50 pages for claude-haiku-4-5-20251001.

model-deprecations Claude Developer Platform · in the page about-claude/model-deprecations …ed | October 28, 2025 | February 19, 2026 | | 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"… Create an instance of the Claude API client Claude Developer Platform · in the page about-claude/use-case-guides/ticket-routing …etween cost, accuracy, and response time. Many customers have found `claude-haiku-4-5-20251001` an ideal model for ticket routing, as it is the fastest and most cost-effective model in the Claude 4 f… code-execution-tool Claude Developer Platform · in the page agents-and-tools/tool-use/code-execution-tool …_execution_20260120`, `code_execution_20260521` | | Claude Haiku 4.5 (claude-haiku-4-5-20251001) | `code_execution_20250825`, `code_execution_20260120`, `code_execution_20260521` | Each tool versio… 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_tool_regex_20251119`, `tool_search_tool_bm25_20251119` | Claude Opus 4.1 and earlier… Beta Claude Developer Platform · in the page api/beta …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Agents Claude Developer Platform · in the page api/beta/agents …5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Powerful… Archive Agent Claude Developer Platform · in the page api/beta/agents/archive …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Pow… Create Agent Claude Developer Platform · in the page api/beta/agents/create …5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Powerful… List Agents Claude Developer Platform · in the page api/beta/agents/list …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Pow… Get Agent Claude Developer Platform · in the page api/beta/agents/retrieve …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Pow… Update Agent Claude Developer Platform · in the page api/beta/agents/update …5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Powerful… Versions Claude Developer Platform · in the page api/beta/agents/versions …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Pow… List Agent Versions Claude Developer Platform · in the page api/beta/agents/versions/list …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Pow… Messages Claude Developer Platform · in the page api/beta/messages …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Batches Claude Developer Platform · in the page api/beta/messages/batches …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-… Create a Message Batch Claude Developer Platform · in the page api/beta/messages/batches/create …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-… Retrieve Message Batch results Claude Developer Platform · in the page api/beta/messages/batches/results …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-… Count tokens in a Message Claude Developer Platform · in the page api/beta/messages/count_tokens …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Create a Message Claude Developer Platform · in the page api/beta/messages/create …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Sessions Claude Developer Platform · in the page api/beta/sessions …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Archive Session Claude Developer Platform · in the page api/beta/sessions/archive …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Create Session Claude Developer Platform · in the page api/beta/sessions/create …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Events Claude Developer Platform · in the page api/beta/sessions/events …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… List Events Claude Developer Platform · in the page api/beta/sessions/events/list …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Stream Events Claude Developer Platform · in the page api/beta/sessions/events/stream …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… List Sessions Claude Developer Platform · in the page api/beta/sessions/list …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Get Session Claude Developer Platform · in the page api/beta/sessions/retrieve …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Threads Claude Developer Platform · in the page api/beta/sessions/threads …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Archive Session Thread Claude Developer Platform · in the page api/beta/sessions/threads/archive …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Events Claude Developer Platform · in the page api/beta/sessions/threads/events …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… List Session Thread Events Claude Developer Platform · in the page api/beta/sessions/threads/events/list …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Stream Session Thread Events Claude Developer Platform · in the page api/beta/sessions/threads/events/stream …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… List Session Threads Claude Developer Platform · in the page api/beta/sessions/threads/list …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Get Session Thread Claude Developer Platform · in the page api/beta/sessions/threads/retrieve …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Update Session Claude Developer Platform · in the page api/beta/sessions/update …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Completions Claude Developer Platform · in the page api/completions …u-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Powerful intell… Create a Text Completion Claude Developer Platform · in the page api/completions/create …u-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Powerful intell… Messages Claude Developer Platform · in the page api/messages …u-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Powerful intell… Batches Claude Developer Platform · in the page api/messages/batches …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Pow… Create a Message Batch Claude Developer Platform · in the page api/messages/batches/create …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Pow… Retrieve Message Batch results Claude Developer Platform · in the page api/messages/batches/results …Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"`… Count tokens in a Message Claude Developer Platform · in the page api/messages/count_tokens …u-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Powerful intell… Create a Message Claude Developer Platform · in the page api/messages/create …u-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Powerful intell… claude-on-amazon-bedrock-legacy Claude Developer Platform · in the page build-with-claude/claude-on-amazon-bedrock-legacy …| No | No | No | | Claude Haiku 4.5 | anthropic.claude-haiku-4-5-20251001-v1:0 | Yes | Yes | Yes | No | No | | Claude Haiku 3.5 Deprecated. | anthropic.claude-3-5-h… 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) | claude… 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 …nnet-4-6`, `claude-sonnet-4-5-20250929`, `claude-opus-4-5-20251101`, `claude-haiku-4-5-20251001` - Platforms: Claude API, Claude Platform on AWS, Amazon Bedrock [1], Google Cloud, Microsoft Foundry 1.…