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model-ids-and-versions Claude Developer Platform · in the page about-claude/models/model-ids-and-versions …d what it means for stability. --- Each Claude model ID identifies a pinned version of the model. When you use a model ID in an API request, the underlying model remains constant for the lifetime of… pricing Claude Developer Platform · in the page about-claude/pricing …dency-pricing) also applies: when an agent's `model.inference_geo` is pinned to `"us"`, tokens consumed by sessions running that agent are billed at 1.1x the standard rates, the same multiplier that a… Apps Claude Developer Platform · in the page api/compliance/apps …older (`reason: "retention_elapsed"`) in their place. The boundary is pinned on the walk's first page and honored for 24 hours: a cursor older than that is rejected with an explicit 400; restart the w… Sessions Claude Developer Platform · in the page api/compliance/apps/sessions …older (`reason: "retention_elapsed"`) in their place. The boundary is pinned on the walk's first page and honored for 24 hours: a cursor older than that is rejected with an explicit 400; restart the w… Local Claude Developer Platform · in the page api/compliance/apps/sessions/local …older (`reason: "retention_elapsed"`) in their place. The boundary is pinned on the walk's first page and honored for 24 hours: a cursor older than that is rejected with an explicit 400; restart the w… Messages Claude Developer Platform · in the page api/compliance/apps/sessions/local/messages …older (`reason: "retention_elapsed"`) in their place. The boundary is pinned on the walk's first page and honored for 24 hours: a cursor older than that is rejected with an explicit 400; restart the w… Retrieve local session messages Claude Developer Platform · in the page api/compliance/apps/sessions/local/messages/list …older (`reason: "retention_elapsed"`) in their place. The boundary is pinned on the walk's first page and honored for 24 hours: a cursor older than that is rejected with an explicit 400; restart the w… Code Claude Developer Platform · in the page api/compliance/code …ould render when `read_mode` permits them โ€” the version the owner has pinned for non-owner readers if one is pinned, otherwise the owner's latest. When `read_mode` is `owner` no non-owner renders any… Artifacts Claude Developer Platform · in the page api/compliance/code/artifacts …ould render when `read_mode` permits them โ€” the version the owner has pinned for non-owner readers if one is pinned, otherwise the owner's latest. When `read_mode` is `owner` no non-owner renders any… List Code Artifacts Claude Developer Platform · in the page api/compliance/code/artifacts/list …ould render when `read_mode` permits them โ€” the version the owner has pinned for non-owner readers if one is pinned, otherwise the owner's latest. When `read_mode` is `owner` no non-owner renders any… prompting-claude-opus-5 Claude Developer Platform · in the page build-with-claude/prompt-engineering/prompting-claude-opus-5 …t_usd` option. They require Claude Code 2.1.217 or later, so update a pinned SDK before pointing it at Claude Opus 5. Claude Code adds a delegation instruction of its own on Claude Opus 5 only when yo… refusals-and-fallback Claude Developer Platform · in the page build-with-claude/refusals-and-fallback …model}") # Non-streaming: reusing the state keeps the conversation pinned. with state: message = client.beta.messages.create( max_tokens=1024, model="claude-fable-5",… agent-setup Claude Developer Platform · in the page managed-agents/agent-setup …-H "content-type: application/json" \ -d '{ "name": "Geo-pinned assistant", "model": {"id": "claude-opus-5", "inference_geo": "us"}, "system": "You are a helpful assistant."… environments Claude Developer Platform · in the page managed-agents/environments …argo, gem, go, npm, pip). You can optionally pin specific versions. Unpinned packages install the latest version. If the environment uses `limited` [networking](https://platform.claude.com/docs/en/man… multiagent-orchestration Claude Developer Platform · in the page managed-agents/multiagent-orchestration …created `agent` by ID. If no `version` is specified, the reference is pinned to the latest version of that agent at the time the coordinator is created. * `{"type": "agent", "id": agent.id, "version":… sessions Claude Developer Platform · in the page managed-agents/sessions …ns independently. <CodeGroup defaultLanguage="CLI"> ```bash cURL pinned_session=$(curl -fsSL https://api.anthropic.com/v1/sessions \ -H "x-api-key: $ANTHROPIC_API_KEY" \ -H "anthropic-ver… overview Claude Developer Platform · in the page models/fable-5/overview …laude/models/model-ids-and-versions"> How model IDs, aliases, and pinned snapshots work. </Card> <Card title="Model deprecations" icon="clock" href="https://platform.claude.com/docs/en/about-… overview Claude Developer Platform · in the page models/haiku-4-5/overview …now * `claude-haiku-4-5` is a convenience alias that resolves to the pinned snapshot `claude-haiku-4-5-20251001`. See [Model IDs and versioning](https://platform.claude.com/docs/en/about-claude/model… overview Claude Developer Platform · in the page models/mythos-5/overview …laude/models/model-ids-and-versions"> How model IDs, aliases, and pinned snapshots work. </Card> <Card title="Model deprecations" icon="clock" href="https://platform.claude.com/docs/en/about-… overview Claude Developer Platform · in the page models/opus-4-5/overview …laude/models/model-ids-and-versions"> How model IDs, aliases, and pinned snapshots work. </Card> <Card title="Model deprecations" icon="clock" href="https://platform.claude.com/docs/en/about-… overview Claude Developer Platform · in the page models/opus-4-6/overview …laude/models/model-ids-and-versions"> How model IDs, aliases, and pinned snapshots work. </Card> <Card title="Model deprecations" icon="clock" href="https://platform.claude.com/docs/en/about-… overview Claude Developer Platform · in the page models/opus-4-7/overview …laude/models/model-ids-and-versions"> How model IDs, aliases, and pinned snapshots work. </Card> <Card title="Model deprecations" icon="clock" href="https://platform.claude.com/docs/en/about-… overview Claude Developer Platform · in the page models/opus-4-8/overview …laude/models/model-ids-and-versions"> How model IDs, aliases, and pinned snapshots work. </Card> <Card title="Model deprecations" icon="clock" href="https://platform.claude.com/docs/en/about-… overview Claude Developer Platform · in the page models/opus-5/overview …laude/models/model-ids-and-versions"> How model IDs, aliases, and pinned snapshots work. </Card> <Card title="Model deprecations" icon="clock" href="https://platform.claude.com/docs/en/about-… Models overview Claude Developer Platform · in the page models/overview …per-platform pricing. * **Claude API ID:** Every Claude model ID is a pinned snapshot, including the dateless IDs used from the 4.6 generation on. * **Thinking:** Adaptive thinking lets the model deci… overview Claude Developer Platform · in the page models/sonnet-4-5/overview …laude/models/model-ids-and-versions"> How model IDs, aliases, and pinned snapshots work. </Card> <Card title="Model deprecations" icon="clock" href="https://platform.claude.com/docs/en/about-… overview Claude Developer Platform · in the page models/sonnet-4-6/overview …laude/models/model-ids-and-versions"> How model IDs, aliases, and pinned snapshots work. </Card> <Card title="Model deprecations" icon="clock" href="https://platform.claude.com/docs/en/about-… overview Claude Developer Platform · in the page models/sonnet-5/overview …laude/models/model-ids-and-versions"> How model IDs, aliases, and pinned snapshots work. </Card> <Card title="Model deprecations" icon="clock" href="https://platform.claude.com/docs/en/about-… Hosting the Agent SDK Claude Code CLI · in the page agent-sdk/hosting …at need a separate native Claude Code install. The bundled binary is pinned to the SDK package version, so updating the SDK is how you update the CLI. The SDK follows semver: take patch releases cont… Manage multiple agents with agent view Claude Code CLI · in the page agent-view …over the full terminal and lists every session grouped by state, with pinned sessions and the ones that need you at the top. Each row shows the session's name, current activity, and its age, counted f… Claude Code on Amazon Bedrock Claude Code CLI · in the page amazon-bedrock …region, or model pins. The model pin step starts from your currently pinned models. The wizard writes to `~/.claude/settings.json`, or to `$CLAUDE_CONFIG_DIR/settings.json` when [`CLAUDE_CONFIG_DIR`]… Champion kit Claude Code CLI · in the page champion-kit …sessions and consolidate the most common questions and answers into a pinned FAQ message. **Signal that it is working:** you see repeat usage, with the same colleagues returning rather than tryin… Claude Code changelog Claude Code CLI · in the page changelog …lscreen mode covering the latest messages; the conversation now stays pinned above the panel * Fixed the `/workflows` detail dialog overflowing the terminal and losing its header off-screen when ope… Claude apps gateway configuration Claude Code CLI · in the page claude-apps-gateway-config …) the cross-region inference profiles route automatically; for region-pinned deployments use a `models:` block.… Claude apps gateway deployment and operations Claude Code CLI · in the page claude-apps-gateway-deploy …Okta, Entra, and Google 2. [Deploy the gateway](#deployment): build a pinned container image and run it on Kubernetes, Cloud Run, or your own platform. This section also covers cost, bypass, multiple-… Deploy Claude apps gateway on AWS Claude Code CLI · in the page claude-apps-gateway-on-aws …th no public address and storage encryption on. The engine version is pinned to Postgres 16, which satisfies the gateway's supported floor of PostgreSQL 14 and guarantees the parameter-group family be… Configure cloud environments Claude Code CLI · in the page cloud-environments …itory gets a 403. * **GraphQL restrictions**: the proxy serves only a pinned set of GraphQL operations for pull-request workflows. The proxy rejects everything else on the GraphQL endpoint with a 403… Discover and install prebuilt plugins through marketplaces Claude Code CLI · in the page discover-plugins …Anthropic's automated validation and safety screening. Each plugin is pinned to a specific commit SHA in the catalog. Unlike the official marketplace, you add it manually: ```shell theme={null} /plug… Environment variables Claude Code CLI · in the page env-vars …omma-separated list of [capabilities](/docs/en/model-config#customize-pinned-model-display-and-capabilities) the custom model supports, for example `effort,thinking`. See [Model configuration](/docs/e… Error reference Claude Code CLI · in the page errors …Google Cloud's Agent Platform, or Microsoft Foundry offers it. If you pinned a new model ID on one of those providers and see this error, check your provider's model catalog for availability in your r… Claude Code on Google Cloud's Agent Platform Claude Code CLI · in the page google-vertex-ai …region, or model pins. The model pin step starts from your currently pinned models. The wizard writes to `~/.claude/settings.json`, or to `$CLAUDE_CONFIG_DIR/settings.json` when [`CLAUDE_CONFIG_DIR`]… Gateway protocol reference Claude Code CLI · in the page llm-gateway-protocol …unchanged rather than allowlisting the ones you see today. A gateway pinned to an observed list strips the next capability's header or field and breaks it on the release that introduces it. The exce… Control MCP server access for your organization Claude Code CLI · in the page managed-mcp …ironment, like the rest of `.mcp.json`. A policy entry expands from a pinned environment instead, so a variable set by a project or user settings file can't change what an allowlist entry means. Becau… Connect Claude Code to tools via MCP Claude Code CLI · in the page mcp …`offline_access` in `scopes_supported`, Claude Code appends it to the pinned scopes so the access token can be refreshed without a new browser sign-in. If the server later returns a 403 `insufficient… Model configuration Claude Code CLI · in the page model-config …the [runtime default](#default-model-setting) rather than the version pinned in `model`. The two settings cover different scopes: `enforceAvailableModels` makes Default obey the allowlist, while the `… Create and distribute a plugin marketplace Claude Code CLI · in the page plugin-marketplaces …y release. A plugin with a [`command` source](#command-sources) isn't pinned by this field. If you omit `version`, the version comes from the next source in [version management](/docs/en/plugins-refer… Recommend plugins for your org Claude Code CLI · in the page plugin-relevance …e Code v2.1.153 or later. * **`/plugin` Discover tab**: the plugin is pinned to the top of the Discover list with an annotation such as "suggested for this directory" or "suggested for stripe commands… Create plugins Claude Code CLI · in the page plugins …dation; add `--strict` to treat them as errors. Approved plugins are pinned to a specific commit SHA in the [`anthropics/claude-plugins-community`](https://github.com/anthropics/claude-plugins-commun… Continue local sessions from any device with Remote Control Claude Code CLI · in the page remote-control …hine, and claude.ai/code shows the level the session is using. If you pinned a level with `CLAUDE_CODE_EFFORT_LEVEL`, the session keeps that level, and Claude Code refuses a different pick from the ef… Choose a sandbox environment Claude Code CLI · in the page sandbox-environments …to your repository and adjust the firewall allowlist, base image, and pinned Claude Code version to fit your environment. Because the firewall blocks unapproved egress, a configuration like this suppo…