Claude Platform Docs

Although Claude Sonnet 4.6 is still available, you should consider migrating to Claude Sonnet 5.5.

See Claude Sonnet 5.5

模型與定價舊版模型

Claude Sonnet 4.6Legacy

Migrate to Claude Sonnet 5.5

Context window: 1Mtokens
Max output: 128Ktokens
Input pricing: $3/ MTok
Output pricing: $15/ MTok

與目前模型陣容的比較

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 5.5	1M	128K	$4 / $20	Adaptive (always on)	`medium`	Jun 2026
Claude Sonnet 5.5	1M	128K	$2 / $10	Adaptive	`high`	Jun 2026
Claude Sonnet 4.6This modelLegacy	1M	128K	$3 / $15	Adaptive (extended deprecated)	`high`	Aug 2025
Claude Haiku 5.5	1M	128K	From $0.10 / $0.50	Adaptive	`medium`	Jun 2026

規格

Model IDs

Claude API
Amazon Bedrock (InvokeModel)
Google Cloud
Microsoft Foundry
Claude Platform on AWS

Pricing

Input: $3 / MTok
Output: $15 / MTok
5m cache write: $3.75 / MTok
1h cache write: $6 / MTok
Cache read: $0.30 / MTok
Batch API: 50% discount on input and output

Full price list

Capabilities

Context window: 1M tokens
Max output: 128K tokens
Max output (Batch API, beta): 300K tokens
Thinking: Adaptive (extended deprecated)
Default effort: high
Input → output: Text and images → text
Reliable knowledge cutoff: Aug 2025
Training data cutoff: Jan 2026

Availability

Status: Active (legacy)
Released: February 17, 2026
Retirement: Not sooner than February 17, 2027
Platforms: Claude APIAmazon Bedrock (InvokeModel)Google Cloud Microsoft Foundry Claude Platform on AWS

資源

遷移至 Claude Sonnet 5.5

從 Claude Sonnet 4.6 遷移至 Claude Sonnet 5.5 時會有哪些變更。

Claude Sonnet 5.5

目前的 Sonnet 模型：概覽、規格與資源。

參考資料

Claude Sonnet 4.6 在 claude.ai 與 Claude 應用程式上使用的「system prompt」（系統提示）。

Claude Sonnet 4.6 的安全評估與部署決策。

完整價格表，包含批次折扣與「prompt caching」（提示快取）費率。

模型 ID 與版本管理

模型 ID、別名與固定快照的運作方式。

每個 Claude 模型的生命週期狀態與退役承諾。