245 pages for sonnet.
Titles and paths first, then pages whose text carries it. Each row opens that page as this site last read it.
prompting-claude-sonnet-5
Claude Developer Platform · title
build-with-claude/prompt-engineering/prompting-claude-sonnet-5
Sonnet migration
Claude Developer Platform · title
models/sonnet-5/migration-guide
whats-new-sonnet-5
Claude Developer Platform · title
models/sonnet-5/whats-new-sonnet-5
claude-sonnet-3-5
Claude Developer Platform · title
release-notes/system-prompts/claude-sonnet-3-5
claude-sonnet-3-7
Claude Developer Platform · title
release-notes/system-prompts/claude-sonnet-3-7
claude-sonnet-4
Claude Developer Platform · title
release-notes/system-prompts/claude-sonnet-4
claude-sonnet-4-5
Claude Developer Platform · title
release-notes/system-prompts/claude-sonnet-4-5
claude-sonnet-4-6
Claude Developer Platform · title
release-notes/system-prompts/claude-sonnet-4-6
claude-sonnet-5
Claude Developer Platform · title
release-notes/system-prompts/claude-sonnet-5
overview
Claude Developer Platform · path
models/sonnet-4-5/overview
overview
Claude Developer Platform · path
models/sonnet-4-6/overview
overview
Claude Developer Platform · path
models/sonnet-5/overview
model-deprecations
Claude Developer Platform · in the page
about-claude/model-deprecations
…| April 14, 2026 | June 15, 2026 | | claude-sonnet-5-5 | Active | N/A | Not sooner than September 28, 2027 | | claude-sonnet-5 | Acti…
choosing-a-model
Claude Developer Platform · in the page
about-claude/models/choosing-a-model
…ability for everyday coding, agent, and enterprise workloads | Claude Sonnet 5.5 | Code generation, data analysis, content creation, visual understanding, agentic tool use…
Or, for the model with the same capabilities and no access approval requirement:
Claude Developer Platform · in the page
about-claude/models/migration-guide
…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 run with…
model-ids-and-versions
Claude Developer Platform · in the page
about-claude/models/model-ids-and-versions
…e-{name}-{major}[-{minor}] ``` Major-version releases such as Claude Sonnet 5 and Claude Opus 5 omit the minor segment. For example: `claude-sonnet-4-6`, `claude-sonnet-5`, `claude-opus-4-6`, `claud…
optimizing-for-cost-and-intelligence
Claude Developer Platform · in the page
about-claude/models/optimizing-for-cost-and-intelligence
…hing, Claude Fable 5.1 falls from $37.94 to $7.12 per task and Claude Sonnet 5 from $3.20 to $1.20](https://platform.claude.com/docs/images/cost-intel-caching.png) The cache's default lifetime is 5 m…
pricing
Claude Developer Platform · in the page
about-claude/pricing
…k | $1.50 / MTok | $75 / MTok | | Claude Sonnet 5.5 | $…
Create an instance of the Claude API client
Claude Developer Platform · in the page
about-claude/use-case-guides/ticket-routing
…intent categories, or complex reasoning, you may opt for the [larger Sonnet model](https://platform.claude.com/docs/en/models/overview). ### Build a strong prompt Ticket routing is a type of classi…
PDF Processing
Claude Developer Platform · in the page
agents-and-tools/agent-skills/best-practices
…fast, economical): Does the Skill provide enough guidance? * **Claude Sonnet** (balanced): Is the Skill clear and efficient? * **Claude Opus** (powerful reasoning): Does the Skill avoid over-explainin…
claude-api-skill
Claude Developer Platform · in the page
agents-and-tools/agent-skills/claude-api-skill
…odels/opus-5-5/migration-guide#migrating-from-claude-opus-5), [Claude Sonnet 5.5](https://platform.claude.com/docs/en/models/sonnet-5-5/migration-guide#migrating-from-claude-sonnet-5), and [Claude Fab…
enterprise
Claude Developer Platform · in the page
agents-and-tools/agent-skills/enterprise
…ses. Require testing across the models your organization uses (Haiku, Sonnet, Opus), because Skill effectiveness varies by model. For detailed guidance on building evaluations, see [evaluation and it…
advisor-tool
Claude Developer Platform · in the page
agents-and-tools/tool-use/advisor-tool
…use it The advisor fits these configurations: * **You currently use Sonnet on complex tasks:** Add a higher-tier advisor. Opus keeps total cost similar or lower; Claude Fable 5.1 maximizes the quali…
bash-tool
Claude Developer Platform · in the page
agents-and-tools/tool-use/bash-tool
…of the tool, and it requires no beta header. Every model from Claude Sonnet 3.7 ([retired](https://platform.claude.com/docs/en/about-claude/model-deprecations)) onward accepts it, including all curre…
browser-use-tool
Claude Developer Platform · in the page
agents-and-tools/tool-use/browser-use-tool
…laude-mythos-5 - claude-opus-5-5 - claude-opus-5 - claude-sonnet-5-5 - claude-sonnet-5 - claude-opus-4-8 supportedPlatforms: Claude API: ga Claude Platform on AWS: not av…
code-execution-tool
Claude Developer Platform · in the page
agents-and-tools/tool-use/code-execution-tool
…4-7 - claude-opus-4-6 - claude-opus-4-5-20251101 - claude-sonnet-5-5 - claude-sonnet-5 - claude-sonnet-4-6 - claude-sonnet-4-5-20250929 - claude-haiku-4-5-20251001 suppor…
computer-use-tool
Claude Developer Platform · in the page
agents-and-tools/tool-use/computer-use-tool
…laude-mythos-5 - claude-opus-5-5 - claude-opus-5 - claude-sonnet-5-5 - claude-sonnet-5 - claude-opus-4-8 supportedPlatforms: Claude API: ga Claude Platform on AWS: beta…
define-tools
Claude Developer Platform · in the page
agents-and-tools/tool-use/define-tools
…| | Claude Opus 5.5, Claude Sonnet 5.5, Claude Fable 5.1, and [Claude Mythos 5.1](https://anthropic.com/glasswing) | `any` and `tool` ret…
overview
Claude Developer Platform · in the page
agents-and-tools/tool-use/overview
…ikely to recognize that a parameter is missing and ask for it. Claude Sonnet might ask, especially when prompted to think before outputting a tool request. But it might also infer a reasonable value.…
parallel-tool-use
Claude Developer Platform · in the page
agents-and-tools/tool-use/parallel-tool-use
…e: true` means Claude calls exactly one tool. Claude Opus 5.5, Claude Sonnet 5.5, Claude Fable 5.1, and Claude Mythos 5.1 don't support these `tool_choice` types (see [Forcing tool use](https://platfo…
Process results programmatically
Claude Developer Platform · in the page
agents-and-tools/tool-use/programmatic-tool-calling
…4-7 - claude-opus-4-6 - claude-opus-4-5-20251101 - claude-sonnet-5-5 - claude-sonnet-5 - claude-sonnet-4-6 - claude-sonnet-4-5-20250929 supportedPlatforms: Claude API: ga…
text-editor-tool
Claude Developer Platform · in the page
agents-and-tools/tool-use/text-editor-tool
…text editor tool documentation. This version is optimized for Claude Sonnet 3.7 but has identical capabilities to the previous version.…
tool-search-tool
Claude Developer Platform · in the page
agents-and-tools/tool-use/tool-search-tool
…rch_tool_regex_20251119`, `tool_search_tool_bm25_20251119` | | Claude Sonnet 5.5 (claude-sonnet-5-5) | `tool_search_tool_regex_20251119`, `tool_search_tool_bm25_20251119` | | Claude Opus 4.8…
Beta
Claude Developer Platform · in the page
api/beta
…e through trusted access programs - `"claude-sonnet-5"` High-performance model for coding and agents - `"claude-fable-5"`…
Agents
Claude Developer Platform · in the page
api/beta/agents
…sModel = string or "claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent. See [models](https://docs.anthropic.com/en/docs/models-overv…
Archive Agent
Claude Developer Platform · in the page
api/beta/agents/archive
…`string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent. See [models](https://docs.anthropic.com/en/docs/mode…
Create Agent
Claude Developer Platform · in the page
api/beta/agents/create
…sModel = string or "claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent. See [models](https://docs.anthropic.com/en/docs/models-overv…
List Agents
Claude Developer Platform · in the page
api/beta/agents/list
…`string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent. See [models](https://docs.anthropic.com/en/docs/mode…
Get Agent
Claude Developer Platform · in the page
api/beta/agents/retrieve
…`string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent. See [models](https://docs.anthropic.com/en/docs/mode…
Update Agent
Claude Developer Platform · in the page
api/beta/agents/update
…sModel = string or "claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent. See [models](https://docs.anthropic.com/en/docs/models-overv…
Versions
Claude Developer Platform · in the page
api/beta/agents/versions
…`string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent. See [models](https://docs.anthropic.com/en/docs/mode…
List Agent Versions
Claude Developer Platform · in the page
api/beta/agents/versions/list
…`string` - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more` The model that will power your agent. See [models](https://docs.anthropic.com/en/docs/mode…
Messages
Claude Developer Platform · in the page
api/beta/messages
…e through trusted access programs - `"claude-sonnet-5"` High-performance model for coding and agents - `"claude-fable-5"`…
Batches
Claude Developer Platform · in the page
api/beta/messages/batches
…rough trusted access programs - `"claude-sonnet-5"` High-performance model for coding and agents - `"claude-fab…
Create a Message Batch
Claude Developer Platform · in the page
api/beta/messages/batches/create
…rough trusted access programs - `"claude-sonnet-5"` High-performance model for coding and agents - `"claude-fab…
Retrieve Message Batch results
Claude Developer Platform · in the page
api/beta/messages/batches/results
…rough trusted access programs - `"claude-sonnet-5"` High-performance model for coding and agents - `"claude-fab…
Count tokens in a Message
Claude Developer Platform · in the page
api/beta/messages/count_tokens
…e through trusted access programs - `"claude-sonnet-5"` High-performance model for coding and agents - `"claude-fable-5"`…
Create a Message
Claude Developer Platform · in the page
api/beta/messages/create
…e through trusted access programs - `"claude-sonnet-5"` High-performance model for coding and agents - `"claude-fable-5"`…
Organization
Claude Developer Platform · in the page
api/beta/organization
…Human-readable name of the model group (for example, `Claude Sonnet 4.x`). For display only; it may change. - `BetaOrganizationRateLimitBatchGroup object` - `type: "batch"`…
Rate Limits
Claude Developer Platform · in the page
api/beta/organization/rate_limits
…Human-readable name of the model group (for example, `Claude Sonnet 4.x`). For display only; it may change. - `BetaOrganizationRateLimitBatchGroup object` - `type: "batch"`…