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.
1M—
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—
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.
$0.10—
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.
$1.00Google AI Studio—
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
$5.00Google AI Studio—
$900Google list price—
Benchmarks
Gray Swan IPI · k = 15Prompt injection robustness — Attackers hide malicious instructions inside content the AI reads — a web page, an email, a document — and try to hijack what it does. This variant gives the attacker 15 tries and counts an attack as successful if any of them works. Lower is better.
0.7%16.5%
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.
77.9%10%
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.
91.25%42.5%
Overview
CompanyGoogleMeta
Release dateSep 30 2026Apr 8 2026
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

Gemini 4 Argon leads Muse Spark on 3 of the 3 benchmarks they both report (Gray Swan IPI, DeepSWE 1.1, ARC-AGI-2). Only Gemini 4 Argon 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 Muse Spark. Muse Spark shipped 175 days before Gemini 4 Argon, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

On Gray Swan IPI · k = 15, Gemini 4 Argon leads at 0.7% vs Muse Spark at 16.5%. On DeepSWE 1.1, Gemini 4 Argon leads at 77.9% vs Muse Spark at 10%. On ARC-AGI-2, Gemini 4 Argon leads at 91.25% vs Muse Spark at 42.5%.