Claude is the most capable AI assistant available in 2026. Built by Anthropic, Claude has grown from a text-only chatbot into a full-featured work platform with 18.9 million monthly active users, 202.9 million monthly web visits, and over 300,000 business customers — including 70% of the Fortune 100 (DemandSage, 2026). Anthropic itself has reached $14 billion in annualized revenue with a $380 billion valuation, making it one of the fastest-growing technology companies in history.
But most people only scratch the surface of what Claude can actually do. This guide covers every capability Claude offers natively, every capability it gains through connected tools, how pricing works across every plan, and how to set up the full experience in under two minutes.
Part 1: What Claude Can Do Natively
These are the capabilities built directly into Claude at claude.ai and Claude Desktop. No extensions, no plugins, no extra setup required.
Conversations and Extended Thinking
At its core, Claude is a conversational AI that can reason through complex problems step by step. Claude's extended thinking mode lets it work through multi-step reasoning internally before responding, producing more accurate and nuanced answers for difficult questions — from math proofs to business strategy to legal analysis.
Claude supports a 200,000 token context window, equivalent to roughly 500 pages of text. This means you can paste in an entire book, a full codebase, or months of meeting notes and Claude will reason across all of it in a single conversation.
Artifacts
Artifacts are one of Claude's most distinctive features. When Claude creates something substantial — a document, a piece of code, an HTML page, an SVG graphic — it renders it in a dedicated panel alongside the conversation. You can see a live preview of what Claude built, iterate on it in conversation, and download the result.
This is not just syntax highlighting. Claude can generate fully interactive web applications, data visualizations, and rich documents that you can preview and use immediately. Artifacts turn Claude from "a chatbot that writes code" into "a tool that builds things you can use."
Projects
Projects let you give Claude persistent context about a specific area of work. You can upload documents, set custom instructions, and maintain a knowledge base that Claude references across every conversation within that project. This is powerful for recurring work — if you have a brand style guide, a technical specification, or a set of business rules, you upload them once and Claude remembers them every time.
Web Search
Claude can search the web in real time to answer questions that require current information. When you ask about recent events, current prices, live statistics, or anything beyond Claude's training data, it will search the web and cite its sources. This is built in and works automatically — Claude decides when a web search is needed based on your question.
File Handling
You can upload files directly to Claude for analysis. This includes PDFs, spreadsheets, images, code files, CSVs, and many other formats. Claude can read the contents, extract data, summarize key points, answer questions about the material, and cross-reference information across multiple uploaded files.
For example, you could upload a 200-page contract and ask Claude to identify every clause related to termination rights. Or upload a spreadsheet of sales data and ask for a trend analysis with recommendations.
Code Execution
Claude can write and run code within the conversation. This is not just generating code snippets — Claude can actually execute Python, JavaScript, and other languages, process data, generate charts, run calculations, and return the results. Combined with file uploads, this means you can give Claude raw data and get back processed analysis, visualizations, and insights.
Custom Visuals and Data Visualization
Through artifacts and code execution, Claude can create custom charts, graphs, diagrams, and interactive visualizations. Ask Claude to "create a bar chart comparing Q1 revenue across regions" and it will generate a live, interactive chart you can view and download. It handles everything from simple pie charts to complex multi-axis time series with annotations.
Cowork Mode
Launched on January 12, 2026, Cowork mode is one of Claude's newest and most powerful features. It lets Claude work autonomously alongside you — Claude can continue working on a task in the background while you focus on something else, checking in periodically with progress updates and questions. Think of it as having a capable colleague who takes initiative, works independently, and asks for clarification when needed.
Cowork mode is particularly useful for long-running tasks like research, document drafting, and data analysis where you want Claude to take the first pass while you focus on higher-priority work.
Memory
Claude can now remember important details across conversations. When you share preferences, background information, or recurring instructions, Claude stores these as memories and references them in future conversations. This means Claude gets better the more you use it — it learns your communication style, your project context, and your preferences without you having to repeat yourself.
Claude's Native Capabilities at a Glance
| Capability | What It Does | Best For |
|---|---|---|
| Extended thinking | Multi-step internal reasoning before responding | Complex analysis, math, strategy |
| 200K context window | Process ~500 pages in a single conversation | Large documents, codebases |
| Artifacts | Live preview of generated documents, code, visuals | Building functional outputs |
| Projects | Persistent context and document uploads per workspace | Recurring work with shared knowledge |
| Web search | Real-time internet search with source citations | Current events, live data |
| File handling | Upload and analyze PDFs, spreadsheets, images, code | Document analysis, data extraction |
| Code execution | Write and run code within the conversation | Data processing, automation |
| Custom visuals | Generate charts, graphs, and interactive diagrams | Data visualization, presentations |
| Cowork mode | Autonomous background work with check-ins | Long-running research and drafting |
| Memory | Remember preferences and context across sessions | Personalized, improving experience |
Part 2: What Claude Can Do with the Right Tools
Claude's native capabilities are impressive, but they have clear limits. Claude cannot generate images. It cannot create videos. It cannot access specialized databases, run SEO audits, or find contact information for sales leads. These limitations disappear when you connect Claude to external tools.
The Model Context Protocol (MCP) is the open standard, created by Anthropic, that lets Claude connect to external tools. Through MCP, Claude can discover and use any tool that a connected server exposes — automatically, without you having to select tools manually.
The simplest way to give Claude access to a comprehensive toolkit is through a single MCP connection to ToolRouter. One connection unlocks the entire catalog. Here is what becomes possible.
Image Generation
Claude cannot generate images on its own. With an image generation tool, Claude can create photos, illustrations, product mockups, social media graphics, logos, and any other visual content directly in conversation. Describe what you want, and Claude generates it. You can iterate — "make the background darker," "add a person on the left," "change the style to watercolor" — and Claude will refine the image.
This covers use cases from blog post illustrations to product photography to ad creative, all without leaving the conversation.
Video Generation
Through a video generation tool, Claude can create short-form video content. This includes product demos, social media clips, UGC-style content, animated explainers, and promotional videos. Claude handles the scripting and generation, and you get a downloadable video file.
Video generation is particularly valuable for marketing teams that need a high volume of creative assets without the time and cost of traditional video production.
SEO Analysis and Optimization
An SEO tool gives Claude the ability to audit websites, analyze keywords, evaluate meta tags, check page structure, and provide actionable optimization recommendations. Claude can crawl your pages, compare them against competitors, and produce detailed reports on what to fix and why.
This extends to GEO (Generative Engine Optimization) — understanding how your content performs when AI assistants cite search results. As AI-powered search grows, GEO is becoming as important as traditional SEO.
Deep Research
With a deep research tool, Claude can conduct multi-source investigations that synthesize information from dozens of sources into comprehensive briefings. This goes far beyond a simple web search — Claude cross-references claims, identifies contradictions, weighs source credibility, and produces structured research reports with proper citations.
Use cases include market research, competitive intelligence, due diligence, topic deep-dives for content creation, and academic literature reviews.
Lead Finding and Contact Data
A lead finding tool gives Claude access to business and contact databases. Claude can build targeted prospect lists based on criteria like industry, company size, location, job title, and technology stack. This is invaluable for sales teams, recruiters, and business development professionals who need qualified leads without manual research.
Competitor Research
Through a competitor research tool, Claude can monitor and analyze competing businesses systematically. This includes tracking pricing changes, new product launches, content strategies, technology choices, market positioning, and customer sentiment. Claude produces structured competitive intelligence reports that would take a human analyst hours to compile.
Product Photography
A product studio tool lets Claude create professional product photography from a single image. Upload a photo of your product and Claude can place it in different settings, adjust lighting, create lifestyle shots, and generate e-commerce-ready images. This is a fraction of the cost and time of a traditional product photo shoot.
Web Search (Enhanced)
While Claude has basic web search built in, a dedicated web search tool through ToolRouter provides more comprehensive results, better source handling, and tighter integration with other tools. Claude can chain a web search into a deep research report, or search for information and then generate a visual based on what it finds.
Claude Desktop vs Claude Code vs Claude API
Claude is available through three main interfaces, each designed for different use cases. Here is how they compare.
| Feature | Claude Desktop | Claude Code | Claude API |
|---|---|---|---|
| Best for | General productivity, business users | Developers, technical workflows | Building apps and automations |
| Interface | Web app and desktop app | Terminal / CLI | Programmatic (REST API) |
| MCP support | Yes (built-in) | Yes (built-in, best support) | Yes (via Messages API) |
| Tool use | Automatic via connected MCP servers | Automatic + file system access | Programmatic tool definitions |
| Artifacts | Yes | No (outputs to files directly) | No |
| Projects | Yes | Yes (via CLAUDE.md files) | No (context managed in code) |
| Cowork mode | Yes | No (uses background agents) | No |
| Code execution | Sandboxed in browser | Full local environment access | Via tool use |
| File access | Upload only | Full local file system | Via tool use |
| Setup | claude.ai or desktop app | npm install -g @anthropic-ai/claude-code | API key from console.anthropic.com |
| MCP setup | Settings > MCP or one-click connectors | claude mcp add command | Defined in API request |
| Pricing | Subscription plans (see below) | Included with Pro/Max plans | Pay per token |
Claude Desktop is the right choice for most people. It is the most polished experience, supports all of Claude's consumer features (artifacts, projects, cowork mode, memory), and has straightforward MCP tool support.
Claude Code is built for developers. It runs in your terminal, has full access to your local file system, and can read, write, and execute code directly on your machine. MCP support in Claude Code is the most robust of any client — it runs tools seamlessly alongside code operations.
The Claude API is for building applications on top of Claude. If you are integrating Claude into your own product or automating workflows programmatically, the API gives you full control over conversations, tool use, and system prompts.



