[FEATURE] Configure custom models in the /model picker

[joerivwijn]

Preflight Checklist

• I have searched existing requests and this feature hasn't been requested yet
• This is a single feature request (not multiple features)

Problem Statement

I like to switch model versions during Claude Code sessions, depending on the task. There is a built-in /model command to do so, but it is not possible to configure custom models available in the /model picker in the settings file. This is especially relevant when routing through AWS Bedrock rather than the Claude API, which require custom model id's ("us." prefix and ":0" suffix) for all models.

Proposed Solution

Enable the /model picker list to be configurable in the ~/.claude/settings.json or through shell variables.

Alternative Solutions

There are several workarounds possible:

1. Create a local shell variable local HAIKU_MODEL='us.anthropic.claude-haiku-4-5-20251101-v1:0' with the logic to default to this model with an alias claude --haiku
2. Create an environment variable export ANTHROPIC_DEFAULT_HAIKU_MODEL='us.anthropic.claude-haiku-4-5-20251101-v1:0'. I can now select this specific model in two ways: I can either run the /model haiku command, or I can select the "haiku" model in the /model picker selection which will then select the new Bedrock version rather than the default Haiku API model id.

Priority

Medium - Would be very helpful

Feature Category

Configuration and settings

Use Case Example

1. I'm working in a Claude Code session on a codebase
2. I want to switch to quick execution from Opus to Haiku for some testing.
3. I hit /model , but now my options don't show what I need (Haiku is missing, Opus is showing 4.1 and 4.5 with API model id's rather than Bedrock)
4. With the configurable picker, I can instead automatically select what I need.

Additional Context

Here's a screenshot showing Claude suggestion on the implementation:

[github-actions]

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Found 3 possible duplicate issues:

1. [FEATURE] Make Claude model ID fully configurable (including AWS China regions and custom models) #12969
2. Is it possible to define multiple custom models to choose from in /model? #2480
3. Custom Bedrock models not discoverable in /model command list #10169

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🤖 Generated with Claude Code

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[github-actions]

This issue has been automatically closed as a duplicate of #12969.

If this is incorrect, please re-open this issue or create a new one.

🤖 Generated with Claude Code

[github-actions]

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