---
title: Prompt di sistema
url: https://platform.claude.com/docs/it/release-notes/system-prompts/overview
description: Consulta gli aggiornamenti ai prompt di sistema principali su [claude.ai](https://claude.ai) e nell'[app Claude per iOS](https://anthropic.com/ios) e nell'[app Claude per Android](https://anthropic.com/android).
---

L'interfaccia web di Claude ([claude.ai](https://claude.ai)) e le app mobili utilizzano un "system prompt" (prompt di sistema) per fornire a Claude informazioni aggiornate, come la data corrente, all'inizio di ogni conversazione. Il prompt di sistema incoraggia inoltre determinati comportamenti, come fornire sempre i frammenti di codice in Markdown. Questo prompt viene aggiornato periodicamente per migliorare le risposte di Claude. Questi aggiornamenti del prompt di sistema non si applicano alla Claude API. Alcuni modelli hanno più voci datate nelle rispettive pagine.

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  <Card id="claude-haiku-5-5" title="Claude Haiku 5.5" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-haiku-5-5" />

  <Card id="claude-sonnet-5-5" title="Claude Sonnet 5.5" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-sonnet-5-5" />

  <Card id="claude-opus-5-5" title="Claude Opus 5.5" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-opus-5-5" />

  <Card id="claude-fable-5-1" title="Claude Fable 5.1" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-fable-5-1" />

  <Card id="claude-opus-5" title="Claude Opus 5" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-opus-5" />

  <Card id="claude-sonnet-5" title="Claude Sonnet 5" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-sonnet-5" />

  <Card id="claude-fable-5" title="Claude Fable 5" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-fable-5" />

  <Card id="claude-opus-4-8" title="Claude Opus 4.8" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-opus-4-8" />

  <Card id="claude-opus-4-7" title="Claude Opus 4.7" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-opus-4-7" />

  <Card id="claude-sonnet-4-6" title="Claude Sonnet 4.6" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-sonnet-4-6" />

  <Card id="claude-opus-4-6" title="Claude Opus 4.6" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-opus-4-6" />

  <Card id="claude-opus-4-5" title="Claude Opus 4.5" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-opus-4-5" />

  <Card id="claude-haiku-4-5" title="Claude Haiku 4.5" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-haiku-4-5" />

  <Card id="claude-sonnet-4-5" title="Claude Sonnet 4.5" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-sonnet-4-5" />

  <Card id="claude-opus-4-1" title="Claude Opus 4.1" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-opus-4-1" />

  <Card id="claude-opus-4" title="Claude Opus 4" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-opus-4" />

  <Card id="claude-sonnet-4" title="Claude Sonnet 4" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-sonnet-4" />

  <Card id="claude-sonnet-3-7" title="Claude Sonnet 3.7" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-sonnet-3-7" />

  <Card id="claude-sonnet-3-5" title="Claude Sonnet 3.5" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-sonnet-3-5" />

  <Card id="claude-haiku-3-5" title="Claude Haiku 3.5" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-haiku-3-5" />

  <Card id="claude-opus-3" title="Claude Opus 3" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-opus-3" />

  <Card id="claude-haiku-3" title="Claude Haiku 3" icon="file" href="https://platform.claude.com/docs/it/release-notes/system-prompts/claude-haiku-3" />
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