67 pages for claude-haiku-4-5-20251001.
Titles and paths first, then pages whose text carries it. Each row opens that page as this site last read it.
model-deprecations
Claude Developer Platform · in the page
about-claude/model-deprecations
…| N/A | Not sooner than October 7, 2027 | | claude-haiku-4-5-20251001 | Active | N/A | Not sooner than October 15, 2026 | | claude-3-5-haiku-20241022…
Or, for the model with the same capabilities and no access approval requirement:
Claude Developer Platform · in the page
about-claude/models/migration-guide
…en/models/overview). #### Update your model name ```python model = "claude-haiku-4-5-20251001" # Before model = "claude-sonnet-5" # After ``` #### What changed 1. **Thinking configuration:** Cla…
model-ids-and-versions
Claude Developer Platform · in the page
about-claude/models/model-ids-and-versions
…}-{minor}-{YYYYMMDD} ``` For example: `claude-sonnet-4-5-20250929`, `claude-haiku-4-5-20251001` On Amazon Bedrock, these use the format: ```text wrap anthropic.claude-{name}-{major}-{minor}-{YYYYMM…
content-moderation
Claude Developer Platform · in the page
about-claude/use-case-guides/content-moderation
…moderation response = client.messages.create( model="claude-haiku-4-5-20251001", # Using the Haiku model for lower costs max_tokens=200, messages=[{"role": "user"…
code-execution-tool
Claude Developer Platform · in the page
agents-and-tools/tool-use/code-execution-tool
…net-4-6 - claude-sonnet-4-5-20250929 - claude-haiku-5-5 - claude-haiku-4-5-20251001 supportedPlatforms: Claude API: ga Claude Platform on AWS: ga Microsoft Foundry: ava…
tool-search-tool
Claude Developer Platform · in the page
agents-and-tools/tool-use/tool-search-tool
…gex_20251119`, `tool_search_tool_bm25_20251119` | | Claude Haiku 4.5 (claude-haiku-4-5-20251001) | `tool_search_to…
Beta
Claude Developer Platform · in the page
api/beta
…- `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-r…
Agents
Claude Developer Platform · in the page
api/beta/agents
…nation of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding - `"cl…
Archive Agent
Claude Developer Platform · in the page
api/beta/agents/archive
…on of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Create Agent
Claude Developer Platform · in the page
api/beta/agents/create
…nation of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding - `"cl…
List Agents
Claude Developer Platform · in the page
api/beta/agents/list
…on of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Get Agent
Claude Developer Platform · in the page
api/beta/agents/retrieve
…on of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Update Agent
Claude Developer Platform · in the page
api/beta/agents/update
…nation of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding - `"cl…
Versions
Claude Developer Platform · in the page
api/beta/agents/versions
…on of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
List Agent Versions
Claude Developer Platform · in the page
api/beta/agents/versions/list
…on of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Messages
Claude Developer Platform · in the page
api/beta/messages
…- `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-r…
Batches
Claude Developer Platform · in the page
api/beta/messages/batches
…- `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence fo…
Create a Message Batch
Claude Developer Platform · in the page
api/beta/messages/batches/create
…- `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence fo…
Retrieve Message Batch results
Claude Developer Platform · in the page
api/beta/messages/batches/results
…- `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence fo…
Count tokens in a Message
Claude Developer Platform · in the page
api/beta/messages/count_tokens
…- `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-r…
Create a Message
Claude Developer Platform · in the page
api/beta/messages/create
…- `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-r…
Sessions
Claude Developer Platform · in the page
api/beta/sessions
…f speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Archive Session
Claude Developer Platform · in the page
api/beta/sessions/archive
…f speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Create Session
Claude Developer Platform · in the page
api/beta/sessions/create
…f speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Events
Claude Developer Platform · in the page
api/beta/sessions/events
…eed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
List Events
Claude Developer Platform · in the page
api/beta/sessions/events/list
…eed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Stream Events
Claude Developer Platform · in the page
api/beta/sessions/events/stream
…eed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
List Sessions
Claude Developer Platform · in the page
api/beta/sessions/list
…f speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Get Session
Claude Developer Platform · in the page
api/beta/sessions/retrieve
…f speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Threads
Claude Developer Platform · in the page
api/beta/sessions/threads
…eed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Archive Session Thread
Claude Developer Platform · in the page
api/beta/sessions/threads/archive
…eed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Events
Claude Developer Platform · in the page
api/beta/sessions/threads/events
…eed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
List Session Thread Events
Claude Developer Platform · in the page
api/beta/sessions/threads/events/list
…eed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Stream Session Thread Events
Claude Developer Platform · in the page
api/beta/sessions/threads/events/stream
…eed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
List Session Threads
Claude Developer Platform · in the page
api/beta/sessions/threads/list
…eed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Get Session Thread
Claude Developer Platform · in the page
api/beta/sessions/threads/retrieve
…eed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Update Session
Claude Developer Platform · in the page
api/beta/sessions/update
…f speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Completions
Claude Developer Platform · in the page
api/completions
…ombination of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding - `"claude-o…
Create a Text Completion
Claude Developer Platform · in the page
api/completions/create
…ombination of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding - `"claude-o…
Messages
Claude Developer Platform · in the page
api/messages
…ombination of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding - `"claude-o…
Batches
Claude Developer Platform · in the page
api/messages/batches
…on of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Create a Message Batch
Claude Developer Platform · in the page
api/messages/batches/create
…on of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Retrieve Message Batch results
Claude Developer Platform · in the page
api/messages/batches/results
…eed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding…
Count tokens in a Message
Claude Developer Platform · in the page
api/messages/count_tokens
…ombination of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding - `"claude-o…
Create a Message
Claude Developer Platform · in the page
api/messages/create
…ombination of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding - `"claude-o…
claude-on-amazon-bedrock-legacy
Claude Developer Platform · in the page
build-with-claude/claude-on-amazon-bedrock-legacy
…| `anthropic.claude-haiku-4-5-20251001-v1:0` | Yes | Yes | Yes | No | No | ### List available models The following examples sho…
claude-platform-on-aws
Claude Developer Platform · in the page
build-with-claude/claude-platform-on-aws
…| anthropic.claude-haiku-4-5-20251001-v1:0(with a `us.` or `global.` inference profile prefix)…
handling-stop-reasons
Claude Developer Platform · in the page
build-with-claude/handling-stop-reasons
…eprecations)), you can try updating your API calls to use Haiku 4.5 (`claude-haiku-4-5-20251001`), which has different usage restrictions. Learn more about [understanding Sonnet 4.5's API safety filte…
structured-outputs
Claude Developer Platform · in the page
build-with-claude/structured-outputs
…-20250929 - claude-opus-4-5-20251101 - claude-haiku-5-5 - claude-haiku-4-5-20251001 supportedPlatforms: Claude API: ga Claude Platform on AWS: ga Amazon Bedrock: ga Googl…
API usage primer for Claude
Claude Developer Platform · in the page
claude_api_primer
…e Haiku 5.5: claude-haiku-5-5 Previous Haiku model: Claude Haiku 4.5: claude-haiku-4-5-20251001 ``` ## Calling the API ### Basic request and response <CodeGroup exclude="shell:cURL, typescript, csh…