Although Claude Opus 4.8 is still available, you should consider migrating to Claude Opus 5 for improved performance.
See Claude Opus 5模型與定價舊版模型
Claude Opus 4.8Legacy
- Context window
- 1Mtokens
- Max output
- 128Ktokens
- Input pricing
- $5/ MTok
- Output pricing
- $25/ MTok
與目前產品陣容的比較
| Model | Context | Max output | Price / MTok | Thinking | Default effort | Knowledge cutoff |
|---|---|---|---|---|---|---|
| Claude Fable 5.1 | 1M | 128K | $10 / $50 | Adaptive (always on) | high | Jun 2026 |
| Claude Opus 5 | 1M | 128K | $5 / $25 | Adaptive | high | May 2026 |
| Claude Opus 4.8This modelLegacy | 1M | 128K | $5 / $25 | Adaptive | high | Jan 2026 |
| Claude Sonnet 5 | 1M | 128K | $2 / $10 | Adaptive | high | Jan 2026 |
| Claude Haiku 4.5 | 200K | 64K | $1 / $5 | Extended | — | Feb 2025 |
規格
Model IDs
- Claude API
Pricing
- Input
- $5 / MTok
- Output
- $25 / MTok
- 5m cache write
- $6.25 / MTok
- 1h cache write
- $10 / MTok
- Cache read
- $0.50 / MTok
- Batch API
- 50% discount on input and output
- Full price list
- Pricing
Capabilities
- Context window
- 1M tokens
- Max output
- 128K tokens
- Max output (Batch API, beta)
- 300K tokens
- Thinking
- Adaptive
- Default effort
high- Input → output
- Text and images → text
- Reliable knowledge cutoff
- Jan 2026
- Training data cutoff
- Jan 2026
Availability
- Status
- Active (legacy)
- Released
- May 28, 2026
- Retirement
- Not sooner than May 28, 2027
- Platforms
- Claude APIAmazon BedrockGoogle CloudMicrosoft FoundryClaude Platform on AWS
資源
從 Claude Opus 4.8 遷移至 Claude Opus 5 時會有哪些變化。
目前的 Opus 模型：概述、規格和資源。
特定於模型的提示指南。
參考資料
Claude Opus 4.8 在 claude.ai 和 Claude 應用程式上使用的系統提示。
Claude Opus 4.8 的安全評估和部署決策。
完整價格表，包括批次折扣和提示快取費率。
模型 ID、別名和固定快照的運作方式。
每個 Claude 模型的生命週期狀態和退役承諾。
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