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HomeDocsClaude Code CLI 21 Oct 2026
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Claude Code gateway compatibility guide changedllm-gateway-protocol

Nearest release: v2.1.307, published 3 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 21 Oct 2026 23:58 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 22 Oct 2026 00:07 UTC.

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First seen 14 Aug 2026 this site's first read of the page
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9797| Model IDs in requests by default | The provider's form, such as `us.anthropic.claude-opus-4-8` on Amazon Bedrock | Anthropic IDs, such as `claude-opus-4-8` | Anthropic IDs |
9898| `anthropic-beta` values sent | The subset Amazon Bedrock and Agent Platform accept | The full set described under [feature pass-through](#feature-pass-through), unless the developer sets [`CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS`](#disable-pre-release-capabilities) | The subset Amazon Bedrock and Agent Platform accept |
9999| Request fields for a model ID Claude Code doesn't recognize, such as a gateway alias | Thinking with a fixed budget rather than adaptive reasoning, and no effort or context management fields. Claude Code still sends [mid-conversation system messages](#feature-pass-through) | Everything current Claude models accept on the Claude API, including adaptive reasoning, effort, and context management, which an Amazon Bedrock or Agent Platform upstream can reject | Same as the Amazon Bedrock or Agent Platform format |
100| One-hour [prompt cache TTL](/docs/en/prompt-caching#choose-the-ttl-yourself) when a developer opts in | Requested through the `ttl` field in `cache_control`, with no beta value | Requested through the `ttl` field plus an `extended-cache-ttl` value in `anthropic-beta`, which you must forward | See the Claude apps gateway [availability and limitations](/docs/en/claude-apps-gateway#availability-and-limitations) table |
100| One-hour [prompt cache TTL](/docs/en/prompt-caching#choose-the-ttl-yourself) when a developer opts in | Requested through the `ttl` field in `cache_control`, with no beta value | Requested through the `ttl` field plus an `extended-cache-ttl` value in `anthropic-beta`, which you must forward | Requested through the `ttl` field, with no beta value. See [One-hour prompt cache](/docs/en/claude-apps-gateway-config#one-hour-prompt-cache) |
101101| Model for [background tasks](/docs/en/costs#background-token-usage) unless `ANTHROPIC_DEFAULT_HAIKU_MODEL` pins one | The default Sonnet model, or the main model once one is selected, as the [Amazon Bedrock](/docs/en/amazon-bedrock#4-pin-model-versions) and [Agent Platform](/docs/en/google-vertex-ai#5-pin-model-versions) pages describe | The main model, or the default Haiku model when `ANTHROPIC_API_KEY` or `apiKeyHelper` supplies an Anthropic Console key and `ANTHROPIC_AUTH_TOKEN` is unset | The main model |
102102 
103103For the features each connection supports and the telemetry it sends to Anthropic by default, see [Feature availability](/docs/en/feature-availability#availability-by-model-provider) and [Default behaviors by API provider](/docs/en/data-usage#default-behaviors-by-api-provider).
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