Stealth: Claude Opus 4.8 (20% off)
Your prompts and completions may be retained and used to train or improve the provider's services. This third-party-served variant of Claude Opus 4.8 is offered at 20% lower cost than standard Claude Opus 4.8 pricing and is not served by Anthropic or Kilo Code.
Model facts
- Context window
- 1M tokens
- Maximum output
- 128K tokens
- Cheapest paid input
- $4 per 1M tokens
- Cheapest paid output
- $20 per 1M tokens
- Open weights
- no
- Providers
- 1
Capabilities and modalities
reasoning, tool calling, attachments, temperature control, text, image, pdf.
Observed price history
- 2026-08-24: $4 input / $20 output per 1M tokens
API providers
- Kilo Gateway — model id stealth/claude-opus-4.8; $4 input / $20 output per 1M tokens; provider documentation