Claude Opus 4.8
by NanoGPT · listed May 2026RTV
Flagship Claude model for deep reasoning, coding, and long-horizon agents
Current rates USD per 1M tokens
Input$5.00
Output$25.01
Cache read$0.50
Cache write—
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
- —
- Released
- 2026-05-28
- Last updated
- 2026-05-28
- Provider docs
- docs.nano-gpt.com
Back of the envelope
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