By Anthropic
Claude Sonnet 5
A Claude model suited to coding and multi-step work, with web search included in the price
Price per message
2.5 PMCper message(KRW 100)
Shown as x2.5 in the chat.
With previous-conversation memory off: 2 PMC (KRW 80)
Anything extra, such as input beyond the included length, attachments or paid web search, is added up and shown on the send button before you send.
1 PMC is based on KRW 40, and a payment fee is added when you buy PMC (for example, 100 PMC costs KRW 4,476).
Features
- Shows a reasoning summary by default
- Web search included
- Photo input
- PDF and document input
Try it
Start from an example
- Write a JavaScript function that returns the number of days between two dates
- Draft an outline for a product launch plan
- Make a table of things to compare before buying a laptop
Nothing is sent when you click. You review the message in the chat and are charged only when you send it yourself. You can look around without signing in; you sign in when you send.
Sign up and verify your email to get 7.5 bonus PMC, enough for 3 messages with this model at its base price (bonus valid for 90 days).
Good for
- Writing and fixing code, and tracking down errors
- Structured long writing such as reports and proposals
- Looking things up, then comparing and organizing them (web search included)
Compare with other Anthropic models
Prices are the base price per message (memory on, no attachments or search).
| Model | Per message | Reasoning summary | Web search |
|---|---|---|---|
| Claude Sonnet 4.5 | 1.5 PMC | No | +1 PMC |
| Claude Sonnet 4.6 | 1.75 PMC | No | +1 PMC |
| Claude Sonnet 5 (This model) | 2.5 PMC | Shown | Included |
| Claude Sonnet 5.5 | 2.5 PMC | Shown | Included |
| Claude Opus 4.5 | 3 PMC | No | +1 PMC |
| Claude Opus 4.6 | 3 PMC | No | +1 PMC |
FAQ
- How much does one message cost?
- The base price is 2.5 PMC (KRW 100) per message, shown as x2.5 in the chat. With previous-conversation memory turned off, it is 2 PMC (KRW 80). Anything extra, such as input beyond the included length, attachments or paid web search, is added up and shown on the send button before you send.
- Do I need a monthly subscription?
- No. There is no monthly subscription: you top up PMC and only what you use is deducted each time you send. 1 PMC is based on KRW 40, and a payment fee is added when you buy PMC (for example, 100 PMC costs KRW 4,476).
- Can it search the web?
- Yes. Web search is built in, with no separate charge for searching.
- Can I upload photos or files?
- Yes. You can send photos as well as PDFs and document files. If a file costs extra, the amount is shown on the send button before you send.
- Can I see a reasoning summary?
- Yes. A short summary of what it worked through before answering is shown by default, at no extra charge.
- Do I need to turn web search on?
- No. This model looks at web search results when it needs them, and the cost of searching is already part of the price per message.