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.
1.05M200k
API pricingUSD per 1M tokens · lower wins · base tier
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
$2.00$150.00
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$600.00
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—
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.
$1.00OpenAI$150.00OpenAI
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
$5.00OpenAI$600.00OpenAI
$900OpenAI list price$60,000OpenAI list price
These models have no shared benchmark scores.
Overview
CompanyOpenAIOpenAI
Release dateSep 22 2026Mar 19 2025
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

GPT-6 Sol and o1-pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-6 Sol is cheaper on both input and output: $2.00 vs $150.00 per million input tokens, and $10.00 vs $600.00 per million output tokens. Figures are base-tier rates. o1-pro shipped 552 days before GPT-6 Sol, so benchmark comparisons should account for the intervening progress.

Context windows are 1.05M (GPT-6 Sol) vs 200k (o1-pro).

Direct benchmark comparisons are unavailable — GPT-6 Sol and o1-pro don't publish scores on any of the same benchmarks.