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 · base tier
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
$0.50$1.25
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.
$3.00$2.50
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
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.
$0.325Alibaba—
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
$1.95Alibaba—
$163Alibaba$375SpaceXSI 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.
72%56%
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better.
78.8%76.7%
Overview
CompanyQwenSpaceXSI
Release dateApr 2 2026Feb 17 2026
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

Qwen3.6-Plus leads Grok 4.20 Beta on 2 of the 2 benchmarks they both report (BullshitBench v2, SWE-Bench Verified). Qwen3.6-Plus is cheaper on input: $0.50 vs $1.25 per million tokens. Grok 4.20 Beta is cheaper on output: $2.50 vs $3.00 per million tokens. Figures are base-tier rates. Grok 4.20 Beta shipped 44 days before Qwen3.6-Plus, 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 BullshitBench v2, Qwen3.6-Plus leads at 72% vs Grok 4.20 Beta at 56%. On SWE-Bench Verified, Qwen3.6-Plus leads at 78.8% vs Grok 4.20 Beta at 76.7%.