When is claude-instant-1.1 retired?
retired
claude-instant-1.1 on Anthropic was retired on Nov 6, 2024.
Replacement: claude-haiku-4-5-20251001
| Provider (API) | Anthropic |
|---|---|
| Model ID | claude-instant-1.1 |
| Deprecation announced | — |
| Shutdown date | Nov 6, 2024 |
| Section on source page | 2024-09-04: Claude 1 and Instant models |
| Source | https://platform.claude.com/docs/en/about-claude/model-deprecations |
| Last checked | 2026-11-06T05:52:31+00:00 |
Last checked 2026-11-06 · Source · Markdown · JSON
Migration
- Anthropic lists
claude-haiku-4-5-20251001as the recommended replacement forclaude-instant-1.1(official source). - Read the provider's official notes on the source page before switching model IDs.
Embed this date
Copy this into your README or docs (it updates automatically):
<a href="https://aideprecations.com/anthropic/claude-instant-1-1/"><img src="https://aideprecations.com/badge/anthropic/claude-instant-1-1.svg" alt="claude-instant-1.1 shutdown date"></a>
More embeds on the developers page.
Free: AI Model Migration Checklist
Grep commands for code/YAML/Terraform, direct API vs Bedrock/Vertex/Azure date diff, replacement parity matrix, eval + shadow-traffic cutover, post-shutdown 404 guardrails. Preview it, or get it now:
Grep commands for code/YAML/Terraform, direct API vs Bedrock/Vertex/Azure date diff, replacement parity matrix, eval + shadow-traffic cutover, post-shutdown 404 guardrails. Preview it, or get it now:
Get free shutdown alerts + the AI Model Migration Checklist
Mon/Wed/Fri + breaking deprecations, with official links. Confirming also unlocks your personal shutdown calendar feed.
Mon/Wed/Fri + breaking deprecations, with official links. Confirming also unlocks your personal shutdown calendar feed.
Double opt-in: we email you a Confirm link. Unsubscribe anytime. Other ways to get alerts: RSS · Atom · personal calendar feed · JSON changes · webhooks · MCP subscribe_alerts. All subscribe options
AI agents: subscribe in one call with a webhook (POST https://aideprecations.com/api/subscribe, see docs) or the MCP subscribe_alerts tool at https://aideprecations.com/mcp (setup). Free.