What each product actually is in 2026
Gemini is Google's flagship AI. The Gemini app reached macOS as a native Apple Silicon app in April 2026, with an Option+Space global shortcut, screen sharing, local file drag-and-drop, and Gemini Live voice mode. In May 2026 at I/O, Google announced **Gemini Spark**, a 24/7 agentic personal assistant built on Gemini 3.5 Flash and Google's Antigravity agent harness. Spark runs on dedicated virtual machines in Google Cloud, so it keeps working on long tasks even when your phone and laptop are off. It drafts emails, monitors your inbox, tracks deadlines, and acts across Gmail, Docs, Drive, Calendar, Chrome, and third-party tools via MCP. As of June 2026 Spark is in limited beta for Google AI Ultra subscribers in the United States.
Jarvis is a different category. It is a free, open-source, on-device AI voice assistant and agent for Mac (Apple Silicon M1 to M4 and Intel, macOS 12 and up). Dictation runs on-device at roughly 240ms latency, about 4x faster than typing, and your audio never leaves the machine. Jarvis controls your real Mac apps by voice, keeps a persistent on-device memory of people, projects, and preferences, runs scheduled routines, and connects to Gmail, Calendar, Slack, Notion, Linear, GitHub, Jira, and Spotify. It supports MCP both ways: connect any tool to Jarvis, and expose Jarvis to coding agents like Claude Code or Cursor. Jarvis 2.0 is in private beta. See the docs for the full capability list.
At a glance
**Platform.** Gemini is everywhere: web, Android, iOS, and a native Mac app (Apple Silicon only, macOS 15+). Jarvis is Mac-only and built for it, supporting Apple Silicon and Intel on macOS 12+.
**Where it runs.** Gemini and Gemini Spark run in Google's cloud; Spark literally runs on Google Cloud VMs. Jarvis runs on-device by default, and any cloud model is optional and uses your own API key.
**Voice.** Gemini has Gemini Live, a capable conversational voice mode available from the free tier up. Jarvis is voice-first: low-latency on-device dictation plus voice control of your actual apps.
**Agent.** Gemini Spark is a background cloud agent for your digital life, strongest inside Google Workspace. Jarvis is a foreground on-device agent that operates your real machine, files, and local apps, and runs routines on a schedule.
**Price.** Gemini has a free tier; Gemini Live is included free. Spark requires Google AI Ultra, which starts at about $99.99/month in 2026 (a higher Ultra tier runs $200/month). Jarvis is free and open source.
**Privacy.** Gemini processes in the cloud under Google's policies. Jarvis keeps dictation audio and memory on-device.
Where Gemini (Gemini Spark) is better
Give Google real credit here. Gemini's models are among the most capable in the world, with a 1M-token context window on Gemini 3.1 Pro and frontier reasoning that an on-device model cannot match for heavy research, long-document synthesis, or complex multi-step planning. If your work lives in Google Workspace, nothing integrates more naturally: Spark reads across your Gmail, Docs, Sheets, and Slides to draft in context, and you can even email the agent directly at a dedicated address.
Gemini Spark's 24/7 cloud execution is a genuine advantage Jarvis does not try to replicate. Because Spark runs on Google Cloud VMs, it can grind on long-running tasks overnight regardless of whether your laptop is open or your phone is on. Gemini is also truly cross-platform: the same assistant follows you across web, Android, iOS, and Mac, with generation tools like Veo and Nano Banana built in. And Gemini Live is a polished, widely available voice mode included even on free plans. If you want one cloud brain that spans every device and every Google surface, Gemini is the stronger pick.
Where Jarvis is better
Jarvis wins when the work is on your Mac and the data is yours. Dictation is on-device at roughly 240ms, about 4x faster than typing, and the audio never leaves your machine, so it works on a plane, in a security-conscious org, or anywhere you would not paste a transcript into a cloud service. Spark acts mostly inside Google's ecosystem and the web through Chrome; Jarvis drives your *actual* local apps, files, and system by voice, with screen vision and experimental browser computer-use.
Jarvis keeps a persistent on-device memory of your people, projects, and preferences, and runs routines on a schedule, including while you sleep, without renting cloud VMs. It is free and open source, with no subscription gate on its agent, unlike Spark which sits behind Google AI Ultra. And its MCP support runs both directions: connect any tool to Jarvis, and expose Jarvis itself to coding agents like Claude Code and Cursor. If you want a private, Mac-native, voice-first assistant that operates your real machine, Jarvis is the better fit. See why it leads for Mac and try the beta download.
Pricing and platform facts
Gemini has a free tier and paid plans: Google AI Plus around $7.99/month, Google AI Pro at $19.99/month with Gemini 3.1 Pro and a 1M-token context window, and Google AI Ultra starting around $99.99/month, with a higher Ultra tier at $200/month (reduced from $250 at I/O 2026). Gemini Live voice mode is included across tiers, including free. **Gemini Spark is in limited beta for US AI Ultra subscribers, available on both the $99.99 and $200 Ultra tiers.** The native Gemini Mac app needs Apple Silicon and macOS 15 or later; Intel Macs are not supported.
Jarvis is free and open source. It runs on Apple Silicon (M1 to M4) and Intel Macs on macOS 12 and up, so it covers older hardware the Gemini Mac app does not. Optional cloud models use your own API key, so you control that cost and that data. Jarvis 2.0 is in private beta; join the waitlist or grab the beta build.
Privacy posture
This is the clearest dividing line. Gemini is a cloud service: prompts, shared screens, and uploaded files are processed on Google's servers under Google's policies, and Gemini Spark runs your tasks on Google Cloud VMs. Google states Spark does not read your email indiscriminately and asks for explicit approval before high-risk actions like sending mail, which is a reasonable design. But the data still leaves your device by definition.
Jarvis is on-device first. Dictation audio is processed locally and never leaves your Mac, and your memory of people, projects, and preferences stays on-device. You only send data to the cloud if you opt into an optional cloud model with your own API key, and you decide which model and which provider. For regulated work, offline use, or anyone who simply prefers their voice and files to stay local, that default matters.
Verdict
Choose Gemini, and Gemini Spark, when you want frontier cloud intelligence, deep Google Workspace integration, a true cross-platform assistant, and a 24/7 agent that runs in the cloud while your devices are off. It is excellent at that, and Gemini Live is a strong free voice mode.
Choose Jarvis when the work is on your Mac and privacy is not negotiable: instant on-device dictation, voice control of your real apps, persistent local memory, scheduled routines, two-way MCP, free and open source. The honest caveat is that Jarvis 2.0 is in private beta, so expect rough edges, and its on-device models will not out-reason Gemini's largest cloud models on the hardest tasks. Many people will run both: Gemini as the cloud brain, Jarvis as the private, Mac-native hands. Start with the beta download or read the docs.
Frequently asked questions
What is Gemini Spark and how is it different from the Gemini app?
Gemini Spark is Google's 24/7 agentic personal assistant, announced at Google I/O in May 2026. Unlike the standard Gemini app, which answers prompts on demand, Spark runs continuously on Google Cloud VMs and takes action across Gmail, Docs, Drive, Calendar, Chrome, and third-party tools via MCP, even when your devices are off. As of June 2026 it is in limited beta for Google AI Ultra subscribers in the US.
Is there a Gemini assistant for Mac in 2026?
Yes. Google released a native Gemini app for macOS in April 2026. It runs on Apple Silicon, requires macOS 15 or later, and offers an Option+Space global shortcut, screen sharing, local file drag-and-drop, and Gemini Live voice. Note that it does not support Intel Macs and processing happens in Google's cloud. Jarvis, by contrast, runs on Apple Silicon and Intel on macOS 12+ and keeps dictation on-device.
Jarvis vs Gemini: which is more private?
Jarvis. Its dictation runs on-device and the audio never leaves your Mac, and its memory stays local; cloud models are optional and use your own API key. Gemini and Gemini Spark are cloud services that process your prompts, screens, files, and tasks on Google's servers. Google adds approval gates for high-risk actions, but data still leaves the device by design.
How much does Gemini Spark cost versus Jarvis?
Gemini Spark requires Google AI Ultra, which starts around $99.99/month in 2026, with a higher Ultra tier at $200/month (reduced from $250 at I/O 2026). Spark is available on both Ultra tiers. The general Gemini app has a free tier and paid plans starting at $7.99 and $19.99/month, and Gemini Live voice is included free. Jarvis is free and open source; you only pay if you choose to use an optional cloud model with your own API key.
Can Gemini Spark control my Mac and local apps the way Jarvis does?
Not in the same way. Gemini Spark acts mainly inside Google Workspace and the web through Chrome, running in the cloud. Jarvis is built to drive your actual Mac by voice: it controls local apps, has screen vision, runs scheduled routines, and supports MCP in both directions so coding agents like Claude Code and Cursor can call Jarvis. For operating your real machine, Jarvis is the closer fit.