Compare AI models

Specifications
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view.
—1M
API pricingUSD per 1M tokens · lower wins
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.
$0.15DeepSeek$1.25Meta
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
$0.60DeepSeek$4.25Meta
$60.00DeepSeek$463Meta
Benchmarks
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%75.4%
Terminal-Bench 4.0Agentic terminal coding — Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Version 4.0 recalibrated how much time, CPU and memory each task gets, removed eight tasks and fixed nineteen, so fewer runs fail for reasons that have nothing to do with the model. Scores are not comparable with earlier versions. Higher is better.
42.3%14.55%
AutomationBenchBusiness workflows — Tests whether the AI can run real multi-step business workflows — the kind of end-to-end office processes companies want to automate — from start to finish. Higher is better.
60.5%49.4%
Overview
CompanyDeepSeekMeta
Release dateOct 17 2026Sep 2 2026
AccessOpen WeightClosed
Model detailsView modelView model

Frequently asked questions

DeepSeek-V4.1-Flash-1017 leads Muse Spark 1.3 on 3 of the 3 benchmarks they both report (DeepSWE 1.1, Terminal-Bench 4.0, AutomationBench). Muse Spark 1.3 shipped 45 days before DeepSeek-V4.1-Flash-1017, so benchmark comparisons should account for the intervening progress.

DeepSeek-V4.1-Flash-1017 is open weight, while Muse Spark 1.3 is closed.

On DeepSWE 1.1, DeepSeek-V4.1-Flash-1017 leads at 77% vs Muse Spark 1.3 at 75.4%. On Terminal-Bench 4.0, DeepSeek-V4.1-Flash-1017 leads at 42.3% vs Muse Spark 1.3 at 14.55%. On AutomationBench, DeepSeek-V4.1-Flash-1017 leads at 60.5% vs Muse Spark 1.3 at 49.4%.