shipped 135 days before Gemini 4 Hydrogen, so benchmark comparisons should account for the intervening progress.

Context windows are 1M (Claude Sonnet 5) vs 1M (Gemini 4 Hydrogen).

On Chartography · no tools, Gemini 4 Hydrogen leads at 66.6% vs Claude Sonnet 5 at 15.6%.