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.
1M1.05M
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
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
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.
$0.75Google$1.00OpenAI
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
$4.50Google$5.00OpenAI
$750Google AI Studio$900OpenAI 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.
20%59%
DeepSWE 1.1Agentic coding — Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. (Version 1.1 of the test.) Higher is better.
37%68.8%
ARC-AGI-2Abstract reasoning — Puzzle-style tests of abstract reasoning and pattern-finding — the kind of thing people find easy but AIs often struggle with. Higher is better.
72.1%89.58%
Overview
CompanyGoogleOpenAI
Release dateMay 19 2026Sep 22 2026
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

GPT-6 Sol leads Gemini 3.5 Flash on 3 of the 3 benchmarks they both report (BullshitBench v2, DeepSWE 1.1, ARC-AGI-2). Only GPT-6 Sol has a verified first-party price for an available API: $2.00 per million input tokens and $10.00 per million output tokens. No currently available pay-as-you-go API rate is tracked for Gemini 3.5 Flash. Gemini 3.5 Flash shipped 126 days before GPT-6 Sol, so benchmark comparisons should account for the intervening progress.

Context windows are 1M (Gemini 3.5 Flash) vs 1.05M (GPT-6 Sol).

On BullshitBench v2, GPT-6 Sol leads at 59% vs Gemini 3.5 Flash at 20%. On DeepSWE 1.1, GPT-6 Sol leads at 68.8% vs Gemini 3.5 Flash at 37%. On ARC-AGI-2, GPT-6 Sol leads at 89.58% vs Gemini 3.5 Flash at 72.1%.