1,158 pages for head.
Titles and paths first, then pages whose text carries it. Each row opens that page as this site last read it.
self-hosted-sandboxes-workers
Claude Developer Platform · in the page
managed-agents/self-hosted-sandboxes-workers
…tform.claude.com/docs/en/managed-agents/overview status: beta betaHeader: managed-agents-2026-04-01 zdr: eligibility: not-eligible note: Sessions are stateful resources; transcripts pers…
session-observability
Claude Developer Platform · in the page
managed-agents/session-observability
…tform.claude.com/docs/en/managed-agents/overview status: beta betaHeader: managed-agents-2026-04-01 zdr: eligibility: not-eligible note: Sessions are stateful resources; transcripts pers…
session-operations
Claude Developer Platform · in the page
managed-agents/session-operations
…tform.claude.com/docs/en/managed-agents/overview status: beta betaHeader: managed-agents-2026-04-01 zdr: eligibility: not-eligible note: Sessions are stateful resources; transcripts pers…
session-threads
Claude Developer Platform · in the page
managed-agents/session-threads
…tform.claude.com/docs/en/managed-agents/overview status: beta betaHeader: managed-agents-2026-04-01 zdr: eligibility: not-eligible note: Sessions are stateful resources; transcripts pers…
sessions
Claude Developer Platform · in the page
managed-agents/sessions
…tform.claude.com/docs/en/managed-agents/overview status: beta betaHeader: managed-agents-2026-04-01 zdr: eligibility: not-eligible note: Sessions are stateful resources; transcripts pers…
skills
Claude Developer Platform · in the page
managed-agents/skills
…tform.claude.com/docs/en/managed-agents/overview status: beta betaHeader: managed-agents-2026-04-01 zdr: eligibility: not-eligible note: Sessions are stateful resources; transcripts pers…
tools
Claude Developer Platform · in the page
managed-agents/tools
…tform.claude.com/docs/en/managed-agents/overview status: beta betaHeader: managed-agents-2026-04-01 zdr: eligibility: not-eligible note: Sessions are stateful resources; transcripts pers…
tools-web-restrictions
Claude Developer Platform · in the page
managed-agents/tools-web-restrictions
…rl: https://platform.claude.com/docs/en/managed-agents/overview betaHeader: managed-agents-2026-04-01 supportedModels: - claude-fable-5-2 - claude-mythos-5-2 - claude-fable-5-1 - c…
vaults
Claude Developer Platform · in the page
managed-agents/vaults
…tform.claude.com/docs/en/managed-agents/overview status: beta betaHeader: managed-agents-2026-04-01 zdr: eligibility: not-eligible note: Sessions are stateful resources; transcripts pers…
webhooks
Claude Developer Platform · in the page
managed-agents/webhooks
…tform.claude.com/docs/en/managed-agents/overview status: beta betaHeader: managed-agents-2026-04-01 zdr: eligibility: not-eligible note: Sessions are stateful resources; transcripts pers…
workflow-runs
Claude Developer Platform · in the page
managed-agents/workflow-runs
…tform.claude.com/docs/en/managed-agents/overview status: beta betaHeader: managed-agents-2026-04-01 zdr: eligibility: not-eligible note: Sessions are stateful resources; transcripts pers…
overview
Claude Developer Platform · in the page
models/fable-5-1/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
migration-guide
Claude Developer Platform · in the page
models/fable-5-2/migration-guide
…Google managed), with the `thinking-binding-controls-2026-08-01` beta header, the response lists each dropped block in `input_transformations` with `reason: "organization_binding_mismatch"`. See [Thin…
overview
Claude Developer Platform · in the page
models/fable-5-2/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
whats-new-fable-5-2
Claude Developer Platform · in the page
models/fable-5-2/whats-new-fable-5-2
…ontinue instead, send the `thinking-binding-controls-2026-08-01` beta header and set `thinking.block_binding.prefix_mismatch_behavior` to `"drop_block"`. The response then lists each dropped block in…
overview
Claude Developer Platform · in the page
models/fable-5/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
overview
Claude Developer Platform · in the page
models/haiku-4-5/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
migration-guide
Claude Developer Platform · in the page
models/haiku-5-5/migration-guide
…the `computer_20250124` tool, with the `computer-use-2025-01-24` beta header. Claude Haiku 5.5 supports computer use through the `computer_toolset_20260801` toolset. A request to Claude Haiku 5.5 that…
overview
Claude Developer Platform · in the page
models/haiku-5-5/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
overview
Claude Developer Platform · in the page
models/mythos-5-1/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
overview
Claude Developer Platform · in the page
models/mythos-5-2/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
overview
Claude Developer Platform · in the page
models/mythos-5/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
overview
Claude Developer Platform · in the page
models/opus-4-5/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
overview
Claude Developer Platform · in the page
models/opus-4-6/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
overview
Claude Developer Platform · in the page
models/opus-4-7/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
overview
Claude Developer Platform · in the page
models/opus-4-8/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
migration-guide
Claude Developer Platform · in the page
models/opus-5-5/migration-guide
…ld-with-claude/context-windows) is the default. A context-window beta header sent for older models has no effect. The following request satisfies every item in the list: effort is set, and there is n…
overview
Claude Developer Platform · in the page
models/opus-5-5/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
whats-new-opus-5-5
Claude Developer Platform · in the page
models/opus-5-5/whats-new-opus-5-5
…s aren’t billed. With the `thinking-binding-controls-2026-08-01` beta header, the drop is reported in a top-level `input_transformations` array. See [Switching models mid-conversation](https://platfor…
overview
Claude Developer Platform · in the page
models/opus-5/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
Models overview
Claude Developer Platform · in the page
models/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Reliable knowledge cutoff:** The date through which the model’s knowledge is most extensive and reliable. Training dat…
overview
Claude Developer Platform · in the page
models/sonnet-4-5/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
overview
Claude Developer Platform · in the page
models/sonnet-4-6/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
migration-guide
Claude Developer Platform · in the page
models/sonnet-5-5/migration-guide
…e-toolset), without the `fine-grained-tool-streaming-2025-05-14` beta header. On Amazon Bedrock, `computer_20251124` also works. * [Pair the advisor tool](https://platform.claude.com/docs/en/models/so…
overview
Claude Developer Platform · in the page
models/sonnet-5-5/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
whats-new-sonnet-5-5
Claude Developer Platform · in the page
models/sonnet-5-5/whats-new-sonnet-5-5
…s aren’t billed. With the `thinking-binding-controls-2026-08-01` beta header, the drop is reported in a top-level `input_transformations` array. See [Switching models mid-conversation](https://platfor…
overview
Claude Developer Platform · in the page
models/sonnet-5/overview
…support up to 300k output tokens with the output-300k-2026-03-24 beta header. * **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads co…
overview
Claude Developer Platform · in the page
release-notes/overview
…per MTok of output. Set `speed: "fast"` on your request, with no beta header. ### November 5, 2026 * The [Compliance API](https://platform.claude.com/docs/en/manage-claude/compliance-api) now includ…
claude-fable-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-fable-5
…<lists_and_bullets> Claude avoids over-formatting with bold emphasis, headers, lists, and bullet points, using the minimum formatting needed for clarity. Claude uses lists, bullets, and formatting onl…
claude-fable-5-1
Claude Developer Platform · in the page
release-notes/system-prompts/claude-fable-5-1
…y requests minimal formatting or for Claude to not use bullet points, headers, lists, bold emphasis and so on, Claude should always format its responses without these things as requested. Claude neve…
claude-fable-5-2
Claude Developer Platform · in the page
release-notes/system-prompts/claude-fable-5-2
…<lists_and_bullets> Claude avoids over-formatting with bold emphasis, headers, lists, and bullet points, using the minimum formatting needed for clarity. Claude uses lists, bullets, and formatting onl…
claude-haiku-3-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-haiku-3-5
…and consistency. It always uses a single space after hash symbols for headers (e.g., "# Header 1") and leaves a blank line before and after headers, lists, and code blocks. For emphasis, Claude uses a…
claude-haiku-4-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-haiku-4-5
…de avoids over-formatting responses with elements like bold emphasis, headers, lists, and bullet points. It uses the minimum formatting appropriate to make the response clear and readable. In typical…
claude-haiku-5-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-haiku-5-5
…ing about a child. So Claude looks at where the whole conversation is heading, not only at the latest message. When it is heading there, Claude stops writing that part and keeps helping with the rest…
claude-opus-4-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-4-5
…de avoids over-formatting responses with elements like bold emphasis, headers, lists, and bullet points. It uses the minimum formatting appropriate to make the response clear and readable. If the per…
claude-opus-4-6
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-4-6
…<lists_and_bullets> Claude avoids over-formatting with bold emphasis, headers, lists, and bullet points, using the minimum formatting needed for clarity. If the person explicitly asks for minimal for…
claude-opus-4-7
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-4-7
…<lists_and_bullets> Claude avoids over-formatting with bold emphasis, headers, lists, and bullet points, using the minimum formatting needed for clarity. If the person explicitly asks for minimal for…
claude-opus-4-8
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-4-8
…<lists_and_bullets> Claude avoids over-formatting with bold emphasis, headers, lists, and bullet points, using the minimum formatting needed for clarity. If the person explicitly asks for minimal for…
claude-opus-5-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-opus-5-5
…<lists_and_bullets> Claude avoids over-formatting with bold emphasis, headers, lists, and bullet points, using the minimum formatting needed for clarity. Claude uses lists, bullets, and formatting onl…
claude-sonnet-3-5
Claude Developer Platform · in the page
release-notes/system-prompts/claude-sonnet-3-5
…and consistency. It always uses a single space after hash symbols for headers (e.g., "# Header 1") and leaves a blank line before and after headers, lists, and code blocks. For emphasis, Claude uses a…