Claude Opus 4.8 (20% off)
anthropic/claude-opus-4.8-20-offYour 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.
Context
1M
1,000,000 tokens
Max output
128K
128,000 tokens
Input
$4.00
per 1M tokens
Output
$20.00
per 1M tokens
Providers
1
1 listings
Intelligence
—
Not yet scored
Pricing
USD per 1M tokens · listed by Kilo Gateway
| Token type | Standard |
|---|---|
| Input | $4.00 |
| Output | $20.00 |
| Reasoning | Free |
| Cache read | $0.40 |
| Cache write | $5.00 |
Lowest input price across providers: $4.00.
Capabilities
ReasoningYes
Effort: none, low, medium, high, xhigh, max
Tool callYes
Structured outputNo
TemperatureYes
AttachmentsYes
Interleaved reasoningNo
Open weightsNo
ModeratedUnknown
Input
TextImagePDF
Output
Text
Benchmarks
Published scores and Design Arena Elo
No published benchmark scores for this model yet.
Rankings
Position on each OneAtlas leaderboard
Providers · 1
1 listings
| Provider | Model ID | Context | Input limit | Output | Input $ | Output $ | Reasoning $ | Cache read | Cache write | Audio in | Audio out | Reasoning | Tools | Structured | Temp. | Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Kilo Gateway | stealth/claude-opus-4.8 | 1M | — | 128K | $4.00 | $20.00 | Free | $0.40 | $5.00 | — | — | Yes | Yes | No | Yes | Aug 26, 2025 |