Platform Availability / 平台可用性
Which features work on which provider platform. This table is the single source of truth in this skill - per-feature sections elsewhere point here instead of restating availability. When writing code for a third-party platform (Bedrock, Vertex, Foundry) or Claude Platform on AWS, check this table first; a feature not supported there means use the first-party Claude API surface or a different approach.
哪些功能在哪个提供商平台上可用。本表是本技能中唯一的权威来源——其他按功能展开的小节直接指向这里，而不是重复说明可用性。为第三方平台（Bedrock、Vertex、Foundry）或 Claude Platform on AWS 编写代码时，先查此表；某功能在该平台不受支持即意味着应改用第一方 Claude API 接口或其他方案。
Columns: 1P = first-party Claude API, P-AWS = Claude Platform on AWS (Anthropic-operated, same-day parity), Bedrock = Amazon Bedrock, Vertex = Google Cloud Vertex AI, Foundry = Microsoft Foundry. Yes = GA, beta = beta, No = not supported, unconfirmed = not verified either way when this was written.
各列含义：1P = 第一方 Claude API，P-AWS = Claude Platform on AWS（由 Anthropic 运营、同日对齐），Bedrock = Amazon Bedrock，Vertex = Google Cloud Vertex AI，Foundry = Microsoft Foundry。Yes = 正式发布（GA），beta = 测试版，No = 不支持，unconfirmed = 截至撰写时两种情况均未得到证实。
| Feature | 1P | P-AWS | Bedrock | Vertex | Foundry | Notes |
|---|---|---|---|---|---|---|
| Messages, streaming, tool use | Yes | Yes | Yes | Yes | Yes | Core API |
| PDF input | Yes | Yes | Yes | Yes | Yes | |
| Structured outputs / strict tool use | Yes | Yes | Yes | Yes | Yes | |
| Adaptive thinking / effort | Yes | Yes | Yes | Yes | Yes | |
| Extended thinking | Yes | Yes | Yes | Yes | Yes | |
| Prompt caching (5m, 1h) | Yes | Yes | Yes | Yes | Yes | |
| Automatic prompt caching | Yes | Yes | Yes | Yes | Yes | The legacy Bedrock integration (Opus 4.6 and earlier) rejects top-level cache_control with a 400 - explicit breakpoints only there |
| Token counting | Yes | Yes | Yes | Yes | Yes | |
| Citations | Yes | Yes | Yes | Yes | Yes | |
| Search results content blocks | Yes | Yes | Yes | Yes | Yes | |
| Fine-grained tool streaming | Yes | Yes | Yes | Yes | Yes | Bedrock: eager_input_streaming on the newer serving stack only (Opus 4.7/4.8/5, Fable 5, Sonnet 4.6/5); older deployments (Opus 4.5/4.6, Sonnet 4.0/4.5, Haiku 4.5) 400 on the field |
| Compaction | beta | beta | beta | beta | beta | |
| Context editing | beta | beta | beta | beta | beta | |
| Context windows (1M) | Yes | Yes | Yes | Yes | Yes | |
inference_geo (data residency) |
Yes | Yes | No | No | No | |
| Server-side tools | ||||||
| Web search | Yes | Yes | No | Yes | Yes | Vertex: basic web_search_20250305 only (no _20260209 dynamic filtering). Foundry Hosted on Azure: basic web_search_20250305 only |
| Web fetch | Yes | Yes | No | No | Yes | Foundry Hosted on Azure: basic web_fetch_20250910 only |
| Code execution | Yes | Yes | No | No | Yes | Foundry: Hosted on Anthropic deployments only - Hosted on Azure returns a 400 |
| Tool search | Yes | Yes | Yes | Yes | Yes | Bedrock: InvokeModel API only, not Converse |
| Advisor tool | beta | beta | No | No | No | |
| Client-implemented tools | ||||||
| Bash, text editor, memory | Yes | Yes | Yes | Yes | Yes | |
| Computer use | beta | beta | beta | beta | beta | computer_20251124 and older versions: beta on all five platforms. Claude Opus 5.5 accepts only computer_toolset_20260801 (GA, no beta header) on the Claude API and Google Cloud, and still accepts computer_20251124 on Amazon Bedrock (shared/model-migration.md -> Migrating to Claude Opus 5.5, breaking change 4). Claude Sonnet 5.5 accepts only the toolset on the Claude API and Google Cloud, but still accepts computer_20251124 on Amazon Bedrock, and rejects computer_20250124 everywhere (shared/model-migration.md -> Migrating to Claude Sonnet 5.5, breaking change 4) |
| Agentic / orchestration | ||||||
| Agent Skills (Messages API) | Yes | Yes | No | No | beta | Foundry: Hosted on Anthropic deployments only - Hosted on Azure returns a 400 |
| Programmatic tool calling | Yes | Yes | No | No | Yes | Foundry: Hosted on Anthropic deployments only - Hosted on Azure returns a 400 |
| MCP connector | beta | beta | No | No | beta | |
| Managed Agents | beta | beta | No | No | No | Foundry: No (inferred; not in Foundry docs either way) |
| Self-hosted sandboxes | beta | beta | No | No | No | P-AWS: worker authenticates with IAM/SigV4 or an AWS-Console API key + AnthropicSelfHostedEnvironmentAccess (Console environment keys don't work there); sessions on self-hosted environments cannot attach memory stores; GET /v1/environments/{id}/work list endpoint not supported, other work endpoints OK |
| API endpoints | ||||||
| Message Batches | Yes | Yes | No | No | No | |
| Files API | Yes | Yes | No | No | beta | Foundry: Hosted on Anthropic deployments only - Hosted on Azure returns a 400 |
| Models API | Yes | Yes | No | No | No | |
| Other | ||||||
| Mid-conversation system messages | Yes | Yes | Yes | Yes | No | Claude Opus 5, Claude Opus 5.5, Claude Opus 4.8, Claude Fable 5, Claude Fable 5.1, Claude Mythos 5, Claude Mythos 5.1, Claude Sonnet 5.5; not Claude Sonnet 5. Bedrock: InvokeModel passthrough, not ARN-versioned models |
| Mid-conversation tool changes | beta | beta | beta | beta | No | Same models as mid-conversation system messages; beta mid-conversation-tool-changes-2026-07-01 |
Turn-scoped (clear_at) system messages |
beta | beta | beta | beta | No | Same models as mid-conversation system messages; beta mid-conversation-system-clear-at-2026-08-21 (on Bedrock/Vertex pass the value as a beta) |
Per-message effort (system message output_config) |
beta | unconfirmed | unconfirmed | beta | unconfirmed | Claude Fable 5.1, Claude Mythos 5.1, Claude Opus 5, Claude Opus 5.5, Claude Sonnet 5.5 (thinking on only - a 400 with between_tools); beta mid-conversation-output-config-2026-07-01; on the Claude API and Google Cloud, open to any organization that sends the header (Claude Platform on AWS/Bedrock/Foundry unconfirmed; Claude Opus 5 excluded on Bedrock) |
thinking.display: "updates" |
beta | beta | beta | beta | beta | Claude Fable 5.1, Claude Mythos 5.1, Claude Fable 5, Claude Opus 5.5, Claude Sonnet 5.5 (with adaptive thinking); beta thinking-display-updates-2026-08-18 (pass the beta value per platform); without it "updates" is rejected as an unknown display value |
| Thinking block-binding controls | beta | beta | beta | beta | unconfirmed | thinking.block_binding + input_transformations; beta thinking-binding-controls-2026-08-01 (the same beta name on the Claude API, Claude Platform on AWS, Bedrock, and Vertex - Bedrock: the anthropic_beta body field, Vertex: the anthropic-beta HTTP header); Foundry unconfirmed; wherever the header is rejected, use strip-and-retry; the history-editing enforcement itself follows the account-age rule in shared/model-migration.md -> Migrating to Claude Fable 5.1 from Claude Fable 5 |
Server-side fallbacks |
beta | beta | No | No | No | "default" -> beta server-side-fallback-2026-07-01; array form -> beta server-side-fallback-2026-06-01 |
| Fast mode | beta | No | No | No | No | Research preview, beta fast-mode-2026-02-01, first-party API only (Claude Opus 5 / Opus 4.8 at $10 / $50; Claude Opus 5.5 at $8 / $40) |
| Cache diagnostics | beta | No | No | No | No | First-party API only |
| Task budgets | beta | beta | No | No | No | Beta header task-budgets-2026-03-13; 3P availability not documented - assume unsupported |
| 功能 | 1P | P-AWS | Bedrock | Vertex | Foundry | 备注 |
|---|---|---|---|---|---|---|
| 消息、流式输出、工具使用 | 是 | 是 | 是 | 是 | 是 | 核心 API |
| PDF 输入 | 是 | 是 | 是 | 是 | 是 | |
| 结构化输出 / 严格工具使用 | 是 | 是 | 是 | 是 | 是 | |
| 自适应思考 / effort | 是 | 是 | 是 | 是 | 是 | |
| 扩展思考 | 是 | 是 | 是 | 是 | 是 | |
| 提示词缓存（5 分钟、1 小时） | 是 | 是 | 是 | 是 | 是 | |
| 自动提示词缓存 | 是 | 是 | 是 | 是 | 是 | 旧版 Bedrock 集成（Opus 4.6 及更早）会以 400 拒绝顶层 cache_control——该平台只能使用显式断点 |
| Token 计数 | 是 | 是 | 是 | 是 | 是 | |
| 引用（Citations） | 是 | 是 | 是 | 是 | 是 | |
| 搜索结果内容块 | 是 | 是 | 是 | 是 | 是 | |
| 细粒度工具流式输出 | 是 | 是 | 是 | 是 | 是 | Bedrock：仅较新服务栈支持 eager_input_streaming（Opus 4.7/4.8/5、Fable 5、Sonnet 4.6/5）；较旧部署（Opus 4.5/4.6、Sonnet 4.0/4.5、Haiku 4.5）对该字段返回 400 |
| 压缩（Compaction） | beta | beta | beta | beta | beta | |
| 上下文编辑 | beta | beta | beta | beta | beta | |
| 上下文窗口（1M） | 是 | 是 | 是 | 是 | 是 | |
inference_geo（数据驻留） |
是 | 是 | 否 | 否 | 否 | |
| 服务器端工具 | ||||||
| 网页搜索 | 是 | 是 | 否 | 是 | 是 | Vertex：仅支持基础的 web_search_20250305（不支持 _20260209 动态过滤）。Foundry Hosted on Azure：仅支持基础的 web_search_20250305 |
| 网页抓取 | 是 | 是 | 否 | 否 | 是 | Foundry Hosted on Azure：仅支持基础的 web_fetch_20250910 |
| 代码执行 | 是 | 是 | 否 | 否 | 是 | Foundry：仅 Hosted on Anthropic 部署可用——Hosted on Azure 返回 400 |
| 工具搜索 | 是 | 是 | 是 | 是 | 是 | Bedrock：仅 InvokeModel API，不支持 Converse |
| Advisor 工具 | beta | beta | 否 | 否 | 否 | |
| 客户端实现的工具 | ||||||
| Bash、文本编辑器、记忆 | 是 | 是 | 是 | 是 | 是 | |
| 计算机使用 | beta | beta | beta | beta | beta | computer_20251124 及更早版本：在全部五个平台上均为 beta。Claude Opus 5.5 在 Claude API 和 Google Cloud 上只接受 computer_toolset_20260801（GA，无需 beta 头），在 Amazon Bedrock 上仍接受 computer_20251124（shared/model-migration.md -> Migrating to Claude Opus 5.5，破坏性变更 4）。Claude Sonnet 5.5 在 Claude API 和 Google Cloud 上只接受该工具集，在 Amazon Bedrock 上仍接受 computer_20251124，且在所有平台都拒绝 computer_20250124（shared/model-migration.md -> Migrating to Claude Sonnet 5.5，破坏性变更 4） |
| 智能体 / 编排 | ||||||
| Agent Skills（Messages API） | 是 | 是 | 否 | 否 | beta | Foundry：仅 Hosted on Anthropic 部署可用——Hosted on Azure 返回 400 |
| 程序化工具调用 | 是 | 是 | 否 | 否 | 是 | Foundry：仅 Hosted on Anthropic 部署可用——Hosted on Azure 返回 400 |
| MCP 连接器 | beta | beta | 否 | 否 | beta | |
| Managed Agents | beta | beta | 否 | 否 | 否 | Foundry：否（推断得出；Foundry 文档两种说法均无记载） |
| 自托管沙箱 | beta | beta | 否 | 否 | 否 | P-AWS：worker 使用 IAM/SigV4 或 AWS 控制台 API 密钥 + AnthropicSelfHostedEnvironmentAccess 进行认证（控制台环境密钥在该平台不可用）；自托管环境上的会话无法挂接记忆存储；GET /v1/environments/{id}/work 列表端点不受支持，其余 work 端点正常 |
| API 端点 | ||||||
| Message Batches | 是 | 是 | 否 | 否 | 否 | |
| Files API | 是 | 是 | 否 | 否 | beta | Foundry：仅 Hosted on Anthropic 部署可用——Hosted on Azure 返回 400 |
| Models API | 是 | 是 | 否 | 否 | 否 | |
| 其他 | ||||||
| 对话中途系统消息 | 是 | 是 | 是 | 是 | 否 | Claude Opus 5、Claude Opus 5.5、Claude Opus 4.8、Claude Fable 5、Claude Fable 5.1、Claude Mythos 5、Claude Mythos 5.1、Claude Sonnet 5.5；不支持 Claude Sonnet 5。Bedrock：以 InvokeModel 透传方式提供，不支持 ARN 版本化模型 |
| 对话中途工具变更 | beta | beta | beta | beta | 否 | 与对话中途系统消息相同的模型；beta mid-conversation-tool-changes-2026-07-01 |
轮次范围（clear_at）系统消息 |
beta | beta | beta | beta | 否 | 与对话中途系统消息相同的模型；beta mid-conversation-system-clear-at-2026-08-21（在 Bedrock/Vertex 上将该值作为 beta 传入） |
按消息 effort（系统消息 output_config） |
beta | 未确认 | 未确认 | beta | 未确认 | Claude Fable 5.1、Claude Mythos 5.1、Claude Opus 5、Claude Opus 5.5、Claude Sonnet 5.5（仅限思考开启时——between_tools 返回 400）；beta mid-conversation-output-config-2026-07-01；在 Claude API 和 Google Cloud 上，对发送该头的任何组织开放（Claude Platform on AWS/Bedrock/Foundry 未确认；Bedrock 上不含 Claude Opus 5） |
thinking.display: "updates" |
beta | beta | beta | beta | beta | Claude Fable 5.1、Claude Mythos 5.1、Claude Fable 5、Claude Opus 5.5、Claude Sonnet 5.5（需配合自适应思考）；beta thinking-display-updates-2026-08-18（按平台传入 beta 值）；若无该头，"updates" 会作为未知 display 值被拒绝 |
| 思考块绑定控制 | beta | beta | beta | beta | 未确认 | thinking.block_binding + input_transformations；beta thinking-binding-controls-2026-08-01（在 Claude API、Claude Platform on AWS、Bedrock 和 Vertex 上为同一 beta 名称——Bedrock：anthropic_beta 请求体字段，Vertex：anthropic-beta HTTP 头）；Foundry 未确认；凡该头被拒绝之处，采用剥离重试（strip-and-retry）；历史编辑强制机制本身遵循 shared/model-migration.md -> Migrating to Claude Fable 5.1 from Claude Fable 5 中的账户年龄规则 |
服务器端 fallbacks |
beta | beta | 否 | 否 | 否 | "default" 形式 -> beta server-side-fallback-2026-07-01；数组形式 -> beta server-side-fallback-2026-06-01 |
| 快速模式 | beta | 否 | 否 | 否 | 否 | 研究预览，beta fast-mode-2026-02-01，仅第一方 API（Claude Opus 5 / Opus 4.8 为 $10 / $50；Claude Opus 5.5 为 $8 / $40） |
| 缓存诊断 | beta | 否 | 否 | 否 | 否 | 仅第一方 API |
| 任务预算 | beta | beta | 否 | 否 | 否 | Beta 头 task-budgets-2026-03-13；第三方可用性未记载——应视为不支持 |
【评论】用单一表格集中维护跨平台功能矩阵、并让其他小节引用而非复述，是一种减少文档漂移（drift）的单源真相（single source of truth）写法；表中"unconfirmed"条目也被显式标注而非留空。