348 pages for opus.
Titles and paths first, then pages whose text carries it. Each row opens that page as this site last read it.
Events
Claude Developer Platform · in the page
api/beta/sessions/threads/events
…Efficient model for coding and agents - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-fable-5-1"…
List Session Thread Events
Claude Developer Platform · in the page
api/beta/sessions/threads/events/list
…Efficient model for coding and agents - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-fable-5-1"…
Stream Session Thread Events
Claude Developer Platform · in the page
api/beta/sessions/threads/events/stream
…Efficient model for coding and agents - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-fable-5-1"…
List Session Threads
Claude Developer Platform · in the page
api/beta/sessions/threads/list
…Efficient model for coding and agents - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-fable-5-1"…
Get Session Thread
Claude Developer Platform · in the page
api/beta/sessions/threads/retrieve
…Efficient model for coding and agents - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-fable-5-1"…
Update Session
Claude Developer Platform · in the page
api/beta/sessions/update
…Efficient model for coding and agents - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-fable-5-1"`…
Completions
Claude Developer Platform · in the page
api/completions
…coding, scientific discovery, and enterprise workflows - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-mythos-5-1"` Our most…
Create a Text Completion
Claude Developer Platform · in the page
api/completions/create
…coding, scientific discovery, and enterprise workflows - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-mythos-5-1"` Our most…
Apps
Claude Developer Platform · in the page
api/compliance/apps
…odel: string or null` Model selected for this chat (e.g. 'claude-opus-5'). May be null for legacy chats that never had a model recorded. - `name: string` Chat name. Empty when `deleted_at…
Chats
Claude Developer Platform · in the page
api/compliance/apps/chats
…odel: string or null` Model selected for this chat (e.g. 'claude-opus-5'). May be null for legacy chats that never had a model recorded. - `name: string` Chat name. Empty when `deleted_at…
List chats
Claude Developer Platform · in the page
api/compliance/apps/chats/list
…odel: string or null` Model selected for this chat (e.g. 'claude-opus-5'). May be null for legacy chats that never had a model recorded. - `name: string` Chat name. Empty when `deleted_at…
Messages
Claude Developer Platform · in the page
api/compliance/apps/chats/messages
…`model: string or null` Model selected for this chat (e.g. 'claude-opus-5'). May be null for legacy chats that never had a model recorded. - `name: string` Chat name. Empty when `deleted_at` is…
Get chat messages
Claude Developer Platform · in the page
api/compliance/apps/chats/messages/list
…`model: string or null` Model selected for this chat (e.g. 'claude-opus-5'). May be null for legacy chats that never had a model recorded. - `name: string` Chat name. Empty when `deleted_at` is…
Sessions
Claude Developer Platform · in the page
api/compliance/apps/sessions
…"created_at": "2025-03-12T18:22:41.123456Z", "model": "claude-opus-5", "provenance": { "reason": "not_captured", "type": "content_unavailable" }, "role": "ass…
Local
Claude Developer Platform · in the page
api/compliance/apps/sessions/local
…"created_at": "2025-03-12T18:22:41.123456Z", "model": "claude-opus-5", "provenance": { "reason": "not_captured", "type": "content_unavailable" }, "role": "ass…
Messages
Claude Developer Platform · in the page
api/compliance/apps/sessions/local/messages
…"created_at": "2025-03-12T18:22:41.123456Z", "model": "claude-opus-5", "provenance": { "reason": "not_captured", "type": "content_unavailable" }, "role": "ass…
Retrieve local session messages
Claude Developer Platform · in the page
api/compliance/apps/sessions/local/messages/list
…"created_at": "2025-03-12T18:22:41.123456Z", "model": "claude-opus-5", "provenance": { "reason": "not_captured", "type": "content_unavailable" }, "role": "ass…
errors
Claude Developer Platform · in the page
api/errors
…ponse = client.messages.with_raw_response.create( model="claude-opus-5-5", max_tokens=1024, messages=[{"role": "user", "content": "Hello, Claude"}], ) print(f"AWS request ID: {re…
Messages
Claude Developer Platform · in the page
api/messages
…coding, scientific discovery, and enterprise workflows - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-mythos-5-1"` Our most…
Batches
Claude Developer Platform · in the page
api/messages/batches
…ing, scientific discovery, and enterprise workflows - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-mythos-5-1"`…
Create a Message Batch
Claude Developer Platform · in the page
api/messages/batches/create
…ing, scientific discovery, and enterprise workflows - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-mythos-5-1"`…
Retrieve Message Batch results
Claude Developer Platform · in the page
api/messages/batches/results
…scientific discovery, and enterprise workflows - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-mythos-5-1…
Count tokens in a Message
Claude Developer Platform · in the page
api/messages/count_tokens
…coding, scientific discovery, and enterprise workflows - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-mythos-5-1"` Our most…
Create a Message
Claude Developer Platform · in the page
api/messages/create
…coding, scientific discovery, and enterprise workflows - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-mythos-5-1"` Our most…
Models
Claude Developer Platform · in the page
api/models
…odelLine or null` The model line this model belongs to, such as `opus` for both Claude Opus 4.5 and Claude Opus 4.6. More lines may be added. `null` when the model belongs to no line; do not infe…
List Models
Claude Developer Platform · in the page
api/models/list
…odelLine or null` The model line this model belongs to, such as `opus` for both Claude Opus 4.5 and Claude Opus 4.6. More lines may be added. `null` when the model belongs to no line; do not infe…
Get a Model
Claude Developer Platform · in the page
api/models/retrieve
…odelLine or null` The model line this model belongs to, such as `opus` for both Claude Opus 4.5 and Claude Opus 4.6. More lines may be added. `null` when the model belongs to no line; do not infe…
rate-limits
Claude Developer Platform · in the page
api/rate-limits
…| 100,000 | | Claude Opus 5.5 | 1,000…
service-tiers
Claude Developer Platform · in the page
api/service-tiers
…H "content-type: application/json" \ -d '{ "model": "claude-opus-4-8", "max_tokens": 1024, "messages": [{"role": "user", "content": "Hello, Claude!"}], "service_tier": "aut…
Message Batches API
Claude Developer Platform · in the page
build-with-claude/batch-processing
…| $5 / MTok | $25 / MTok | | Claude Opus 5.5 | $2…
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 analyz…
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
--- title: Claude in Amazon Bedrock (Opus 4.7 and later) url: https://platform.claude.com/docs/en/build-with-claude/claude-in-amazon-bedrock description: Access Claude models through Amazon Bedrock wi…
claude-in-microsoft-foundry
Claude Developer Platform · in the page
build-with-claude/claude-in-microsoft-foundry
…etplace. You can use Claude models including Claude Fable 5.1, Claude Opus 5.5, Claude Opus 5, Claude Opus 4.8, Claude Sonnet 5.5, Claude Sonnet 5, and Claude Haiku 5.5, and features such as the [1M-t…
claude-on-amazon-bedrock-legacy
Claude Developer Platform · in the page
build-with-claude/claude-on-amazon-bedrock-legacy
--- title: Claude on Amazon Bedrock (Opus 4.6 and earlier) url: https://platform.claude.com/docs/en/build-with-claude/claude-on-amazon-bedrock-legacy description: The legacy Amazon Bedrock integration…
claude-on-vertex-ai
Claude Developer Platform · in the page
build-with-claude/claude-on-vertex-ai
…ams = MessageCreateParams.builder() .model(Model.CLAUDE_OPUS_5_5) .maxTokens(1024L) .addUserMessage("What is the capital of France?") .build();…
claude-platform-on-aws
Claude Developer Platform · in the page
build-with-claude/claude-platform-on-aws
…ocs/en/build-with-claude/claude-in-amazon-bedrock) | [Amazon Bedrock (Opus 4.6 and earlier)](https://platform.claude.com/docs/en/build-with-claude/claude-on-amazon-bedrock-legacy) | | ----------------…
sent_count = len(messages sent in the compaction request)
Claude Developer Platform · in the page
build-with-claude/compaction
…`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: Claude API (…
compaction-background
Claude Developer Platform · in the page
build-with-claude/compaction-background
…able-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 - claud…
compaction-keep-recent-turns
Claude Developer Platform · in the page
build-with-claude/compaction-keep-recent-turns
…able-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 - claud…
compaction-on-demand
Claude Developer Platform · in the page
build-with-claude/compaction-on-demand
…able-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 - claud…
compaction-thinking-blocks
Claude Developer Platform · in the page
build-with-claude/compaction-thinking-blocks
…able-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 - claud…
compaction-threshold
Claude Developer Platform · in the page
build-with-claude/compaction-threshold
…able-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 - claud…
context-editing
Claude Developer Platform · in the page
build-with-claude/context-editing
…------------------ | ------------------------------------------ | | Opus | Claude Opus 4.5 and later | Claude Opus 4.1 and earlier | | Sonnet | Claude Sonnet…
context-windows
Claude Developer Platform · in the page
build-with-claude/context-windows
…Fable 5.1, 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 Opus 4.6, Claude Sonnet 5.5, Claude Sonnet 5, Claude Sonnet 4.6,…
effort
Claude Developer Platform · in the page
build-with-claude/effort
…able-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-4-5-20251101…
extended-thinking
Claude Developer Platform · in the page
build-with-claude/extended-thinking
…ed; `max_tokens` remains the hard ceiling on total output. On Claude Opus 4.5, the only extended-thinking-only model that supports [effort](https://platform.claude.com/docs/en/build-with-claude/effor…
fallback-credit
Claude Developer Platform · in the page
build-with-claude/fallback-credit
…ght be refused and redeems the credit token on a retry against Claude Opus 4.8. When a retry attempt is rejected, the example degrades through the rejection ladder: the sequence of progressively simpl…
fast-mode
Claude Developer Platform · in the page
build-with-claude/fast-mode
…pecific-data-retention-requirements). supportedModels: - claude-opus-5-5 - claude-opus-5 - claude-opus-4-8 supportedPlatforms: Claude API: availability: ga note: Includ…
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": [ {…