Claude Opus 4
Anthropic
- Context window
- 200K 200,000 tokens
- Max output
- 32K 32,000 tokens
- Input / Output
- image, pdf, text → text
API pricing
USD / 1M tokens
| Input | Output | Cached input |
|---|---|---|
|
|
|
Input / output price · USD / 1M tokens
Timeline
Related signals: Claude Opus 5.5
- · Evidence links · Anthropic · official articles
- · Evidence links · Claude Code · changelog
Specifications
Claude Opus 4 is a model from Anthropic, first recorded on 21 Sep 2026; its release date is not established. The context window is 200,000 tokens. The maximum output is 32,000 tokens. Pricing is $15.00 per million input tokens and $75.00 per million output tokens.
- Context window
- 200,000
- Max output
- 32,000
- Input
- image · pdf · text
- Output
- text
- Input · USD / 1M tokens
- $15.00
- Output · USD / 1M tokens
- $75.00
- Cached input · USD / 1M tokens
- $1.50
Questions
What is the context window of Claude Opus 4?
The context window is 200,000 tokens. The maximum output is 32,000 tokens.
How much does Claude Opus 4 cost?
Pricing is $15.00 per million input tokens and $75.00 per million output tokens. Cached input is $1.50 per million.
When was Claude Opus 4 released?
Its release date is not established. Signal Forge first recorded it on 21 Sep 2026.