233 pages for claude-opus-5.

Retrieve Message Batch results Claude Developer Platform · in the page api/messages/batches/results …coding, scientific discovery, and enterprise workflows - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-myt… Count tokens in a Message Claude Developer Platform · in the page api/messages/count_tokens …across coding, scientific discovery, and enterprise workflows - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-mythos-5-1"` O… Create a Message Claude Developer Platform · in the page api/messages/create …across coding, scientific discovery, and enterprise workflows - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-mythos-5-1"` O… Before Claude Developer Platform · in the page api/migration-2026-10-21 …ntent-type: application/json" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [{"role": "user", "content": "Hello, Claude"}]… Models Claude Developer Platform · in the page api/models …Y" ``` #### Response (200) ```json { "data": [ { "id": "claude-opus-5-5", "capabilities": { "batch": { "supported": true }, "citations": {… List Models Claude Developer Platform · in the page api/models/list …EY" ``` ### Response (200) ```json { "data": [ { "id": "claude-opus-5-5", "capabilities": { "batch": { "supported": true }, "citations": {… Get a Model Claude Developer Platform · in the page api/models/retrieve …earer $ANTHROPIC_API_KEY" ``` ### Response (200) ```json { "id": "claude-opus-5-5", "capabilities": { "batch": { "supported": true }, "citations": { "supported": true… Message Batches API Claude Developer Platform · in the page build-with-claude/batch-processing …_id": "my-first-request", "params": { "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [ {"role": "user", "content": "Hello, worl… cache-diagnostics Claude Developer Platform · in the page build-with-claude/cache-diagnostics …\ -H "content-type: application/json" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "cache_control": {"type": "ephemeral"}, "system": "You are an AI assistant… citations Claude Developer Platform · in the page build-with-claude/citations …\ -H "anthropic-version: 2023-06-01" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [ { "role": "user", "content": [… claude-in-amazon-bedrock Claude Developer Platform · in the page build-with-claude/claude-in-amazon-bedrock …hropic-version: 2023-06-01" \ -d '{ "model": "anthropic.claude-opus-5-5", "max_tokens": 1024, "messages": [ {"role": "user", "content": "Hello, Claude"}… claude-in-microsoft-foundry Claude Developer Platform · in the page build-with-claude/claude-in-microsoft-foundry …model catalog. 2. Search for and select a Claude model (for example, claude-opus-5-5). Each model appears once in the catalog regardless of how many hosting options it supports. 3. On the model card… anthropic-managed Claude Developer Platform · in the page build-with-claude/claude-models-on-google-cloud/anthropic-managed …\ -H "anthropic-version: 2023-06-01" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [ {"role": "user", "content": "Hello, Claude"} ] }… google-managed Claude Developer Platform · in the page build-with-claude/claude-models-on-google-cloud/google-managed …1/projects/MY_PROJECT_ID/locations/global/publishers/anthropic/models/claude-opus-5-5:rawPredict \ -H "Authorization: Bearer $(gcloud auth print-access-token)" \ -H "Content-Type: application/… claude-platform-on-aws Claude Developer Platform · in the page build-with-claude/claude-platform-on-aws …| `claude-opus-5-5` | | Claude Opus 5 | `cl… sent_count = len(messages sent in the compaction request) Claude Developer Platform · in the page build-with-claude/compaction …-5-1`, `claude-fable-5`, `claude-mythos-5`, `claude-mythos-preview`, `claude-opus-5`, `claude-opus-4-8`, `claude-opus-4-7`, `claude-opus-4-6`, `claude-sonnet-5`, `claude-sonnet-4-6` - Platforms: Claud… compaction-background Claude Developer Platform · in the page build-with-claude/compaction-background …laude-fable-5 - claude-mythos-5 - claude-mythos-preview - claude-opus-5-5 - claude-opus-5 - claude-opus-4-8 - claude-opus-4-7 - claude-opus-4-6 - claude-sonnet-5-5… compaction-keep-recent-turns Claude Developer Platform · in the page build-with-claude/compaction-keep-recent-turns …laude-fable-5 - claude-mythos-5 - claude-mythos-preview - claude-opus-5-5 - claude-opus-5 - claude-opus-4-8 - claude-opus-4-7 - claude-opus-4-6 - claude-sonnet-5-5… compaction-on-demand Claude Developer Platform · in the page build-with-claude/compaction-on-demand …laude-fable-5 - claude-mythos-5 - claude-mythos-preview - claude-opus-5-5 - claude-opus-5 - claude-opus-4-8 - claude-opus-4-7 - claude-opus-4-6 - claude-sonnet-5-5… compaction-thinking-blocks Claude Developer Platform · in the page build-with-claude/compaction-thinking-blocks …laude-fable-5 - claude-mythos-5 - claude-mythos-preview - claude-opus-5-5 - claude-opus-5 - claude-opus-4-8 - claude-opus-4-7 - claude-opus-4-6 - claude-sonnet-5-5… compaction-threshold Claude Developer Platform · in the page build-with-claude/compaction-threshold …laude-fable-5 - claude-mythos-5 - claude-mythos-preview - claude-opus-5-5 - claude-opus-5 - claude-opus-4-8 - claude-opus-4-7 - claude-opus-4-6 - claude-sonnet-5-5… context-editing Claude Developer Platform · in the page build-with-claude/context-editing …opic-beta: context-management-2025-06-27" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 4096, "messages": [ { "role": "user", "content": "Search f… effort Claude Developer Platform · in the page build-with-claude/effort …laude-fable-5 - claude-mythos-5 - claude-mythos-preview - claude-opus-5-5 - claude-opus-5 - claude-opus-4-8 - claude-opus-4-7 - claude-opus-4-6 - claude-opus-4-5-202511… fallback-credit Claude Developer Platform · in the page build-with-claude/fallback-credit ….5, those are Claude Opus 4.8 (`claude-opus-4-8`) and Claude Opus 5 (`claude-opus-5`). For Claude Opus 5, it is Claude Opus 4.8. For Claude Sonnet 5.5, it is Claude Sonnet 5 (`claude-sonnet-5`). <Acc… fast-mode Claude Developer Platform · in the page build-with-claude/fast-mode …model-specific-data-retention-requirements). supportedModels: - claude-opus-5-5 - claude-opus-5 - claude-opus-4-8 supportedPlatforms: Claude API: availability: ga note:… files Claude Developer Platform · in the page build-with-claude/files …\ -H "content-type: application/json" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [ { "role": "user", "content": [… handling-stop-reasons Claude Developer Platform · in the page build-with-claude/handling-stop-reasons …\ -H "content-type: application/json" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [{"role": "user", "content": "Hello!"}] }' ``` ```bash CLI… mid-conversation-effort-example Claude Developer Platform · in the page build-with-claude/mid-conversation-effort-example …ing import anthropic client = anthropic.Anthropic() MODEL = "claude-opus-5-5" EFFORT = "xhigh" SYSTEM_PROMPT = ( "You are a helpful general-purpose agent. Answer the user's request… mid-conversation-system-messages Claude Developer Platform · in the page build-with-claude/mid-conversation-system-messages …"anthropic-beta: inline-tools-2026-09-15" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "tools": [ { "name": "get_weather", "description": "… multilingual-support Claude Developer Platform · in the page build-with-claude/multilingual-support …\ -H "anthropic-version: 2023-06-01" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "system": "Always respond in French, regardless of the language the user writes… pdf-support Claude Developer Platform · in the page build-with-claude/pdf-support …\ -H "anthropic-version: 2023-06-01" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [{ "role": "user", "content": [{ "type": "… Request 2 caches its request content (not the response) Claude Developer Platform · in the page build-with-claude/prompt-caching …\ -H "anthropic-version: 2023-06-01" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "cache_control": {"type": "ephemeral"}, "system": "You are an AI assistant… claude-prompting-best-practices Claude Developer Platform · in the page build-with-claude/prompt-engineering/claude-prompting-best-practices …orm.claude.com/docs/en/build-with-claude/prompt-engineering/prompting-claude-opus-5-5) | Differences from Claude Opus 5: effort calibration, prompts written for thinking disabled, user-facing prog… search-results Claude Developer Platform · in the page build-with-claude/search-results …ssage with the tool response = client.messages.create( model="claude-opus-5", max_tokens=1024, tools=[knowledge_base_tool], tool_choice={"type": "tool", "name": "search_knowl… skills-guide Claude Developer Platform · in the page build-with-claude/skills-guide …\ -H "content-type: application/json" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 4096, "container": { "skills": [ { "type": "anthropic",… streaming Claude Developer Platform · in the page build-with-claude/streaming …ell:cURL"> ```bash CLI ant messages create --stream \ --model claude-opus-5-5 \ --max-tokens 1024 \ --message '{role: user, content: "Hello"}' ``` ```python Python client = anth… structured-outputs Claude Developer Platform · in the page build-with-claude/structured-outputs …laude-fable-5 - claude-mythos-5 - claude-mythos-preview - claude-opus-5-5 - claude-opus-5 - claude-opus-4-8 - claude-opus-4-7 - claude-opus-4-6 - claude-sonnet-5-5… task-budgets Claude Developer Platform · in the page build-with-claude/task-budgets …- claude-mythos-5-1 - claude-fable-5 - claude-mythos-5 - claude-opus-5-5 - claude-opus-5 - claude-opus-4-8 - claude-opus-4-7 - claude-sonnet-5-5 - claude-haiku-5-5 ---… thinking Claude Developer Platform · in the page build-with-claude/thinking …\ -H "content-type: application/json" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 16000, "thinking": { "type": "adaptive", "display": "summarized"… thinking-steering-and-cost Claude Developer Platform · in the page build-with-claude/thinking-steering-and-cost …docs/en/build-with-claude/effort#basic-usage). ```json { "model": "claude-opus-5-5", "max_tokens": 4096, "output_config": { "effort": "medium" }, "messages": [{ "role": "user", "content": "..… thinking-tool-workflows Claude Developer Platform · in the page build-with-claude/thinking-tool-workflows …H "x-api-key: $ANTHROPIC_API_KEY" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 16000, "thinking": {"type": "adaptive"}, "tools": [{ "na… thinking-troubleshooting Claude Developer Platform · in the page build-with-claude/thinking-troubleshooting …orm.claude.com/docs/en/build-with-claude/prompt-engineering/prompting-claude-opus-5#running-with-thinking-disabled). ## The response stops with `stop_reason: "max_tokens"` The response ends with `st… token-counting Claude Developer Platform · in the page build-with-claude/token-counting …\ -H "anthropic-version: 2023-06-01" \ -d '{ "model": "claude-opus-5-5", "system": "You are a scientist", "messages": [{ "role": "user", "content": "Hello, C… vision Claude Developer Platform · in the page build-with-claude/vision …"content-type: application/json" \ -d @- <<EOF { "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [ { "role": "user", "content": [ {… working-with-messages Claude Developer Platform · in the page build-with-claude/working-with-messages …\ -H "content-type: application/json" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [ {"role": "user", "content": "Hello, Claude"} ] }… API usage primer for Claude Claude Developer Platform · in the page claude_api_primer …ult for most work, including complex agentic coding: Claude Opus 5.5: claude-opus-5-5 Step up for the hardest long-running agentic and research tasks, at 2.5x Claude Opus 5.5 pricing: Claude Fable 5.1… apply Claude Developer Platform · in the page cli-sdks-libraries/cli/apply ….md"> ```markdown --- name: Summarizer model: claude-opus-5-5 tools: - type: agent_toolset_20260401 --- You are a helpful assistant that writes conci… On a remote host without a browser: Claude Developer Platform · in the page cli-sdks-libraries/cli/authentication …h CLI ant messages create \ --workspace-id wrkspc_01... \ --model claude-opus-5-5 \ --max-tokens 1024 \ --message '{role: user, content: "Hello, Claude"}' ``` ## Check authentication status… quickstart Claude Developer Platform · in the page cli-sdks-libraries/cli/quickstart …en/api/cli/messages/create): ```bash ant messages create \ --model claude-opus-5-5 \ --max-tokens 1024 \ --message '{role: user, content: "Hello, Claude"}' ``` ```text Output wrap { "model":… scripting Claude Developer Platform · in the page cli-sdks-libraries/cli/scripting …6-01" \ -H "content-type: application/json" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 256, "messages": [{"role": "user", "content": "hi"}] }' ``` Run [`ant auth status`](htt…