Latest · Claude Opus 4.7 · May 2026

Download Claude AI
every model, every platform.

A complete download hub for Claude — from the web and desktop apps to the iOS, Android, and CLI tools. Plus install guides for every model in the Claude family, current and legacy.

↓ Get Claude Free Browse All Models
4
Current Models
10+
Legacy Versions
6
Platforms
Free
Starter Plan
⌨ Platform Downloads

Get Claude on any device.

One free account works across every surface — your chats, projects, and uploaded files sync automatically the moment you sign in.

🌐
Web App
Any modern browser · 0 MB
Open claude.ai →
macOS
Universal · macOS 13+ · 82 MB
Download .dmg →
⊞
Windows
x64 / arm64 · Win 10+ · 94 MB
Download .exe →
🐧
Linux
AppImage · deb · rpm · 88 MB
Download Linux →
🍎
iPhone & iPad
iOS 16+ · 142 MB · 4.8★
App Store →
🤖
Android
Android 9+ · 68 MB · 4.7★
Google Play →
$_
Claude Code
CLI · Node 18+ · npm
Install via npm →
⌥
Chrome Extension
Browse with Claude · Beta
Add to Chrome →
✦ Current Models

The Claude 4.x family.

Four models in active production today. Each is available in Claude.ai (web, desktop, mobile), through the Anthropic API, and via Claude Code. Pick the one that fits your task — or switch on the fly.

Best balance · Recommended default

Claude Sonnet 4.6

Most Popular

The right balance of intelligence and speed for the vast majority of tasks — coding, research, vision, agentic workflows, document analysis. If you don't know which model to start with, start here.

Family
Claude 4.6
Best For
Most tasks
Speed
Fast
API String
claude-sonnet-4-6
Install & access guide
In Claude.ai
Default model on the free tier. Selectable on every paid plan. No setup required — just sign in and start a chat.
API call
model="claude-sonnet-4-6"
Claude Code
claude --model claude-sonnet-4-6
Plans
Free (limited) · Pro · Max · Team · Enterprise · API
Previous flagship

Claude Opus 4.6

Active

The previous-generation flagship. Still excellent for deep strategic reasoning, research synthesis at scale, and agent orchestration. A solid choice if you've already validated workflows on this version.

Family
Claude 4.6
Best For
Complex tasks
Speed
Thoughtful
API String
claude-opus-4-6
Install & access guide
In Claude.ai
Selectable from the model dropdown on Pro, Max, Team, and Enterprise plans.
API call
model="claude-opus-4-6"
Claude Code
claude --model claude-opus-4-6
Plans
Pro · Max · Team · Enterprise · API
Fastest · Most efficient

Claude Haiku 4.5

Active

The lightweight workhorse. Built for high-volume, latency-sensitive tasks — chatbots, content moderation, summarization pipelines, classification, autocompletion. Ultra-fast responses at a fraction of the cost.

Family
Claude 4.5
Best For
High volume
Speed
Ultra fast
API String
claude-haiku-4-5
Install & access guide
In Claude.ai
Selectable from the model dropdown on most plans. Useful when you want quick replies and don't need the heavier reasoning of Sonnet or Opus.
API call
model="claude-haiku-4-5-20251001"
Claude Code
claude --model claude-haiku-4-5
Plans
Pro · Max · Team · Enterprise · API (lowest cost tier)
📜 Legacy Models

Every Claude version, ever shipped.

A full historical reference of the Claude family from Claude 1 onward. Some legacy models remain available via API for backwards compatibility — others have been deprecated and retired.

Model Generation Released API String Status
Claude Opus 4.7 Claude 4.7 May 2026 claude-opus-4-7 Active
Claude Opus 4.6 Claude 4.6 2026 claude-opus-4-6 Active
Claude Sonnet 4.6 Claude 4.6 2026 claude-sonnet-4-6 Active
Claude Haiku 4.5 Claude 4.5 Oct 2025 claude-haiku-4-5-20251001 Active
Claude Sonnet 3.7 Claude 3.7 Feb 2025 claude-3-7-sonnet-20250219 Legacy
Claude Sonnet 3.5 (v2) Claude 3.5 Oct 2024 claude-3-5-sonnet-20241022 Legacy
Claude Haiku 3.5 Claude 3.5 Oct 2024 claude-3-5-haiku-20241022 Legacy
Claude Sonnet 3.5 Claude 3.5 Jun 2024 claude-3-5-sonnet-20240620 Legacy
Claude Opus 3 Claude 3 Mar 2024 claude-3-opus-20240229 Legacy
Claude Sonnet 3 Claude 3 Mar 2024 claude-3-sonnet-20240229 Deprecated
Claude Haiku 3 Claude 3 Mar 2024 claude-3-haiku-20240307 Legacy
Claude 2.1 Claude 2 Nov 2023 claude-2.1 Deprecated
Claude 2 Claude 2 Jul 2023 claude-2.0 Deprecated
Claude 1 Claude 1 Mar 2023 claude-1 Deprecated

Calling a legacy model: Replace the model string in any code sample below — for example, model="claude-3-5-sonnet-20241022". Deprecated models may stop responding at any time; check the official deprecation timeline before relying on them in production.

$_ Claude Code CLI

Install Claude in your terminal.

Claude Code is an agentic CLI that reads, writes, and runs code inside your repo. Works on macOS, Linux, and Windows. Requires Node.js 18 or later.

install & first run 
# 1 · Install globally via npm
$ npm install -g @anthropic-ai/claude-code

# 2 · Authenticate (browser flow)
$ claude login
✓ Logged in as you@example.com

# 3 · Open inside any repo
$ cd ~/projects/my-app
$ claude

# Or run a one-shot task
$ claude "add tests for utils/parse.ts"
choose a specific model 
# Default — Sonnet 4.6 (recommended)
$ claude

# Use the flagship for hard tasks
$ claude --model claude-opus-4-7

# Use Haiku for speed
$ claude --model claude-haiku-4-5

# Pin a legacy model
$ claude --model claude-3-5-sonnet-20241022

# Verify your install
$ claude --version
🧩 Official SDKs

Install the API SDKs.

First-party libraries for Python and TypeScript. Both support streaming, tool use, vision, the batch endpoint, and every current and legacy model.

python · pip install anthropic 
# Install the SDK
$ pip install anthropic

# quickstart.py
import anthropic

client = anthropic.Anthropic(
    api_key="your-api-key"
)

message = client.messages.create(
    model="claude-opus-4-7",
    max_tokens=1024,
    messages=[
        {"role": "user",
         "content": "Hello, Claude!"}
    ]
)

print(message.content[0].text)
typescript · npm install @anthropic-ai/sdk 
// Install the SDK
$ npm install @anthropic-ai/sdk

// quickstart.ts
import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic();

const stream = client.messages.stream({
  model: "claude-sonnet-4-6",
  max_tokens: 1024,
  messages: [{
    role: "user",
    content: "Write a poem"
  }]
});

for await (const chunk of stream) {
  process.stdout.write(chunk);
}

Need an API key? Sign up at console.anthropic.com — new accounts include free credits to get started. Full reference at docs.claude.com.

🚀 General Install Guide

From zero to first chat in four steps.

Whichever platform or model you pick, the flow is the same. No credit card required for the free tier.

01

Pick your platform

Web, desktop installer, mobile store, CLI via npm, or SDK via pip. Pick the surface that matches how you work.

02

Install & sign in

Run the installer or package command. Sign in with Google, Apple, or email. The free tier unlocks instantly.

03

Choose a model

Sonnet 4.6 is the recommended default. Use Opus 4.7 for hard problems, Haiku 4.5 for speed and high volume.

04

Start your first task

Type a question, drop in a file, or hand Claude a repo. That's it — your account works on every device automatically.

Every model.
Every platform. One account.

Sign in once and your chats, projects, and uploaded files follow you from your laptop to your phone to your terminal — automatically.

Get Claude Free →
❓ Common Questions

Download & install FAQ.

Quick answers to the questions we hear most often from people setting up Claude for the first time.

What's the difference between Opus, Sonnet, and Haiku?

They're three intelligence-and-speed tiers in the same family. Opus is the most capable and best for hard reasoning; Sonnet is the balanced default that handles most tasks well; Haiku is the fastest and cheapest, ideal for high-volume or latency-sensitive workloads. Inside Claude.ai you can swap between them mid-conversation from the model dropdown.

Which model should I use?

Start with Sonnet 4.6 — it's the right choice for the vast majority of tasks. Switch to Opus 4.7 when you hit something Sonnet struggles with (deep strategy, complex multi-file refactors, hard analysis). Switch to Haiku 4.5 when you need quick, cheap responses at scale.

Can I still use older Claude models?

Many legacy models (Claude 3.7 Sonnet, Claude 3.5 Sonnet, Claude 3 Opus, etc.) remain available via the API for backwards compatibility — just pass the older model string. Some very old versions (Claude 1, Claude 2) have been deprecated and may no longer respond. Always check the official deprecation timeline before relying on a legacy model in production.

Is downloading Claude really free?

Yes. The desktop, mobile, and CLI apps are all free to download and come with a free Claude account. The free tier lets you use Sonnet 4.6 with daily message limits and no credit card. Pro ($20/mo) and Max ($100/mo) plans are optional upgrades that unlock Opus, higher limits, and additional features.

Do I need an API key to use Claude?

Only if you're calling Claude programmatically through the SDKs or the Claude Code CLI's API mode. For the web, desktop, and mobile apps, you just sign in with a Claude account — no API key required.

How do I switch models in Claude Code?

Pass the --model flag with any current or legacy model string. For example: claude --model claude-opus-4-7. To make it the default, set the model in your Claude Code config file.

Will my chats sync across devices?

Yes. As long as you sign in with the same account on each device, your conversation history, Projects, and uploaded files appear everywhere automatically. Sync usually happens within seconds over a normal connection.

What are the system requirements?

Desktop: macOS 13+, Windows 10 (1909+), or a modern Linux distro, with 4 GB RAM and ~250 MB disk. Mobile: iOS 16+ or Android 9+. Claude Code: Node.js 18+. The web app works in any modern browser with no install at all.

Is the desktop app safe to install?

The official installers are signed by Anthropic — your operating system will verify the signature before installation. Always download from claude.ai or the official app stores. Avoid third-party mirrors, which may bundle modified or malicious builds.

Can I use Claude offline?

Claude requires an internet connection to generate responses, since the models run in the cloud. The desktop and mobile apps do let you draft messages offline — they queue locally and send the moment you reconnect.

How do I uninstall Claude?

Standard for your platform: drag to Trash on macOS, use Add/Remove Programs on Windows, your package manager on Linux, or long-press to uninstall on iOS/Android. The CLI uninstalls with npm uninstall -g @anthropic-ai/claude-code.