bug(web): Claude model picker only shows Sonnet; Opus 1M is missing

[flyinghanger]

What version of HAPI is running?

hapi --version:

hapi version: 0.18.4

which hapi:

/opt/homebrew/bin/hapi

What platform is your computer?

uname -mprs:

Darwin 25.4.0 arm64 arm

sw_vers:

ProductName:        macOS
ProductVersion:     26.4.1
BuildVersion:       25E253

What issue are you seeing?

In the web UI settings/model picker for a Claude session, the only selectable Claude model options shown are Sonnet and Sonnet 1M. Opus and Opus 1M are not shown, so Opus 1M cannot be selected from the UI.

The attached/supplied screenshot shows the model section containing only:

• Default
• Sonnet
• Sonnet 1M

What steps can reproduce the bug?

1. Start HAPI and open the web UI.
2. Open or create a Claude session.
3. Open the session settings/model picker.
4. Inspect the available Claude model options.

What is the expected behavior?

The Claude model picker should expose the supported Claude model presets, including Opus 1M, when the user/account can use it.

Additional information

The shared model preset list appears to include sonnet, sonnet[1m], opus, and opus[1m], so this may be a UI/settings filtering or model availability issue rather than a missing shared preset.

Local shell details:

node --version: v22.22.0
npm --version: 10.9.4
bun: command not found

[github-actions]

I verified the current codebase, and I do not see a Claude model-picker filter that would intentionally hide Opus or Opus 1M. In the current web code, Claude options are derived from the shared preset list, which includes sonnet, sonnet[1m], opus, and opus[1m]. The in-session composer model menu also appends all shared Claude presets after Default.

So if the running UI only shows Sonnet, the most likely next thing to verify is whether the deployed/running frontend bundle is older than the current code, or whether this is happening in a different picker than the in-session composer/new-session model selector.

Relevant code:

• shared/src/models.ts:1 - shared Claude preset labels include Sonnet, Sonnet 1M, Opus, and Opus 1M.
• web/src/components/AssistantChat/claudeModelOptions.ts:17 - builds Claude composer model options.
• web/src/components/AssistantChat/claudeModelOptions.ts:33 - appends every CLAUDE_MODEL_PRESETS entry to the composer options.
• web/src/components/NewSession/types.ts:21 - new-session Claude model options are derived from CLAUDE_MODEL_PRESETS.
• web/src/components/AssistantChat/claudeModelOptions.test.ts:6 - test expects the composer options to include opus and opus[1m].
• web/src/components/NewSession/types.test.ts:17 - test expects CLAUDE_MODEL_PRESETS to equal ['sonnet', 'sonnet[1m]', 'opus', 'opus[1m]'].
• shared/src/apiTypes.ts:110 - model-change request accepts any non-empty string or null; it is not restricted to Sonnet.
• hub/src/web/routes/sessions.ts:346 - hub checks only that the session flavor supports model changes before applying the requested model.
• cli/src/claude/runClaude.ts:363 - Claude-side model config accepts null or a string and normalizes it.

Need more info:

• What HAPI version or commit is running?
• Is this in the new-session model picker, the in-session composer settings menu, or another settings screen?
• A screenshot of the picker showing only Sonnet.
• Whether a hard refresh/rebuild of the web UI changes the options.

---

HAPI Bot

[flyinghanger]

Additional screenshot context:

The settings panel shown in the screenshot has:

• Permission mode options: Default, Accept Edits, Yolo, Plan Mode
• Model options: Default, Sonnet, Sonnet 1M

There are no Opus or Opus 1M entries visible in the model picker.