164 pages for claude-opus-5-5.
Titles and paths first, then pages whose text carries it. Each row opens that page as this site last read it.
List Events
Claude Developer Platform · in the page
api/beta/sessions/events/list
…additional details and options. - `string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent.…
Stream Events
Claude Developer Platform · in the page
api/beta/sessions/events/stream
…additional details and options. - `string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent.…
List Sessions
Claude Developer Platform · in the page
api/beta/sessions/list
…for additional details and options. - `string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent.…
Get Session
Claude Developer Platform · in the page
api/beta/sessions/retrieve
…for additional details and options. - `string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent.…
Threads
Claude Developer Platform · in the page
api/beta/sessions/threads
…additional details and options. - `string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent.…
Archive Session Thread
Claude Developer Platform · in the page
api/beta/sessions/threads/archive
…additional details and options. - `string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent.…
Events
Claude Developer Platform · in the page
api/beta/sessions/threads/events
…additional details and options. - `string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent.…
List Session Thread Events
Claude Developer Platform · in the page
api/beta/sessions/threads/events/list
…additional details and options. - `string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent.…
Stream Session Thread Events
Claude Developer Platform · in the page
api/beta/sessions/threads/events/stream
…additional details and options. - `string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent.…
List Session Threads
Claude Developer Platform · in the page
api/beta/sessions/threads/list
…additional details and options. - `string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent.…
Get Session Thread
Claude Developer Platform · in the page
api/beta/sessions/threads/retrieve
…additional details and options. - `string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent.…
Update Session
Claude Developer Platform · in the page
api/beta/sessions/update
…for additional details and options. - `string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent.…
Completions
Claude Developer Platform · in the page
api/completions
…ional details and options. - `string` - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more` The model that will complete your prompt. See [models](https://docs.…
Create a Text Completion
Claude Developer Platform · in the page
api/completions/create
…ional details and options. - `string` - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more` The model that will complete your prompt. See [models](https://docs.…
errors
Claude Developer Platform · in the page
api/errors
…el does accept after `Did you mean one of`; it begins: ```text wrap 'claude-opus-5-5' does not support tool types: computer_20251124. ``` The API returns the same message for any Anthropic-defined t…
Messages
Claude Developer Platform · in the page
api/messages
…ional details and options. - `string` - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more` The model that will complete your prompt. See [models](https://docs.…
Batches
Claude Developer Platform · in the page
api/messages/batches
…tails and options. - `string` - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more` The model that will complete your prompt. See [models](https…
Create a Message Batch
Claude Developer Platform · in the page
api/messages/batches/create
…tails and options. - `string` - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more` The model that will complete your prompt. See [models](https…
Retrieve Message Batch results
Claude Developer Platform · in the page
api/messages/batches/results
…d options. - `string` - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more` The model that will complete your prompt. See [model…
Count tokens in a Message
Claude Developer Platform · in the page
api/messages/count_tokens
…ional details and options. - `string` - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more` The model that will complete your prompt. See [models](https://docs.…
Create a Message
Claude Developer Platform · in the page
api/messages/create
…ional details and options. - `string` - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more` The model that will complete your prompt. See [models](https://docs.…
Message Batches API
Claude Developer Platform · in the page
build-with-claude/batch-processing
…first-request", "params": { "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [ {"role": "user", "co…
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
…\ -H "anthropic-version: 2023-06-01" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [ {"role": "user", "content": "Hello!"} ] }' ```…
claude-on-vertex-ai
Claude Developer Platform · in the page
build-with-claude/claude-on-vertex-ai
…| `claude-opus-5-5` | | Claude Opus 5…
claude-platform-on-aws
Claude Developer Platform · in the page
build-with-claude/claude-platform-on-aws
…| | Claude Fable 5 | `claude-fable-5` | | Claude Opus 5.5 | `claude-opus-5-5` | | Claude Opus 5 | `claude-opus-5` | | Claude Opus 4.8 | `claude-opus-4-8` | | Claude Opus 4.7 |…
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 -…
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 -…
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 -…
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 -…
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 -…
context-editing
Claude Developer Platform · in the page
build-with-claude/context-editing
…context-management-2025-06-27" \ --data '{ "model": "claude-opus-5-5", "max_tokens": 4096, "messages": [ { "role": "user",…
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…
fast-mode
Claude Developer Platform · in the page
build-with-claude/fast-mode
…Fast mode is supported on the following models: * Claude Opus 5.5 (claude-opus-5-5) * Claude Opus 5 (claude-opus-5) * Claude Opus 4.8 (claude-opus-4-8) <Note> Fast mode for Claude Opus 5.5, Clau…
files
Claude Developer Platform · in the page
build-with-claude/files
…"content-type: application/json" \ -d @- <<EOF { "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!"}] }' | jq 'if .stop_reason…
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 directl…
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": [{ "…
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 progre…
search-results
Claude Developer Platform · in the page
build-with-claude/search-results
…\ -H "content-type: application/json" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [ { "role": "user", "content": […
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
…`bash CLI ant messages create --stream --format jsonl \ --model claude-opus-5-5 \ --max-tokens 1024 \ --message '{role: user, content: "Hello"}' \ | jq -rj 'select(.delta.type? == "t…
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 -…
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 --- Task budgets let you tell Claude how many tok…
thinking
Claude Developer Platform · in the page
build-with-claude/thinking
…orm.claude.com/docs/en/build-with-claude/prompt-engineering/prompting-claude-opus-5-5#user-facing-progress-updates). ### Thinking block preservation by model Whether thinking blocks from previous as…