By Anthropic
Claude Opus 4.8
Claude Opus 4.8 for hard reasoning and long-document analysis
Price per message
3.5 PMCper message(KRW 140)
Shown as x3.5 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
- Web search +2 PMC
- Photo input
- PDF and document input
Try it
Start from an example
- Help me sort this week of tasks by priority
- Explain interest rates so a beginner can follow
- Make this sentence sound more natural: The meeting has been pushed to next week
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 2 messages with this model at its base price (bonus valid for 90 days).
Good for
- Everyday questions and writing
- Summaries and translation
- Describing what is in a photo
Good to know
- PDFs are read as extracted text only, so tables, charts and scanned images are not reflected in answers.
- Web search costs extra only when turned on. With it off, the model answers from what it knew as of its knowledge cutoff.
Specifications
- Provider
- Anthropic
- Released
- May 28, 2026
- Input included per message
- Up to 1,500 characters (extra input is charged)
- Knowledge cutoff
- January 2026
- Input types
- Text, Photos, Files
- PDF handling
- Reads extracted text only
- Web search
- Extra charge when turned on (2)
- Reasoning
- None
- Multiplier
- x3.5
Sources
- Provider model documentation (checked 2026-10-15)
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 5 | 2.5 PMC | Shown | Included |
| Claude Opus 4.5 | 3 PMC | No | +2 PMC |
| Claude Opus 4.6 | 3 PMC | No | +2 PMC |
| Claude Opus 4.7 | 3.5 PMC | No | +2 PMC |
| Claude Opus 4.8 (This model) | 3.5 PMC | No | +2 PMC |
| Claude Opus 5.5 | 4.5 PMC | Shown | +1.75 PMC |
FAQ
- How much does one message cost?
- The base price is 3.5 PMC (KRW 140) per message, shown as x3.5 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. If you turn web search on when sending, 2 PMC is added to that message.
- 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?
- This model answers directly without showing a reasoning summary.