Haiku not available in cursor CLI

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1

Where does the bug appear (feature/product)?

Cursor CLI

Describe the Bug

haiku is unavailable in cursor CLI, as of my last test.

Cursor CLI missing models (like haiku-4.5) implies that it should be available. but that thread was locked so I could not continue discussion there.

Steps to Reproduce

PS C:\git\system_test_mcp_revit> agent --force --model haiku-4.5 -p “say banana”
Cannot use this model: haiku-4.5. Available models: auto, gpt-5.3-codex-low, gpt-5.3-codex, gpt-5.3-codex-high, gpt-5.3-codex-xhigh, gpt-5.2, gpt-5.2-codex-low, gpt-5.2-codex, gpt-5.2-codex-high, gpt-5.2-codex-xhigh, gpt-5.1-codex-max-low, gpt-5.1-codex-max-medium, gpt-5.1-codex-max-high, gpt-5.1-codex-max-xhigh, composer-2.5, claude-opus-4-8-thinking-high, gpt-5.5-high, claude-opus-4-7-thinking-high, gpt-5.4-high, composer-2.5-fast, claude-opus-4-8-low, claude-opus-4-8-medium, claude-opus-4-8-high, claude-opus-4-8-xhigh, claude-opus-4-8-max, claude-opus-4-8-thinking-low, claude-opus-4-8-thinking-medium, claude-opus-4-8-thinking-xhigh, claude-opus-4-8-thinking-max, gpt-5.5-none, gpt-5.5-low, gpt-5.5-medium, gpt-5.5-extra-high, claude-4.6-sonnet-medium, claude-4.6-sonnet-medium-thinking, claude-opus-4-7-low, claude-opus-4-7-medium, claude-opus-4-7-high, claude-opus-4-7-xhigh, claude-opus-4-7-max, claude-opus-4-7-thinking-low, claude-opus-4-7-thinking-medium, claude-opus-4-7-thinking-xhigh, claude-opus-4-7-thinking-max, gpt-5.4-low, gpt-5.4-medium, gpt-5.4-xhigh, claude-4.6-opus-high, claude-4.6-opus-max, claude-4.6-opus-high-thinking, claude-4.6-opus-max-thinking, claude-4.5-opus-high, claude-4.5-opus-high-thinking, gpt-5.2-low, gpt-5.2-high, gpt-5.2-xhigh, gemini-3.1-pro, gpt-5.4-mini-none, gpt-5.4-mini-low, gpt-5.4-mini-medium, gpt-5.4-mini-high, gpt-5.4-mini-xhigh, gpt-5.4-nano-none, gpt-5.4-nano-low, gpt-5.4-nano-medium, gpt-5.4-nano-high, gpt-5.4-nano-xhigh, claude-4.5-sonnet, claude-4.5-sonnet-thinking, gpt-5.1-low, gpt-5.1, gpt-5.1-high, gemini-3-flash, gemini-3.5-flash, gpt-5.1-codex-mini-low, gpt-5.1-codex-mini, gpt-5.1-codex-mini-high, claude-4-sonnet, claude-4-sonnet-thinking, gpt-5-mini

Expected Behavior

haiku is available

Operating System

Windows 10/11

Version Information

CLI Version 2026.06.26-7079533
Model Composer 2.5
Subscription Tier Enterprise
OS win32 (x64)
Terminal unknown
Shell cmd

Does this stop you from using Cursor

No - Cursor works, but with this issue

7

Hi Mark thank you for the forum post. I confirmed that Haiku 4.5 is intentionally unavailable in the Cursor CLI today, although it remains available in the Cursor IDE.

For CLI use, you’ll need to use one of the models listed by agent models for now. If you have to use Haiku you can use it in the IDE however!