Claude Opus 4.8
by Kilo Gateway · family claude-opus · listed May 2026RTV
Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token...
Current rates USD per 1M tokens
Input$5.00
Output$25.00
Cache read$0.50
Cache write$6.25
Against the market
On the record
- Model id
anthropic/claude-opus-4.8- Context window
- 1M tokens
- Max output
- 128K tokens
- Input modalities
- text, image, pdf
- Output modalities
- text
- Reasoning
- yes
- Tool calls
- yes
- Open weights
- no
- Knowledge cutoff
- Jan 2026
- Released
- 2026-05-28
- Last updated
- 2026-05-28
- Provider docs
- kilo.ai
Back of the envelope
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