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Stealth: Claude Opus 4.8 (20% off)
anthropic·anthropic/claude-opus-4.8·GA·Closed·claude-opus series
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.
At a glance
Reference price$4.00 / $20.00 per 1M
Cache read $0.40 · Kilo Gateway
Lowest paid$4.00 / $20.00
Kilo Gateway Gateway
Context1,000,000
Output limit128,000
Capabilities
✓ Reasoning✓ Tool useStructured output✓ Temperature✓ Attachments
Modalities
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Knowledge cutoff—
Released / updated2025-08-26 / 2025-08-26
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 1 providers1 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| Kilo Gateway | Gateway | $4.00 | $20.00 | $0.40 | $5.00 | 1,000,000 | 128,000 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1Kilo Gateway$1,368.00
The cheapest paid channel is the only channel.
Benchmark
No upstream benchmark data for this model. For quality, see the Artificial Analysis intelligence score above.
Reasoning control
effort = noneeffort = loweffort = mediumeffort = higheffort = xhigheffort = max
Related models
Claude Opus 5same series$5.00 / $25.00Claude Opus 5 (Fast)same series$12.00 / $60.00Claude Opus 5 (EU)same series$5.50 / $27.50GLM-5.2cheaper alternative$1.40 / $4.40DeepSeek V4 Procheaper alternative$0.435 / $0.87DeepSeek V4 Flashcheaper alternative$0.14 / $0.28DeepSeek V4 Flash 0731cheaper alternative$0.479 / $1.44
Price historyone sample accumulated per data sync
Input listOutput listMin blended