Shutdown calendar / Google Vertex AI
claude-3-5-haiku shut down on Jul 5, 2026
It is already gone: requests to it fail.
| Platform | ID | Shutdown | Recommended replacement | Source |
|---|---|---|---|---|
| Google Vertex AI | claude-3-5-haiku | Jul 5, 2026 shut down 84d ago | not named by the provider | official page |
What breaks
- Requests fail. After Jul 5, 2026 every call that names
claude-3-5-haikureturns an error on Google Vertex AI. Nothing is migrated for you. - Output changes. A newer model answers differently: length, format, refusals and JSON shape can all shift. Run your own prompts through both models before the date and compare.
Notes
- Vertex AI publisher model id; used as <id>@<version>
Find it in your code
Quick look:
grep -rnF "claude-3-5-haiku" --include=*.{py,js,ts,go,java,rb,yaml,yml,json,env} .Or scan the whole repo for this and every other retiring model, including parameters the replacement rejects:
Want the migration done?
Our $199 migration report runs your saved prompts on claude-3-5-haiku and on the replacement, shows the outputs side by side,
and gives you a ready patch. See pricing.