1,240 pages for model.

whats-new-sonnet-5-5 Claude Developer Platform · path models/sonnet-5-5/whats-new-sonnet-5-5 overview Claude Developer Platform · path models/sonnet-5/overview additional-resources Claude Developer Platform · in the page about-claude/additional-resources …ary"> Key terms and concepts for working with Claude and language models. </Card> </CardGroup> ## Resources for AI ingestion <CardGroup cols={2}> <Card title="API primer for Claude ingestion… api-credits-for-subscribers Claude Developer Platform · in the page about-claude/api-credits-for-subscribers …Use your credits efficiently Your monthly cost depends mainly on the model you choose and how often your application runs. To use fewer credits: * Choose a model that fits each task. To learn how, s… glossary Claude Developer Platform · in the page about-claude/glossary …window The "context window" refers to the amount of text a language model can look back on and reference when generating new text. This is different from the large corpus of data the language model… pricing Claude Developer Platform · in the page about-claude/pricing …de/pricing description: Learn about Anthropic's pricing structure for models and features --- This page provides detailed pricing information for Anthropic's models and features. All prices are in US… commerce-agents Claude Developer Platform · in the page about-claude/use-case-guides/commerce-agents …eturns its URL and the host renders it without passing it through the model. ## The merchant agent The merchant agent supports the people running the store. It reaches your analytics, catalog, inven… content-moderation Claude Developer Platform · in the page about-claude/use-case-guides/content-moderation …quick decisions"> Traditional ML approaches, such as bag-of-words models or simple pattern matching, often have difficulty capturing the tone, intent, and context of the content. Although human mo… customer-support-chat Claude Developer Platform · in the page about-claude/use-case-guides/customer-support-chat …ement Claude as a customer service agent ### Choose the right Claude model The choice of model depends on the trade-offs among cost, accuracy, and response time. For customer support chat, Claude O… legal-summarization Claude Developer Platform · in the page about-claude/use-case-guides/legal-summarization …o summarize legal documents using Claude ### Select the right Claude model Model accuracy is extremely important when summarizing legal documents. Claude Opus 5.5 is an excellent choice for use case… ticket-routing Claude Developer Platform · in the page about-claude/use-case-guides/ticket-routing …l ML processes require massive labeled datasets. Claude's pre-trained model can effectively classify tickets with just a few dozen labeled examples, significantly reducing data preparation time and co… PDF Processing Claude Developer Platform · in the page agents-and-tools/agent-skills/best-practices …eviews where context determines the best approach. ### Test with all models you plan to use Skills act as additions to models, so effectiveness depends on the underlying model. Test your Skill with… claude-api-skill Claude Developer Platform · in the page agents-and-tools/agent-skills/claude-api-skill …bility design, breakpoint placement, and silent-invalidator audit * **Model migration:** Step-by-step guidance for migrating to newer Claude models (including the breaking changes and behavior shifts… enterprise Claude Developer Platform · in the page agents-and-tools/agent-skills/enterprise …uld not trigger, and ambiguous edge cases. Require testing across the models your organization uses (Haiku, Sonnet, Opus), because Skill effectiveness varies by model. For detailed guidance on buildi… PDF Processing Claude Developer Platform · in the page agents-and-tools/agent-skills/overview …les Claude accesses these files only when referenced. The filesystem model means each content type has different strengths: instructions for flexible guidance, code for reliability, resources for fac… quickstart Claude Developer Platform · in the page agents-and-tools/agent-skills/quickstart …EY" \ -H "anthropic-version: 2023-06-01" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 16000, "container": { "skills": [{"type": "anthropic", "skill_i… mcp-connector Claude Developer Platform · in the page agents-and-tools/mcp-connector …laude Platform on AWS: beta Microsoft Foundry: beta --- Claude's Model Context Protocol (MCP) connector feature allows you to connect to remote MCP servers directly from the Messages API without… concepts Claude Developer Platform · in the page agents-and-tools/mcp-tunnels/concepts …deployment, the two credential-provisioning modes, and the connection model. --- <Note> MCP tunnels are in research preview. [Request access](https://claude.com/form/mcp-tunnels) to try them. </Not… overview Claude Developer Platform · in the page agents-and-tools/mcp-tunnels/overview …es to the public internet. --- MCP tunnels let you connect Claude to Model Context Protocol (MCP) servers that run inside your private network. Traffic flows over an outbound-only connection, so you… quickstart Claude Developer Platform · in the page agents-and-tools/mcp-tunnels/quickstart …t **Create new agent**, give the agent a name, and keep the prefilled model. Click **+ MCP Server**, select your tunnel, and set **Subdomain** to `echo` and **Path** to `mcp`. Then ask: > Use the… security Claude Developer Platform · in the page agents-and-tools/mcp-tunnels/security …to require OAuth as described in the [MCP authorization spec](https://modelcontextprotocol.io/specification/2025-11-25/basic/authorization). OAuth provides defense in depth on top of the tunnel's tran… remote-mcp-servers Claude Developer Platform · in the page agents-and-tools/remote-mcp-servers …more?** [Find hundreds more MCP servers on GitHub](https://github.com/modelcontextprotocol/servers). </Note> advisor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/advisor-tool …s-and-tools/tool-use/advisor-tool description: Pair a faster executor model with a higher-intelligence advisor model that provides strategic guidance mid-generation. --- The advisor tool lets a faste… bash-tool Claude Developer Platform · in the page agents-and-tools/tool-use/bash-tool …ext command. The current version of the tool is `bash_20250124`. For model support, beta headers, and the earlier version, see [Tool versions](https://platform.claude.com/docs/en/agents-and-tools/too… browser-use-sdk Claude Developer Platform · in the page agents-and-tools/tool-use/browser-use-sdk …s browser: runner = client.beta.messages.tool_runner( model="claude-opus-5-5", max_tokens=1024, tools=[browser], messages=[ {"role": "user",… browser-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/browser-use-tool …atus: ga zdr: eligibility: eligible note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-retention-requirements). su… build-a-tool-using-agent Claude Developer Platform · in the page agents-and-tools/tool-use/build-a-tool-using-agent …and the tool description. response = client.messages.create( model="claude-opus-5-5", max_tokens=1024, tools=tools, tool_choice={"type": "auto", "disable_parallel_tool_use":… code-execution-tool Claude Developer Platform · in the page agents-and-tools/tool-use/code-execution-tool …lutions. featureMetadata: status: ga zdr: not-eligible supportedModels: - claude-fable-5-1 - claude-mythos-5-1 - claude-fable-5 - claude-mythos-5 - claude-opus-5-5 - clau… computer-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/computer-use-tool …atus: ga zdr: eligibility: eligible note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-retention-requirements). su… define-tools Claude Developer Platform · in the page agents-and-tools/tool-use/define-tools …ied system prompt. The constructed prompt is designed to instruct the model to use the specified tool(s) and provide the necessary context for the tool to operate properly: ```text wrap In this envir… fine-grained-tool-streaming Claude Developer Platform · in the page agents-and-tools/tool-use/fine-grained-tool-streaming …to Claude. </Warning> ## How to use fine-grained tool streaming All models support fine-grained tool streaming on the Claude API, [Amazon Bedrock](https://platform.claude.com/docs/en/build-with-clau… handle-tool-calls Claude Developer Platform · in the page agents-and-tools/tool-use/handle-tool-calls …lock"> ```text JSON wrap { "id": "msg_01Aq9w938a90dw8q", "model": "claude-opus-5-5", "stop_reason": "tool_use", "role": "assistant", "content": [ { "type": "text"… how-tool-use-works Claude Developer Platform · in the page agents-and-tools/tool-use/how-tool-use-works …use contract Tool use is a contract between your application and the model. You specify what operations are available and what shape their inputs and outputs take; Claude determines when and how to c… memory-tool Claude Developer Platform · in the page agents-and-tools/tool-use/memory-tool …tails..." ``` The memory tool is available on all Claude 4 and later models. For the full list of Anthropic-provided tools, see the [Tool reference](https://platform.claude.com/docs/en/agents-and-too… overview Claude Developer Platform · in the page agents-and-tools/tool-use/overview …3-06-01" \ -H "content-type: application/json" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "tools": [{"type": "web_search_20260209", "name": "web_search"}],… parallel-tool-use Claude Developer Platform · in the page agents-and-tools/tool-use/parallel-tool-use …g parallel tool calls...") response = client.messages.create( model="claude-opus-5-5", max_tokens=1024, messages=messages, tools=tools ) # Check for parallel tool calls tool_uses = [blo… Process results programmatically Claude Developer Platform · in the page agents-and-tools/tool-use/programmatic-tool-calling …de call your tools from code in the code execution container, cutting model round trips and token use in multi-tool workflows. featureMetadata: status: ga zdr: not-eligible supportedModels:… server-tools Claude Developer Platform · in the page agents-and-tools/tool-use/server-tools …3-06-01" \ -H "content-type: application/json" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [ { "role": "user", "content":… strict-tool-use Claude Developer Platform · in the page agents-and-tools/tool-use/strict-tool-use …ntees Claude's tool inputs match your JSON Schema by constraining the model's token sampling to schema-valid outputs (a technique called grammar-constrained sampling). This page covers why strict mode… text-editor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/text-editor-tool …oviding hands-on assistance rather than just suggesting changes. For model support, see the [Tool reference](https://platform.claude.com/docs/en/agents-and-tools/tool-use/tool-reference). ## When to… tool-combinations Claude Developer Platform · in the page agents-and-tools/tool-use/tool-combinations …de.com/docs/en/agents-and-tools/tool-use/memory-tool) for the storage model. ## All-in-one: computer\_use The computer use tool subsumes most others by operating a full desktop. Claude receives scre… tool-reference Claude Developer Platform · in the page agents-and-tools/tool-use/tool-reference …| For model compatibility, see each tool's page. Supported models vary by tool and by tool version. To check from your code whether a mo… Log at info level Claude Developer Platform · in the page agents-and-tools/tool-use/tool-runner …n str(a + b) runner = client.beta.messages.tool_runner( model="claude-opus-5-5", max_tokens=1024, tools=[get_weather, calculate_sum], messages=[ {… tool-search-tool Claude Developer Platform · in the page agents-and-tools/tool-use/tool-search-tool …election accuracy stays high even across thousands of tools. For the models that support tool search, see [Model compatibility](https://platform.claude.com/docs/en/agents-and-tools/tool-use/tool-sear… tool-use-with-prompt-caching Claude Developer Platform · in the page agents-and-tools/tool-use/tool-use-with-prompt-caching …Deferred tools are not included in the system-prompt prefix. When the model discovers a deferred tool through [tool search](https://platform.claude.com/docs/en/agents-and-tools/tool-use/tool-search-to… troubleshooting-tool-use Claude Developer Platform · in the page agents-and-tools/tool-use/troubleshooting-tool-use …------------------- | | Parameter that doesn't exist in your schema | Model over-generation without strict mode | Add `strict: true` if your schema is in the [supported subset](https://platform.claude… web-fetch-tool Claude Developer Platform · in the page agents-and-tools/tool-use/web-fetch-tool …nse quality. Dynamic filtering is available with Claude 4.6 and later models and [Claude Mythos Preview](https://anthropic.com/glasswing). `web_fetch_20260318` also adds [response inclusion](https://p… web-search-tool Claude Developer Platform · in the page agents-and-tools/tool-use/web-search-tool …information. Dynamic filtering is available with Claude 4.6 and later models and [Claude Mythos Preview](https://anthropic.com/glasswing). Three versions of the web search tool are available: * `web… Beta Claude Developer Platform · in the page api/beta …context-1m-2025-08-07"` - `"context-management-2025-06-27"` - `"model-context-window-exceeded-2025-08-26"` - `"skills-2025-10-02"` - `"fast-mode-2026-02-01"` - `"output-300k-2026-03-24"… beta-headers Claude Developer Platform · in the page api/beta-headers …. --- Beta headers allow you to access experimental features and new model capabilities before they become part of the standard API. <Info> The [client SDK](https://platform.claude.com/docs/en/cli…