198 pages for compatibility.

Claude Code gateway compatibility guide Claude Code CLI · title llm-gateway-protocol Versioning and Compatibility Model Context Protocol · title specification/2026-07-28/basic/versioning Versioning and Compatibility Model Context Protocol · title specification/draft/basic/versioning Or, for the model with the same capabilities and no access approval requirement: Claude Developer Platform · in the page about-claude/models/migration-guide …e same as on Claude Opus 4.7. Most SDKs still define these fields for compatibility with earlier models, so code that sets them type-checks even though the API rejects the request. The Python SDK (v1.… optimizing-for-cost-and-intelligence Claude Developer Platform · in the page about-claude/models/optimizing-for-cost-and-intelligence …2025. * **What was measured:** A 482-problem subset selected for compatibility with Anthropic's evaluation harness; scores are not comparable to the public leaderboard. They are also not comparab… ticket-routing Claude Developer Platform · in the page about-claude/use-case-guides/ticket-routing …le="Technical issue"> * Hardware problem * Software bug * Compatibility issue * Performance problem </Accordion> <Accordion title="Account management"> * Password reset *… quickstart Claude Developer Platform · in the page agents-and-tools/agent-skills/quickstart …form.claude.com/docs/en/agents-and-tools/tool-use/code-execution-tool#compatibility) * **`container.skills`:** Specifies which Skills Claude can use * **`type: "anthropic"`:** Indicates this is an Ant… advisor-tool Claude Developer Platform · in the page agents-and-tools/tool-use/advisor-tool …shapes side by side and which advisor models return which, and [Model compatibility](https://platform.claude.com/docs/en/agents-and-tools/tool-use/advisor-tool#model-compatibility) for the full list o… browser-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/browser-use-tool …| See [Compatibility](https://platform.claude.com/docs/en/agents-and-tools/tool-use/browser-use-tool#compatibility) for the supported mod… code-execution-tool Claude Developer Platform · in the page agents-and-tools/tool-use/code-execution-tool …form.claude.com/docs/en/agents-and-tools/tool-use/code-execution-tool#compatibility) accepts all three. Each version builds on the previous one: * `code_execution_20250825` supports Bash commands and… computer-use-tool Claude Developer Platform · in the page agents-and-tools/tool-use/computer-use-tool …claude-on-vertex-ai) as the `computer_toolset_20260801` toolset; see [Compatibility](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use-tool#compatibility) for the supported mo… tool-reference Claude Developer Platform · in the page agents-and-tools/tool-use/tool-reference …| For model compatibility, see each tool's page. Supported models vary by tool and by tool version. To check from your code whether a model ac… tool-search-tool Claude Developer Platform · in the page agents-and-tools/tool-use/tool-search-tool …usands of tools. For the models that support tool search, see [Model compatibility](https://platform.claude.com/docs/en/agents-and-tools/tool-use/tool-search-tool#model-compatibility). <Tip> For b… Beta Claude Developer Platform · in the page api/beta …rt setting temperature. A value of 1.0 will be accepted for backwards compatibility, all other values will be rejected with a 400 error. Amount of randomness injected into the response. Defaults… Messages Claude Developer Platform · in the page api/beta/messages …rt setting temperature. A value of 1.0 will be accepted for backwards compatibility, all other values will be rejected with a 400 error. Amount of randomness injected into the response. Defaults… Batches Claude Developer Platform · in the page api/beta/messages/batches …rt setting temperature. A value of 1.0 will be accepted for backwards compatibility, all other values will be rejected with a 400 error. Amount of randomness injected into the response.… Create a Message Batch Claude Developer Platform · in the page api/beta/messages/batches/create …rt setting temperature. A value of 1.0 will be accepted for backwards compatibility, all other values will be rejected with a 400 error. Amount of randomness injected into the response.… Create a Message Claude Developer Platform · in the page api/beta/messages/create …rt setting temperature. A value of 1.0 will be accepted for backwards compatibility, all other values will be rejected with a 400 error. Amount of randomness injected into the response. Defaults… Completions Claude Developer Platform · in the page api/completions …rt setting temperature. A value of 1.0 will be accepted for backwards compatibility, all other values will be rejected with a 400 error. Amount of randomness injected into the response. Defaults… Create a Text Completion Claude Developer Platform · in the page api/completions/create …rt setting temperature. A value of 1.0 will be accepted for backwards compatibility, all other values will be rejected with a 400 error. Amount of randomness injected into the response. Defaults… Messages Claude Developer Platform · in the page api/messages …rt setting temperature. A value of 1.0 will be accepted for backwards compatibility, all other values will be rejected with a 400 error. Amount of randomness injected into the response. Defaults… Batches Claude Developer Platform · in the page api/messages/batches …rt setting temperature. A value of 1.0 will be accepted for backwards compatibility, all other values will be rejected with a 400 error. Amount of randomness injected into the response.… Create a Message Batch Claude Developer Platform · in the page api/messages/batches/create …rt setting temperature. A value of 1.0 will be accepted for backwards compatibility, all other values will be rejected with a 400 error. Amount of randomness injected into the response.… Create a Message Claude Developer Platform · in the page api/messages/create …rt setting temperature. A value of 1.0 will be accepted for backwards compatibility, all other values will be rejected with a 400 error. Amount of randomness injected into the response. Defaults… citations Claude Developer Platform · in the page build-with-claude/citations …s, `cited_text` is also not counted toward input tokens. ### Feature compatibility Citations work in conjunction with other API features including [prompt caching](https://platform.claude.com/docs/e… claude-platform-on-aws Claude Developer Platform · in the page build-with-claude/claude-platform-on-aws …wsClientOptions.AwsRegion`), falling back to `AWS_DEFAULT_REGION` for compatibility with the standard AWS SDKs. Region is required and there is no default: `AnthropicAWS` (typescript: `AnthropicAws`;… sent_count = len(messages sent in the compaction request) Claude Developer Platform · in the page build-with-claude/compaction …aging long conversations that approach context window limits. --- ## Compatibility - Status: Beta - [Beta header](https://platform.claude.com/docs/en/api/beta-headers): `compact-2026-01-12` - [ZDR](h… files Claude Developer Platform · in the page build-with-claude/files …form.claude.com/docs/en/agents-and-tools/tool-use/code-execution-tool#compatibility), see the linked pages for model support. ## How the Files API works The Files API provides a create-once, use-man… prompting-claude-fable-5 Claude Developer Platform · in the page build-with-claude/prompt-engineering/prompting-claude-fable-5 …ies (user input, external APIs). Don't use feature flags or backwards-compatibility shims when you can just change the code. ``` ## Strong instruction following Instruction-following is improved eno… skills-guide Claude Developer Platform · in the page build-with-claude/skills-guide …kills require the code execution tool, so use a model from its [model compatibility list](https://platform.claude.com/docs/en/agents-and-tools/tool-use/code-execution-tool#compatibility). *** ## Usi… structured-outputs Claude Developer Platform · in the page build-with-claude/structured-outputs …med by the AI model upon receiving the JSON schema. * **Version compatibility:** Local validation might fail while remote validation succeeds if the SDK version is outdated. * **Disabling… thinking Claude Developer Platform · in the page build-with-claude/thinking …form.claude.com/docs/en/build-with-claude/thinking#limits-and-feature-compatibility)). Where forced tool use is accepted, the response starts with the tool call and has no `thinking` block. 2. **Prese… openai-sdk Claude Developer Platform · in the page cli-sdks-libraries/libraries/openai-sdk --- title: OpenAI SDK compatibility url: https://platform.claude.com/docs/en/cli-sdks-libraries/libraries/openai-sdk description: Anthropic provides a compatibility layer that lets you use the OpenAI… overview Claude Developer Platform · in the page cli-sdks-libraries/overview …s, and error handling. * **Libraries and integrations:** Packages and compatibility layers that expose Claude inside another framework's API surface rather than the Messages API directly. <Info> Fo… csharp Claude Developer Platform · in the page cli-sdks-libraries/sdks/csharp …expected to impact the vast majority of users in practice. Backward compatibility is taken seriously to ensure you can rely on a smooth upgrade experience. ## Additional resources * [GitHub reposi… go Claude Developer Platform · in the page cli-sdks-libraries/sdks/go …expected to impact the vast majority of users in practice. Backward compatibility is taken seriously to ensure you can rely on a smooth upgrade experience. Your feedback is welcome; open an [issue]… java Claude Developer Platform · in the page cli-sdks-libraries/sdks/java …g: ```bash export ANTHROPIC_LOG=debug ``` <Accordion title="Jackson compatibility"> The SDK depends on Jackson for JSON serialization/deserialization. It is compatible with version 2.13.4 or highe… typescript Claude Developer Platform · in the page cli-sdks-libraries/sdks/typescript …expected to impact the vast majority of users in practice. Backward compatibility is taken seriously to ensure you can rely on a smooth upgrade experience. ## Frequently asked questions See the [G… compliance-sessions Claude Developer Platform · in the page manage-claude/compliance-sessions …use an unusable key produces a 503 instead, but handle it for forward compatibility. `retention_elapsed` means the content aged past retention. `oversize` means a single message exceeded the per-messa… data-residency Claude Developer Platform · in the page manage-claude/data-residency …nference_geo` parameter is also not available through the [OpenAI SDK compatibility endpoint](https://platform.claude.com/docs/en/cli-sdks-libraries/libraries/openai-sdk). </Note> ### Workspace-level… inference-hooks-endpoint Claude Developer Platform · in the page manage-claude/inference-hooks-endpoint …the future, so handle an unrecognized value gracefully (see [Forward compatibility](https://platform.claude.com/docs/en/manage-claude/inference-hooks-endpoint#forward-compatibility)). | | `request_id… user-profiles Claude Developer Platform · in the page manage-claude/user-profiles …aude.com/docs/en/build-with-claude/batch-processing), and [OpenAI SDK compatibility](https://platform.claude.com/docs/en/cli-sdks-libraries/libraries/openai-sdk) requests. On a batch, it applies to ev… multiagent-orchestration Claude Developer Platform · in the page managed-agents/multiagent-orchestration …he session continues. Valid pairings follow the advisor tool's [model compatibility](https://platform.claude.com/docs/en/agents-and-tools/tool-use/advisor-tool#model-compatibility) table. The advisor… Or, for Claude Mythos 5.1, which offers the same capabilities to verified organizations: Claude Developer Platform · in the page models/fable-5-1/migration-guide …lid_request_error`. Choose an advisor from the executor's row in the [compatibility table](https://platform.claude.com/docs/en/agents-and-tools/tool-use/advisor-tool#model-compatibility). ### Behavio… whats-new-fable-5-1 Claude Developer Platform · in the page models/fable-5-1/whats-new-fable-5-1 …y return a 400 `invalid_request_error`. See the advisor tool's [Model compatibility](https://platform.claude.com/docs/en/agents-and-tools/tool-use/advisor-tool#model-compatibility). ## New features… migration-guide Claude Developer Platform · in the page models/haiku-5-5/migration-guide …eturns a 400 error. For other platforms, see the computer use tool's [Compatibility](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use-tool#compatibility) section. On the Cla… migration-guide Claude Developer Platform · in the page models/opus-5-5/migration-guide …zon Bedrock, keep `computer_20251124`; check the computer use tool's [Compatibility](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use-tool#compatibility) section for other pl… whats-new-opus-5-5 Claude Developer Platform · in the page models/opus-5-5/whats-new-opus-5-5 …ge is needed there. For other platforms, see the computer use tool's [Compatibility](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use-tool#compatibility) section. Integration… migration-guide Claude Developer Platform · in the page models/sonnet-5-5/migration-guide …) lists the request and agent-loop changes. For other platforms, see [Compatibility](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use-tool#compatibility). ### The advisor to… whats-new-sonnet-5-5 Claude Developer Platform · in the page models/sonnet-5-5/whats-new-sonnet-5-5 …I and Google Cloud. For other platforms, see the computer use tool's [Compatibility](https://platform.claude.com/docs/en/agents-and-tools/tool-use/computer-use-tool#compatibility) section. Integration…