Claude 3.5 Sonnet logo

Claude 3.5 SonnetAnthropic's advanced AI model for coding, reasoning, and computer-use tasks with a 200K context window.

4.8 (4)
Daniel NikulshynReviewed by Daniel Nikulshyn·Updated July 2026

Overview

Claude 3.5 Sonnet is a large language model from Anthropic designed to handle complex reasoning, software engineering workflows, and long-document analysis. It offers a 200,000-token context window, making it well suited for working with extensive codebases, research papers, and multi-step problem solving. The model is notable for its computer use capability, which allows it to interpret screenshots and interact with desktop interfaces by moving the cursor, clicking, and typing. This positions it as a tool not just for chat-based assistance but for agentic automation of UI-driven tasks. Claude 3.5 Sonnet is available through Anthropic's API, the Claude web app, and major cloud platforms including Amazon Bedrock and Google Cloud Vertex AI, giving developers multiple integration paths.

Key features

  • 200K-token context window
  • Computer use for UI automation
  • Advanced code generation and debugging
  • Vision and document understanding
  • API access via Anthropic, AWS, and GCP
  • Improved multi-step reasoning

Pricing

Model
Freemium
Rating
4.8 / 5 (4)

Use cases

Develop a unique voice for an audience

Use Claude to create a unique voice for a specific audience by providing input on key questions and uploading relevant documents, if necessary.

Improve writing style

Refine your writing style with Claude's help, who can provide suggestions and recommendations based on your input and any supporting documents.

Brainstorm creative ideas

Leverage Claude's capabilities to generate creative ideas and provide interactive, visual, or checklist artifacts to help with the brainstorming process.

Explain complex topics simply

Use Claude to break down complex topics into simple, easy-to-understand explanations, accompanied by artifacts like interactive, visual, or checklist resources.

Pros & Cons

Pros

  • Strong performance on coding and reasoning benchmarks
  • Large 200K-token context window
  • Supports computer-use and agentic workflows
  • Available across multiple cloud platforms

Cons

  • Computer use is still in beta and can be unreliable
  • Usage costs can add up for long-context tasks
  • Rate limits may constrain heavy workloads

Battle record

Across 1 battle in the Pantheon.

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Last battle

Reviews

4.8

Average from 4 ratings.

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Jamal Carter

Jamal Carter

Apr 27, 2026

Does the job

Pretty happy overall. API access via Anthropic, AWS, and GCP just works and available across multiple cloud platforms. but no dealbreakers — I'd recommend it to a friend without hesitating.

Elena Rossi

Elena Rossi

Jan 27, 2026

Skeptical, then convinced

I went in skeptical — most tools in this space overpromise. It actually delivers on 200K-token context window, and large 200K-token context window caught me off guard. still, I'd recommend giving it a real trial.

AK

Aisha Khan

Aug 12, 2025

Years in this space

I've evaluated a lot of these over the years. What stands out here is improved multi-step reasoning — handled better than most — and supports computer-use and agentic workflows. Rate limits may constrain heavy workloads is my one real gripe. Worth the time if this is your use case.

Leila Hassan

Leila Hassan

Jul 30, 2025

Solid for our team

We rolled this out across the team last quarter and strong performance on coding and reasoning benchmarks. 200K-token context window fits neatly into how we already work, and computer use for UI automation removed a step we used to do by hand. Usage costs can add up for long-context tasks, which is the main caveat, but it has held up under daily use.

Q&A

How do I cancel my Claude subscription?

You can cancel anytime, and your plan stays active until the end of your current billing period. To avoid the next charge, cancel at least 24 hours before your renewal date. If you signed up on the web or the desktop app, go to Settings > Billing and click Cancel. If you subscribed through the App Store or Google Play, cancel from that app under Billing > Manage subscription, or directly in your Apple or Google Play account. Team and self-serve Enterprise: an Owner or Primary Owner cancels under Organization settings > Billing. Sales-assisted Enterprise: Reach out to your Anthropic Contact or our Sales team to discuss cancellation. Canceling doesn't delete your data. Your chats, projects, and files stay with your account, though some features aren't available on the Free plan. For Pro and Max, your account moves to the Free plan once the period ends. For step-by-step help, see how to cancel a Pro or Max plan or cancel a Team plan.

Asked by Sami Virtanen · Apr 6, 2026

How do I upgrade, downgrade, or switch between plans?

You can change your plan any time in Settings. For individual plans, go to Settings > Billing and choose Manage subscription. On Team plans, an Owner or Primary Owner manages this under Organization settings > Billing. Upgrades take effect right away, and any unused time on your current plan is credited toward the new one, so you won't pay twice for the same days. Moving from monthly to annual works the same way, with your remaining time credited to the first annual invoice. In some upgrades (for example Pro Annual to Max 5x Monthly), your remaining value on your old plan is larger than the cost of one billing period of the new plan. In this case, the excess will be stored as credit, which will automatically get used for future purchases. Downgrades take effect at the end of your current billing period, and your chats, projects, and files stay with your account whichever plan you're on.

Asked by Anya Sokolova · Mar 9, 2026

Does Claude offer refunds?

Payments are generally non-refundable, except where our Consumer Terms of Service say otherwise or where local law requires it. Customers outside of Europe can follow this process to request a refund: Log in, open Get help from the menu, start a message, and choose Claude Refund Request to check your eligibility. If you subscribed through the App Store, Apple handles the refund, so you'll request it from Apple. If you subscribed through Google Play, contact our Support team to check eligibility for an active subscription. If you're in the European Economic Area and the United Kingdom, and within your 14-day withdrawal period, you can request a refund directly in the app.

Asked by Petros Georgiou · Feb 23, 2026

Can I pay annually? Does it cost less than if I pay monthly?

Yes, annual plans are designed to cost less than monthly subscriptions. Annual subscriptions are available for Pro and Team plans. Enterprise plans are only available as annual subscriptions. When you choose to pay annually, you're billed once up front for the year. If you're already on a monthly plan, you can switch to annual in Settings > Billing, and any unused time is credited toward your first annual invoice. See the steps for Pro and Team.

Asked by Esther Adeyemi · Jan 31, 2026

How much does the Claude Enterprise plan cost?

The Claude Enterprise plan (https://claude.com/solutions/enterprise) is built for large businesses operating at scale. Pricing is $20 per seat per month plus usage billed at API rates, so cost scales with the models and tasks your team runs. Enterprise is billed annually and includes everything in Team plus advanced security and admin controls, including SCIM, audit logs, custom data retention, and role-based access. You can get started self-serve or contact sales (https://claude.com/contact-sales) for a tailored quote.

Asked by Winifred Adeyemi · Jan 28, 2026

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