50 pages for /context.

context-editing Claude Developer Platform · path build-with-claude/context-editing context-windows Claude Developer Platform · path build-with-claude/context-windows glossary Claude Developer Platform · in the page about-claude/glossary …context windows](https://platform.claude.com/docs/en/build-with-claude/context-windows) to learn more. ## Fine-tuning Fine-tuning is the process of further training a pretrained language model using… Or, for the model with the same capabilities and no access approval requirement: Claude Developer Platform · in the page about-claude/models/migration-guide …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) by default, and up to 128k output tokens per request. * **Pricing:** $10 USD per million input tokens and $50 US… optimizing-for-cost-and-intelligence Claude Developer Platform · in the page about-claude/models/optimizing-for-cost-and-intelligence …context editing](https://platform.claude.com/docs/en/build-with-claude/context-editing#context-editing-and-prompt-caching) pass invalidates the prefix from the point it clears and the next request pay… pricing Claude Developer Platform · in the page about-claude/pricing …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) at standard pricing. (A 900k-token request is billed at the same per-token rate as a 9k-token request.) Prompt c… PDF Processing Claude Developer Platform · in the page agents-and-tools/agent-skills/best-practices …[context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) is a public good. Your Skill shares the context window with everything else Claude needs to know, including: *… advisor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/advisor-tool …clear_thinking`](https://platform.claude.com/docs/en/build-with-claude/context-editing) with a `keep` value other than `"all"` shifts the advisor's quoted transcript each turn, causing advisor-side ca… fine-grained-tool-streaming Claude Developer Platform · in the page agents-and-tools/tool-use/fine-grained-tool-streaming …on="stack" href="https://platform.claude.com/docs/en/build-with-claude/context-windows"> Understand how the context window works, how extended thinking and tool use count toward it, and how to man… manage-tool-context Claude Developer Platform · in the page agents-and-tools/tool-use/manage-tool-context …Context editing](https://platform.claude.com/docs/en/build-with-claude/context-editing) | ### Tool search Tool search keeps tool definitions out of the context wind… memory-tool Claude Developer Platform · in the page agents-and-tools/tool-use/memory-tool …Context editing](https://platform.claude.com/docs/en/build-with-claude/context-editing). ## Using with compaction The memory tool can also be paired with [compaction](https://platform.claude.com/doc… Log at info level Claude Developer Platform · in the page agents-and-tools/tool-use/tool-runner …tic [compaction](https://platform.claude.com/docs/en/build-with-claude/context-editing#client-side-compaction-sdk), which generates summaries when token usage exceeds a threshold so the conversation c… beta-headers Claude Developer Platform · in the page api/beta-headers …context editing](https://platform.claude.com/docs/en/build-with-claude/context-editing) beta as the example. The SDKs take beta names in the `betas` parameter and send the `anthropic-beta` header for… claude-in-microsoft-foundry Claude Developer Platform · in the page build-with-claude/claude-in-microsoft-foundry …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows), while managing costs through your Azure subscription. Claude is available in Global Standard and US Data Zone… claude-on-amazon-bedrock-legacy Claude Developer Platform · in the page build-with-claude/claude-on-amazon-bedrock-legacy …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) on Amazon Bedrock. Other Claude models, including Sonnet 4.5 and Sonnet 4 (deprecated), have a 200k-token contex… claude-on-vertex-ai Claude Developer Platform · in the page build-with-claude/claude-on-vertex-ai …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) on Agent Platform. Other Claude models, including Sonnet 4.5 and Sonnet 4 (deprecated), have a 200k-token contex… claude-platform-on-aws Claude Developer Platform · in the page build-with-claude/claude-platform-on-aws …Context windows](https://platform.claude.com/docs/en/build-with-claude/context-windows) for per-model limits. ## Feature support Claude Platform on AWS uses Claude API endpoints directly, which mean… compaction Claude Developer Platform · in the page build-with-claude/compaction …con="edit" href="https://platform.claude.com/docs/en/build-with-claude/context-editing"> Automatically manage conversation context as it grows with context editing. </Card> <Card title="Conte… overview Claude Developer Platform · in the page build-with-claude/overview …Context windows](https://platform.claude.com/docs/en/build-with-claude/context-windows) | Up to 1M tokens for processing large documents, extensive code bases, and long conversations.… claude-prompting-best-practices Claude Developer Platform · in the page build-with-claude/prompt-engineering/claude-prompting-best-practices …ntext awareness](https://platform.claude.com/docs/en/build-with-claude/context-windows#context-awareness), enabling the model to track its remaining context window (that is, its "token budget") throug… prompting-claude-opus-5 Claude Developer Platform · in the page build-with-claude/prompt-engineering/prompting-claude-opus-5 …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) as both the default and the maximum, and its instruction following, tool calling, and reasoning stay consistent… thinking Claude Developer Platform · in the page build-with-claude/thinking …diting strategy](https://platform.claude.com/docs/en/build-with-claude/context-editing#thinking-block-clearing). Within the latest assistant message, the sequence of consecutive `thinking` blocks mus… token-counting Claude Developer Platform · in the page build-with-claude/token-counting …-maximize" href="https://platform.claude.com/docs/en/build-with-claude/context-windows"> Use token counts to keep prompts within a model's context window. </Card> <Card title="Rate limits" ic… java Claude Developer Platform · in the page cli-sdks-libraries/sdks/java …context editing](https://platform.claude.com/docs/en/build-with-claude/context-editing): ```java import com.anthropic.models.beta.AnthropicBeta; import com.anthropic.models.beta.messages.BetaMessage;… For Amazon Bedrock support Claude Developer Platform · in the page cli-sdks-libraries/sdks/python …context editing](https://platform.claude.com/docs/en/build-with-claude/context-editing): ```python client = Anthropic() response = client.beta.messages.create( model="claude-opus-5", max_tok… typescript Claude Developer Platform · in the page cli-sdks-libraries/sdks/typescript …context editing](https://platform.claude.com/docs/en/build-with-claude/context-editing): ```typescript const client = new Anthropic(); const response = await client.beta.messages.create({ model: "c… api-and-data-retention Claude Developer Platform · in the page manage-claude/api-and-data-retention …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | `/v1/messages` | <Eligible>Yes</Eligible>… introducing-claude-fable-5-and-claude-mythos-5 Claude Developer Platform · in the page models/fable-5/introducing-claude-fable-5-and-claude-mythos-5 …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) by default, and up to 128k output tokens per request. * **Pricing:** $10 USD per million input tokens and $50 US… Or, for the model with the same capabilities and no access approval requirement: Claude Developer Platform · in the page models/fable-5/migration-guide …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) by default, and up to 128k output tokens per request. * **Pricing:** $10 USD per million input tokens and $50 US… overview Claude Developer Platform · in the page models/fable-5/overview …[Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 1M tokens | | Max output… overview Claude Developer Platform · in the page models/haiku-4-5/overview …[Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 200K tokens | | Max output… overview Claude Developer Platform · in the page models/mythos-5/overview …[Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 1M tokens | | Max output… overview Claude Developer Platform · in the page models/opus-4-5/overview …[Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 200K tokens | | Max output… overview Claude Developer Platform · in the page models/opus-4-6/overview …[Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 1M tokens | | Max output… overview Claude Developer Platform · in the page models/opus-4-7/overview …[Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 1M tokens | | Max output… overview Claude Developer Platform · in the page models/opus-4-8/overview …[Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 1M tokens | | Max output… Opus migration Claude Developer Platform · in the page models/opus-5/migration-guide …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) (the default, with no beta header), [128k max output tokens](https://platform.claude.com/docs/en/models/overview… overview Claude Developer Platform · in the page models/opus-5/overview …[Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 1M tokens | | Max output… whats-new-opus-5 Claude Developer Platform · in the page models/opus-5/whats-new-opus-5 …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) (1M tokens is both the default and the maximum; there is no smaller context variant), 128k max output tokens, an… Models overview Claude Developer Platform · in the page models/overview …[Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 1M tokens | 1M tokens… overview Claude Developer Platform · in the page models/sonnet-4-5/overview …[Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 200K tokens | | Max output… overview Claude Developer Platform · in the page models/sonnet-4-6/overview …[Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 1M tokens | | Max output… Sonnet migration Claude Developer Platform · in the page models/sonnet-5/migration-guide …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows), [adaptive thinking](https://platform.claude.com/docs/en/build-with-claude/thinking), [prompt caching](https://p… overview Claude Developer Platform · in the page models/sonnet-5/overview …[Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 1M tokens | | Max output… whats-new-sonnet-5 Claude Developer Platform · in the page models/sonnet-5/whats-new-sonnet-5 …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) by default (1M tokens is both the default and the maximum; there is no smaller context variant), 128k max output… overview Claude Developer Platform · in the page release-notes/overview …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) (both the default and the maximum), 128k max output tokens, and [thinking](https://platform.claude.com/docs/en/b… Agent SDK reference - TypeScript Claude Code CLI · in the page agent-sdk/typescript …n's context window usage by category, skill, and tool. The same data `/context` shows in an interactive session… Claude Code on Amazon Bedrock Claude Code CLI · in the page amazon-bedrock …context window](https://platform.claude.com/docs/en/build-with-claude/context-windows#context-window-sizes-by-model) on Amazon Bedrock. Sonnet 5 always runs with the 1M window on both the Invoke API… Best practices for Claude Code Claude Code CLI · in the page best-practices …sion fills up in practice, [watch an interactive walkthrough](/docs/en/context-window) of what loads at startup and what each file read costs. Track context usage continuously with a [custom status li… Claude Code changelog Claude Code CLI · in the page changelog …ewlines in terminals that encode pasted newlines as Ctrl+J * Fixed `/context` reporting stale pre-compact token usage after compacting from the message picker * Fixed `/ultrareview` failing on des…