50 pages for claude-haiku-4-5.

claude-haiku-4-5 Claude Developer Platform · title release-notes/system-prompts/claude-haiku-4-5 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… advisor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/advisor-tool …+ 1): response = client.beta.messages.create( model="claude-haiku-4-5", max_tokens=4096, betas=["advisor-tool-2026-03-01"], tools=tools, messag… 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 …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Agents Claude Developer Platform · in the page api/beta/agents …-4-6"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest… Archive Agent Claude Developer Platform · in the page api/beta/agents/archive …"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fa… Create Agent Claude Developer Platform · in the page api/beta/agents/create …-4-6"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest… List Agents Claude Developer Platform · in the page api/beta/agents/list …"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fa… Get Agent Claude Developer Platform · in the page api/beta/agents/retrieve …"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fa… Update Agent Claude Developer Platform · in the page api/beta/agents/update …-4-6"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest… Versions Claude Developer Platform · in the page api/beta/agents/versions …"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fa… List Agent Versions Claude Developer Platform · in the page api/beta/agents/versions/list …"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fa… Messages Claude Developer Platform · in the page api/beta/messages …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Batches Claude Developer Platform · in the page api/beta/messages/batches …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-2025… Create a Message Batch Claude Developer Platform · in the page api/beta/messages/batches/create …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-2025… Retrieve Message Batch results Claude Developer Platform · in the page api/beta/messages/batches/results …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-2025… Count tokens in a Message Claude Developer Platform · in the page api/beta/messages/count_tokens …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Create a Message Claude Developer Platform · in the page api/beta/messages/create …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Sessions Claude Developer Platform · in the page api/beta/sessions …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Archive Session Claude Developer Platform · in the page api/beta/sessions/archive …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Create Session Claude Developer Platform · in the page api/beta/sessions/create …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Events Claude Developer Platform · in the page api/beta/sessions/events …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… List Events Claude Developer Platform · in the page api/beta/sessions/events/list …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Stream Events Claude Developer Platform · in the page api/beta/sessions/events/stream …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… List Sessions Claude Developer Platform · in the page api/beta/sessions/list …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Get Session Claude Developer Platform · in the page api/beta/sessions/retrieve …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Threads Claude Developer Platform · in the page api/beta/sessions/threads …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Archive Session Thread Claude Developer Platform · in the page api/beta/sessions/threads/archive …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Events Claude Developer Platform · in the page api/beta/sessions/threads/events …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… List Session Thread Events Claude Developer Platform · in the page api/beta/sessions/threads/events/list …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Stream Session Thread Events Claude Developer Platform · in the page api/beta/sessions/threads/events/stream …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… List Session Threads Claude Developer Platform · in the page api/beta/sessions/threads/list …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Get Session Thread Claude Developer Platform · in the page api/beta/sessions/threads/retrieve …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Update Session Claude Developer Platform · in the page api/beta/sessions/update …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Completions Claude Developer Platform · in the page api/completions …nnet-4-6"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model… Create a Text Completion Claude Developer Platform · in the page api/completions/create …nnet-4-6"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model… Messages Claude Developer Platform · in the page api/messages …nnet-4-6"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model… Batches Claude Developer Platform · in the page api/messages/batches …"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fa… Create a Message Batch Claude Developer Platform · in the page api/messages/batches/create …"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fa… Retrieve Message Batch results Claude Developer Platform · in the page api/messages/batches/results …Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"`… Count tokens in a Message Claude Developer Platform · in the page api/messages/count_tokens …nnet-4-6"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model… Create a Message Claude Developer Platform · in the page api/messages/create …nnet-4-6"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model… claude-in-amazon-bedrock Claude Developer Platform · in the page build-with-claude/claude-in-amazon-bedrock …| | Claude Haiku 4.5 | anthropic.claude-haiku-4-5 | Open | | Cl… claude-in-microsoft-foundry Claude Developer Platform · in the page build-with-claude/claude-in-microsoft-foundry …| | ✓ | | Claude Haiku 4.5 | claude-haiku-4-5 | ✓ | ✓ | By default, deployment names match the model IDs shown in the p…