Current Opus-tier model (until Claude Fable 5). Arena Elo ~1490. 1M context, Adaptive Thinking, knowledge through Jan 2026. $5/$25 per MTok direct, similar on OpenRouter.
At a glance
Context
1M tokens
Input
text, image, code
Specifications
- Status
- Released
- Date
- May 29, 2026
- Lab
- Anthropic
- Origin
- US
- Type
- reasoning, multimodal
- Open weights
- —
- License
- proprietary
- Context
- 1M tokens
- Input
- text, image, code
- Output
- text, code