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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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prompting-claude-sonnet-5 Claude Developer Platform · title build-with-claude/prompt-engineering/prompting-claude-sonnet-5 model-deprecations Claude Developer Platform · in the page about-claude/model-deprecations …ed | April 14, 2026 | June 15, 2026 | | claude-sonnet-5 | Active | N/A | Not sooner than June 30, 2027 | | claude-sonnet-4-6… Or, for the model with the same capabilities and no access approval requirement: Claude Developer Platform · in the page about-claude/models/migration-guide …del ID with no date suffix, the same scheme as `claude-opus-4-8` and `claude-sonnet-5`. #### Breaking changes 1. **Thinking on by default:** On Claude Opus 4.8, requests without a `thinking` field r… model-ids-and-versions Claude Developer Platform · in the page about-claude/models/model-ids-and-versions …de Opus 5 omit the minor segment. For example: `claude-sonnet-4-6`, `claude-sonnet-5`, `claude-opus-4-6`, `claude-opus-4-7`, `claude-opus-4-8`, and `claude-opus-5` On Amazon Bedrock, the correspondi… pricing Claude Developer Platform · in the page about-claude/pricing …$1.60 / MTok | $0.08 / MTok | $4 / MTok | <Note id="claude-sonnet-5-introductory-pricing"> The $2/$10 per million input/output token pricing for Claude Sonnet 5, announced at launc… advisor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/advisor-tool …\ -H "content-type: application/json" \ -d '{ "model": "claude-sonnet-5", "max_tokens": 4096, "tools": [ { "type": "advisor_20260301", "name": "ad… browser-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/browser-use-tool …ported models: `claude-fable-5`, `claude-mythos-5`, `claude-opus-5`, `claude-sonnet-5`, `claude-opus-4-8` - Platforms: Claude API, Google Cloud; not available on Claude Platform on AWS, Amazon Bedrock… code-execution-tool Claude Developer Platform · in the page agents-and-tools/tool-use/code-execution-tool …e_execution_20260120`, `code_execution_20260521` | | Claude Sonnet 5 (claude-sonnet-5) | `code_execution_20250825`, `code_execution_20260120`, `code_execution_20260521` | | Claude Opus 4.… computer-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/computer-use-tool …ported models: `claude-fable-5`, `claude-mythos-5`, `claude-opus-5`, `claude-sonnet-5`, `claude-opus-4-8` - Platforms: Claude API, Claude Platform on AWS (beta), Amazon Bedrock (beta), Google Cloud, M… Process results programmatically Claude Developer Platform · in the page agents-and-tools/tool-use/programmatic-tool-calling …| Claude Opus 4.6 (claude-opus-4-6) | | Claude Sonnet 5 (claude-sonnet-5) | | Claude Sonnet 4.6 (claude-sonnet-4-6) | | Claude Opus 4.5 (claude-opus-4-5-20251101)… Admin Claude Developer Platform · in the page api/admin …": 42, "currency": "USD" }, "model": "claude-sonnet-5", "tokens": { "cache_creation": 890, "cache_read": 3420, "input": 23… Usage Report Claude Developer Platform · in the page api/admin/usage_report …": 42, "currency": "USD" }, "model": "claude-sonnet-5", "tokens": { "cache_creation": 890, "cache_read": 3420, "input": 23… Get Claude Code Usage Report Claude Developer Platform · in the page api/admin/usage_report/retrieve_claude_code …": 42, "currency": "USD" }, "model": "claude-sonnet-5", "tokens": { "cache_creation": 890, "cache_read": 3420, "input": 23… Beta Claude Developer Platform · in the page api/beta …models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more` The model that will complete your prompt.… Agents Claude Developer Platform · in the page api/beta/agents …for additional configuration control - `BetaManagedAgentsModel = "claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more or string` The model that will power your agent. See… Archive Agent Claude Developer Platform · in the page api/beta/agents/archive …/docs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent. See [m… Create Agent Claude Developer Platform · in the page api/beta/agents/create …for additional configuration control - `BetaManagedAgentsModel = "claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more or string` The model that will power your agent. See… List Agents Claude Developer Platform · in the page api/beta/agents/list …/docs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent. See [m… Get Agent Claude Developer Platform · in the page api/beta/agents/retrieve …/docs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent. See [m… Update Agent Claude Developer Platform · in the page api/beta/agents/update …Omit to preserve. Cannot be cleared. - `BetaManagedAgentsModel = "claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more or string` The model that will power your agent. See… Versions Claude Developer Platform · in the page api/beta/agents/versions …/docs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent. See [m… List Agent Versions Claude Developer Platform · in the page api/beta/agents/versions/list …/docs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent. See [m… Messages Claude Developer Platform · in the page api/beta/messages …models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more` The model that will complete your prompt.… Batches Claude Developer Platform · in the page api/beta/messages/batches …ls-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more` The model that will complete your prompt.… Create a Message Batch Claude Developer Platform · in the page api/beta/messages/batches/create …ls-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more` The model that will complete your prompt.… Retrieve Message Batch results Claude Developer Platform · in the page api/beta/messages/batches/results …ls-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more` The model that will complete your prompt.… Count tokens in a Message Claude Developer Platform · in the page api/beta/messages/count_tokens …models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more` The model that will complete your prompt.… Create a Message Claude Developer Platform · in the page api/beta/messages/create …models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more` The model that will complete your prompt.… Sessions Claude Developer Platform · in the page api/beta/sessions …t. Omit to use the agent's model. - `BetaManagedAgentsModel = "claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more or string` The model that will power your agent.… Archive Session Claude Developer Platform · in the page api/beta/sessions/archive …ocs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent. Se… Create Session Claude Developer Platform · in the page api/beta/sessions/create …t. Omit to use the agent's model. - `BetaManagedAgentsModel = "claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more or string` The model that will power your agent.… Events Claude Developer Platform · in the page api/beta/sessions/events …s/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent.… List Events Claude Developer Platform · in the page api/beta/sessions/events/list …s/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent.… Stream Events Claude Developer Platform · in the page api/beta/sessions/events/stream …s/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent.… List Sessions Claude Developer Platform · in the page api/beta/sessions/list …ocs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent. Se… Get Session Claude Developer Platform · in the page api/beta/sessions/retrieve …ocs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent. Se… Threads Claude Developer Platform · in the page api/beta/sessions/threads …s/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent.… Archive Session Thread Claude Developer Platform · in the page api/beta/sessions/threads/archive …s/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent.… Events Claude Developer Platform · in the page api/beta/sessions/threads/events …s/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent.… List Session Thread Events Claude Developer Platform · in the page api/beta/sessions/threads/events/list …s/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent.… Stream Session Thread Events Claude Developer Platform · in the page api/beta/sessions/threads/events/stream …s/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent.… List Session Threads Claude Developer Platform · in the page api/beta/sessions/threads/list …s/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent.… Get Session Thread Claude Developer Platform · in the page api/beta/sessions/threads/retrieve …s/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent.… Update Session Claude Developer Platform · in the page api/beta/sessions/update …ocs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more` The model that will power your agent. Se… Completions Claude Developer Platform · in the page api/completions …m/en/docs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more` The model that will complete your prompt. See [mod… Create a Text Completion Claude Developer Platform · in the page api/completions/create …m/en/docs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more` The model that will complete your prompt. See [mod… errors Claude Developer Platform · in the page api/errors …\ -H "content-type: application/json" \ -d '{ "model": "claude-sonnet-5", "max_tokens": 1024, "messages": [{"role": "user", "content": "Hello, Claude"}] }' ``` ```ba… Messages Claude Developer Platform · in the page api/messages …m/en/docs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more` The model that will complete your prompt. See [mod… Batches Claude Developer Platform · in the page api/messages/batches …/docs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more` The model that will complete your prompt.… Create a Message Batch Claude Developer Platform · in the page api/messages/batches/create …/docs/models-overview) for additional details and options. - `"claude-sonnet-5" or "claude-fable-5" or "claude-mythos-5" or 12 more` The model that will complete your prompt.…