Claude Opus 5
Inspect the documented capabilities, access conditions and sources for your task.
Initial research: 2026-09-21. Check current terms before choosing.
Updated
The facts
- Version
- 5
- Price
- $5 input / $25 output per million tokens. API usage. Tokens are pieces of text sent to or generated by the model. This is not a chat subscription.
- API
✓Supported - Open weights
✕Not supported - Commercial use
- yes
- Long context
✓Supported 1M tokens; 128K max output (up to 300K on the Batch API with the output-300k-2026-03-24 beta header)
Source for Long context (opens in a new tab)- Tool use
✓Supported All current Claude models support tool use
Source for Tool use (opens in a new tab)- Vision input
✓Supported Text and image input
Source for Vision input (opens in a new tab)- Extended thinking
✓Supported Adaptive thinking, default effort 'high'
Source for Extended thinking (opens in a new tab)
From the publisher
Automatic source checks. These do not change the verification date of the facts above.
Sources
Beyond feature support
Quality evidence.
How well a model performs depends on the task, version, and settings.
We have not published a reviewed quality evaluation for these versions yet. Feature support and price do not establish output quality.
Try the same small task with each option. Check accuracy, consistency, and how much editing you need to get a usable result.