[BUG] Effort selector only appears for Sonnet in model picker — missing for Opus 4.7, Opus 4.7 (1M), and all other models (Claude Code Desktop, Windows)

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

What's Wrong?

In the Claude Code desktop app on Windows, the model dropdown at the bottom-right of the prompt box is supposed to expose an effort selector (Low / Medium / High) alongside the model choice.

In the current build, the effort selector only appears when Sonnet is selected. For every other model — Opus 4.7, Opus 4.7 (1M context), Opus 4.6, Haiku 4.5 — the effort row is completely absent from the dropdown.

This means there is no way from the desktop UI to set an effort level on any Opus or Haiku model. Effort control is effectively Sonnet-only in the GUI right now.

What Should Happen?

Expected Behavior

The effort selector should be available for every model in the dropdown that supports effort levels — which per the docs includes Opus 4.7, Opus 4.6, Sonnet 4.6, and Haiku 4.5. Users should be able to choose Low / Medium / High regardless of which model is selected.

Error Messages/Logs

Steps to Reproduce

Steps to Reproduce

1. Open Claude Code in the Claude Desktop app on Windows
2. Click the model selector in the bottom-right of the prompt box
3. Select Sonnet — observe the effort selector (Low / Medium / High) is shown
4. Select Opus 4.7 — observe the effort selector is missing
5. Select Opus 4.7 (1M context) — observe the effort selector is missing
6. Select Opus 4.6 — observe the effort selector is missing
7. Select Haiku 4.5 — observe the effort selector is missing
8. Re-select Sonnet — effort selector reappears

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Version 1.2773.0 (884b37)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code Desktop

Environment

• Product: Claude Code Desktop (GUI)
• Platform: Windows <FILL IN: 10 or 11, plus build number if known>
• App version: <FILL IN: check Settings or About in the app>
• Plan: <FILL IN: Pro / Max / Max 5x / Team / Enterprise>
• Date observed: April 16, 2026

What's Wrong?

In the Claude Code desktop app on Windows, the model dropdown at the bottom-right of the prompt box is supposed to expose an effort selector (Low / Medium / High) alongside the model choice.

In the current build, the effort selector only appears when Sonnet is selected. For every other model — Opus 4.7, Opus 4.7 (1M context), Opus 4.6, Haiku 4.5 — the effort row is completely absent from the dropdown.

This means there is no way from the desktop UI to set an effort level on any Opus or Haiku model. Effort control is effectively Sonnet-only in the GUI right now.

Steps to Reproduce

1. Open Claude Code in the Claude Desktop app on Windows
2. Click the model selector in the bottom-right of the prompt box
3. Select Sonnet — observe the effort selector (Low / Medium / High) is shown
4. Select Opus 4.7 — observe the effort selector is missing
5. Select Opus 4.7 (1M context) — observe the effort selector is missing
6. Select Opus 4.6 — observe the effort selector is missing
7. Select Haiku 4.5 — observe the effort selector is missing
8. Re-select Sonnet — effort selector reappears

Expected Behavior

The effort selector should be available for every model in the dropdown that supports effort levels — which per the docs includes Opus 4.7, Opus 4.6, Sonnet 4.6, and Haiku 4.5. Users should be able to choose Low / Medium / High regardless of which model is selected.

Actual Behavior

The effort selector only renders when Sonnet is the active model. Selecting any other model removes the effort row from the dropdown UI entirely.

Impact

• No way to adjust effort for any Opus model from the desktop UI — including the newly released Opus 4.7 and its 1M context variant
• No way to adjust effort for Haiku from the desktop UI
• Effort level silently stays at whatever default applies to the model, with no UI feedback
• Forces users who need Opus + effort control to use the terminal CLI (/effort <level> or CLAUDE_CODE_EFFORT_LEVEL) instead of the desktop app
• Timing is bad — Opus 4.7 appears to have launched today, and it's the model users most want to tune effort on

Related Issues

Reporting one distinct, independent GitHub issue about effort being missing for every model except Sonnet in the desktop app seems to not exist yet based on my search. There is prior history of desktop-specific UI bugs affecting the model picker — e.g. #36515, #36603, #36351 — but those are about the 1M context variant not being listed, not about effort being gated to Sonnet only.

Additional Context

• Opus 4.7 appears to have shipped today (April 16, 2026)
• The effort control does work correctly in the terminal CLI (Claude Code in a regular terminal), so this looks like a desktop-GUI-only rendering/gating bug rather than a backend capability issue
• I have not tested whether typing /effort <level> directly into the desktop prompt box as a slash command overrides the missing UI — worth the Anthropic team checking as part of triage