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.
—$0.75
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.
—$3.75
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.
—$0.075
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.
—$0.375Google
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
—$1.875Google
—$338Google list price
Benchmarks
SWE-Bench ProAgentic coding — Can the AI fix real bugs in real software? It's handed actual problems from open-source projects and has to write code that genuinely solves them. Higher is better.
77.8%58.7%
OSWorld-VerifiedAgentic computer use — Can the AI actually operate a computer — clicking, typing, and using real apps — to finish tasks on its own? Higher is better.
79.6%83%
CharXiv ReasoningChart reasoning — Can the AI read and reason about complex charts and figures, not just text? Higher is better.
86.1%85.2%
CharXiv Reasoning · with toolsChart reasoning — The same chart-and-figure reasoning test, run with the AI allowed to use tools — writing code to inspect the image, for instance — rather than reading the chart unaided. Scores run higher than the unaided version, so read the two as separate tests. Higher is better.
93.2%89.4%
Overview
CompanyAnthropicGoogle
Release dateApr 7 2026Jul 21 2026
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

Claude Mythos Preview leads Gemini 3.6 Flash on 3 of the 4 benchmarks they both report (SWE-Bench Pro, OSWorld-Verified, CharXiv Reasoning). Only Gemini 3.6 Flash has a verified first-party price for an available API: $0.75 per million input tokens and $3.75 per million output tokens. No currently available pay-as-you-go API rate is tracked for Claude Mythos Preview. Claude Mythos Preview shipped 105 days before Gemini 3.6 Flash, so benchmark comparisons should account for the intervening progress.

Context windows are 1M (Claude Mythos Preview) vs 1M (Gemini 3.6 Flash).

On SWE-Bench Pro, Claude Mythos Preview leads at 77.8% vs Gemini 3.6 Flash at 58.7%. On OSWorld-Verified, Gemini 3.6 Flash leads at 83% vs Claude Mythos Preview at 79.6%. On CharXiv Reasoning, Claude Mythos Preview leads at 86.1% vs Gemini 3.6 Flash at 85.2%. On CharXiv Reasoning · with tools, Claude Mythos Preview leads at 93.2% vs Gemini 3.6 Flash at 89.4%.