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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 9 Oct 2026
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apple-foundation-models changedcli-sdks-libraries/libraries/apple-foundation-models

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8787 
8888### Effort
8989 
90Pin a Claude [effort level](https://platform.claude.com/docs/en/build-with-claude/effort) for every request with `fixedEffort:`. It takes precedence over the framework's per-request reasoning hints. The framework's named reasoning levels stop at high; to request more effort for a single request instead, pass a custom reasoning level naming the Claude effort (`.custom("xhigh")` or `.custom("max")`), which maps directly. The API defaults to `high` when no effort is sent:
90Pin a Claude [effort level](https://platform.claude.com/docs/en/build-with-claude/effort) for every request with `fixedEffort:`. It takes precedence over the framework's per-request reasoning hints. The framework's named reasoning levels stop at high; to request more effort for a single request instead, pass a custom reasoning level naming the Claude effort (`.custom("xhigh")` or `.custom("max")`), which maps directly. When no effort is sent, the API uses the model's default level, which differs by model (see [Effort levels](https://platform.claude.com/docs/en/build-with-claude/effort#effort-levels)):
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9292```swift
9393ClaudeLanguageModel(name: .opus5_5, auth: auth, fixedEffort: .xhigh)
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