It's difficult to get away from AI inside apps and on devices now, and if you're making a lot of use of these tools, you might be thinking about subscribing to a paid tier. While all the major AI chatbots offer free access, subscription plans offer more features and extended usage limits. Of course, there are a host of options to pick from—several big AI services, all with multiple plans at different price points. This guide should help you make some sense of the various offerings, and help you decide on the right one (or two) for you.

What's not included here is any assessment of which AI models are "better" than others. That can be difficult to measure, especially as models frequently change. Using the free tiers for these bots should give you a good idea of which AI models you like best, and which give the most relevant responses to your queries.

Gemini

Google doesn't specify what the "standard limits" are for free Gemini usage, but it does say that AI Plus users get twice those limits, while AI Pro users get four times those limits. If you pay for AI Ultra, you get five times or 20 times the limits of AI Pro, depending on how much you're spending. The AI Pro and AI Ultra plans give you access to the latest AI models from Google.

Context windows go up with each tier, too, which is how much the AI can keep in its memory per conversation. The standard on free plans is 32K tokens (the blocks of info that AI bots work with), which add up to around 24,000 words. For AI Plus plans, that goes up to 128K tokens (about 96,000 words), and for all the other paid plans, you get one million tokens (about 750,000 words).

You can generate text, code, audio, images, and video with Gemini. It features a deep research mode, the ability to create custom AI bots with Gemini Gems, and scheduled actions. Most features are available on all the plans, but you'll find some exceptions. Video generation requires a paid plan, as does image editing. The new Gemini Spark AI agent is currently available only to AI Ultra subscribers.

Gemini makes sense if you already use a lot of Google apps (Gmail, Google Maps, Google Docs) and Android. After all, it's built right in. It's also worth noting that you get a host of extras included with these AI plans: more Google One storage at each tier, as well as YouTube Premium, Google Home Premium, and the new Google Health Premium (for AI Pro and AI Ultra plans).

• Paid plans: AI Plus ($7.99 a month), AI Pro ($19.99 a month), AI Ultra (either $99.99 or $199.99 a month)

ChatGPT

It's not particularly easy to figure out usage limits on the ChatGPT plans, but what we know for sure is that the Pro plans give you five times or 20 times the usage of Plus plans, for $100 or $200 a month, respectively. A Pro plan gives you unlimited messages with the latest models too, whereas on Go and Plus, you're limited to 160 every three hours. Also of note: The Go plan may display ads at times.

For context windows, again, OpenAI doesn't make it particularly clear. Free users get 16K tokens (roughly 12,000 words), which goes up to 32K tokens (24,000 words) for Plus users, but there's no mention of the Go plan. Pro users currently get 128K tokens (96,000 words) for GPT‑5.5 Instant, and 400K tokens (300,000 words) for GPT-5.5 Thinking—the best models ChatGPT has at the moment.

ChatGPT is able to generate text, code, and images for you. It has a deep research mode available to everyone, and support for custom AI bots (which it calls GPTs) on the Plus and Pro tiers. In general, paying more gets you more of everything: more messages, more uploads, more image generations, and access to the latest models first.

There's no wider ChatGPT suite of tools behind the AI chatbot, though it can connect up to a host of apps—including Photoshop, Figma, Spotify, Apple Music, Airtable, and plenty more. It also has its own experimental browser (ChatGPT Atlas), but it's very platform-agnostic when it comes to what it works best with.

• Paid plans: Go ($8 a month), Plus ($20 a month), Pro ($100 or $200 a month)

Claude

You wouldn't really describe Claude's usage plans as straightforward, but obviously, the more money you pay a month, the more usage you get. Exactly how much usage that works out to "is affected by several factors, including the length and complexity of your conversations, the features you use, and which Claude model you're chatting with," according to the official documentation.

Context windows are the same on all three paid plan tiers: 200K tokens (about 150,000 words). What the context window is for free users isn't specified anywhere. Claude does let you pay as you go, to some extent, if you need extra AI usage on top of what you're already being charged for your subscription.

Coders frequently choose Claude for development, and, of course, it can also do general text output. It can't do images or video, though it can do basic visualizations (like charts and diagrams), and also offers the Canva-like Claude Design portal that will generate user interfaces, slideshows, and mock-ups for you. There's also a deep research tool here as well.

Like ChatGPT, and unlike Gemini, Claude isn't really tied to any particular ecosystem. However, it can connect to a multitude of other apps that you can then run through Claude, including Canva, Gmail, Slack, and Uber. There's also a Skills feature, where you can create customized instruction prompts for Claude to run again and again.

• Paid plans: Pro ($20 a month), Max ($100 or $200 a month)

Copilot

Copilot is unusual here, because (for individuals, rather than software developers) it's tied into Microsoft 365 (previously Microsoft Office) subscriptions. If you sign up for Word, Excel, and PowerPoint, then you get Copilot as well, at the two main pricing tiers.

While Microsoft isn't too precise about Copilot's usage limits, it does say that Personal subscribers get "higher than free" usage limits, and Premium subscribers get the "highest" limits. This applies to image generation too, while AI agents and audio creation are exclusive to the Premium tier. Microsoft doesn't say anything about context limits for individual users.

Copilot can create text and images, deploy a deep research mode, and connect to third-party services such as Gmail and Dropbox. There aren't quite as many of the AI bot features as you'll find elsewhere, like scheduled tasks or custom-made AIs for specific purposes, though there is a neat Study and Learn mode.

As with Gemini and Google, the primary reason to pick Copilot for your paid AI subscription is if you're already invested in Windows, the Edge browser, and Microsoft's office apps. Copilot integrates deeply into these pieces of software, and so is easier to call on if you need AI assistance.

• Paid plans: Personal ($9.99 a month), Premium ($19.99 a month)

Perplexity

Perplexity models itself as more of an AI research tool and search engine, rather than an AI chatbot in the more general sense—like ChatGPT or Gemini. You can actually use Gemini, ChatGPT, and Claude models inside Perplexity, as well as Perplexity's own models (or use several in combination).

There's little official information from Perplexity about exact usage limits or context windows, though the more you pay, the more usage you'll get: The Max tier is described as offering the "highest usage and top performance", and gives you access to the "most advanced AI reasoning models".

Perplexity does offer tools like deep research and custom AI silos that it calls Spaces—complete with their own custom prompts and specific models. You can create images and videos with Perplexity, but it relies on third-party models for the task, and (anecdotally at least) usage limits seem to be quite tight.

The primary reason to sign up for a Perplexity subscription is if you find its focus on web search and information gathering useful. It also has its own browser, as well as some agentic tools that can carry out actions online for you. It's more focused than other AI chatbots, which may or may not be what you're looking for.

• Paid plans: Pro ($20 a month), Max ($200 a year)