How big is Claude's context window?

It varies by plan, but Claude supports very large context windows well beyond a typical chatbot, suited to long documents and codebases.

Does Claude have an API?

Yes, Anthropic offers a pay-as-you-go API for developers.

Can Claude read files and images?

Yes, you can upload documents, spreadsheets, and images directly into a conversation.

Is Claude good for coding?

Yes, it's widely used for code generation, review, and debugging, including through the Artifacts panel.

ChatbotsWritingCodingFree PlanAPI AccessClaude Sonnet 5 Powered

Claude

Anthropic's assistant, known for long-context reasoning and careful writing

Claude leads on long-context reasoning, code quality, and careful, low-hallucination writing, making it our top overall pick.

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Overall score

9.5

out of 10

Price

$20/mo · Free tier available

Free plan

Yes

API access

Yes

Languages

40+ languages

Limits

Free tier: limited messages per day, resets every few hours; Pro: substantially higher caps.

Capabilities95%

Claude stands out on tasks that need to track a lot of context at once — long documents, big codebases, multi-turn projects — without losing the thread.

Quality of Output96%

Responses read as more careful and less generic than most competitors, especially for editorial writing and code review.

Ease of Use94%

Projects and Artifacts make it easy to keep long-running work organized, though the feature set takes a little longer to learn than a plain chat box.

Pros

✓Excellent at nuanced, long-form writing

✓Very large context window for big documents

✓Strong code generation and review

✓Careful, low-hallucination responses

Cons

–Free tier limits are tighter than some competitors

–No native voice mode

–Smaller plugin ecosystem than ChatGPT

What’s included

Claude Sonnet 5 reasoning

Projects with persistent context

Artifacts for code/documents

File and image understanding

API access

Extended context window

Pricing

Free tier covers light use; Pro at $20/mo removes most day-to-day limits and unlocks larger context windows.

Limitations

Free-tier caps can feel tight during a heavy work session, and there's no built-in voice mode yet.

How to start using Claude

1
Create an account
Sign up at claude.ai with an email or Google account.
2
Choose a plan
Start free, or upgrade to Pro for higher limits and access to larger context windows.
3
Start a Project
Group related chats into a Project so Claude keeps shared context across the whole task.
4
Upload files
Attach documents, code, or images directly into the conversation for Claude to reference.
5
Use Artifacts
For code or long documents, open them in the Artifacts panel to edit and iterate side-by-side.

Reviewed by

Owen Park · AI Research Editor

Frequently asked questions

Yes, a free tier is available with daily message limits. Pro ($20/mo) raises those limits significantly.