📝 CodeRabbit Chat: Implement requested code changes

[coderabbitai]

Code changes was requested by @ngoiyaeric.

• Integrate Azure Foundry GPT 5.5 model #607 (comment)

The following files were modified:

• .env.local.example
• bun.lock
• lib/utils/index.ts
• package.json

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Project	Deployment	Actions	Updated (UTC)
qcx	Ready	Preview, Comment	May 14, 2026 9:23am

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1 out of 2 committers have signed the CLA.

✅ ngoiyaeric
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[ngoiyaeric]

@coderabbitai make azure the main model

[coderabbitai]

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🧩 Analysis chain

Let me explore the codebase to understand the current model configuration.

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🏁 Script executed:

#!/bin/bash
# Look at the key files mentioned in the PR
cat lib/utils/index.ts 2>/dev/null || echo "File not found"
echo "---"
cat .env.local.example 2>/dev/null || echo "File not found"
echo "---"
# Find AI/model configuration files
fd -e ts -e tsx -e js "model" --exclude node_modules
echo "---"
# Search for model definitions or default model settings
rg -n "defaultModel\|DEFAULT_MODEL\|main.*model\|model.*default\|azure\|AZURE" --type=ts --type=tsx -i -l

Length of output: 6799

---

@ngoiyaeric Here's the change needed in lib/utils/index.ts to make Azure the first default model (moving it to the top of the fallback chain):

  // Default behavior: Azure -> Gemini -> Grok -> Bedrock -> OpenAI
  if (azureEndpoint && azureApiKey) {
    const azureOpenai = createOpenAI({
      baseURL: azureEndpoint,
      apiKey: azureApiKey,
      compatibility: 'compatible',
    });
    try {
      return azureOpenai(azureDeploymentName);
    } catch (error) {
      console.warn('Azure OpenAI API unavailable, falling back to next provider:', error);
    }
  }

  if (gemini3ProApiKey) {
    const google = createGoogleGenerativeAI({
      apiKey: gemini3ProApiKey,
    });
    try {
      return google('gemini-3.1-pro-preview');
    } catch (error) {
      console.warn('Gemini 3.1 Pro API unavailable, falling back to next provider:', error);
    }
  }

  if (xaiApiKey) {
    const xai = createXai({
      apiKey: xaiApiKey,
      baseURL: 'https://api.x.ai/v1',
    });
    try {
      return xai('grok-4-fast-non-reasoning');
    } catch (error) {
      console.warn('xAI API unavailable, falling back to next provider:');
    }
  }

  if (awsAccessKeyId && awsSecretAccessKey) {
    const bedrock = createAmazonBedrock({
      bedrockOptions: {
        region: awsRegion,
        credentials: {
          accessKeyId: awsAccessKeyId,
          secretAccessKey: awsSecretAccessKey,
        },
      },
    });
    const model = bedrock(bedrockModelId, {
      additionalModelRequestFields: { top_k: 350 },
    });
    return model;
  }

  const openai = createOpenAI({
    apiKey: openaiApiKey,
  });
  return openai('gpt-4o');

The key change is the comment and order — Azure is now checked first in the default fallback chain (Azure -> Gemini -> Grok -> Bedrock -> OpenAI). Make sure AZURE_ENDPOINT, AZURE_API_KEY, and optionally AZURE_DEPLOYMENT_NAME are set in your .env.local file (the example values are already in .env.local.example).

Would you like me to implement this change directly via a plan?

[ngoiyaeric]

@coderabbitai plan impelement that

[coderabbitai]

Tip

For best results, initiate chat on the files or code changes.

🧩 Analysis chain

Task: Make Azure the main/first model in the fallback chain

• Read lib/utils/index.ts to get the exact current code
• Reorder the provider checks so Azure comes first
• Update the fallback order comment

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🏁 Script executed:

#!/bin/bash
cat lib/utils/index.ts

Length of output: 5406

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@ngoiyaeric Here's the plan to implement the change:

Task: Make Azure the first model in the default fallback chain

• Move the Azure if block to the top of the default provider checks in lib/utils/index.ts
• Update the fallback order comment accordingly

---

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[ngoiyaeric]

@coderabbitai can you fix the model picker such that the azure endpoint is functional

[coderabbitai]

Tip

For best results, initiate chat on the files or code changes.

🧩 Analysis chain

Let me read the current state of the relevant files first.

---

🏁 Script executed:

#!/bin/bash
cat lib/utils/index.ts
echo "=== SEARCHING FOR MODEL PICKER ==="
rg -rn "model.*picker\|ModelPicker\|modelPicker\|model-picker" --type=ts --type=tsx -i -l 2>/dev/null || true
fd -e tsx -e ts "model" --exclude node_modules
echo "=== SEARCH FOR AZURE IN COMPONENTS ==="
rg -rn "azure\|AZURE" -i --type=ts --type=tsx -l 2>/dev/null || true
echo "=== SEARCH FOR MODEL SELECTOR/PICKER COMPONENTS ==="
rg -rn "ModelSelector\|model-selector\|useModel\|selectedModel\|setModel" -i --type=ts --type=tsx -l 2>/dev/null || true

Length of output: 4732

---

Let me read the model picker component and related files.

---

🏁 Script executed:

#!/bin/bash
echo "=== MODEL SELECTION FORM ==="
cat components/settings/components/model-selection-form.tsx
echo "=== .env.local.example ==="
cat .env.local.example
echo "=== getSelectedModel action ==="
fd -e ts -e tsx "users" lib/actions
rg -n "getSelectedModel\|setSelectedModel\|selectedModel" --type=ts --type=tsx -C3

Length of output: 6757

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🏁 Script executed:

#!/bin/bash
echo "=== USERS ACTION ==="
cat lib/actions/users.ts
echo "=== SETTINGS FORM/PAGE ==="
rg -rn "ModelSelectionForm\|model-selection-form\|updateSettings\|saveSettings\|selectedModel" --type=ts --type=tsx -C3
echo "=== SETTINGS PAGE ==="
fd -e tsx -e ts "settings" --exclude node_modules

Length of output: 5768

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🏁 Script executed:

#!/bin/bash
echo "=== SETTINGS VIEW ==="
cat components/settings/settings-view.tsx
echo "=== SETTINGS.TSX ==="
cat components/settings/components/settings.tsx
echo "=== SETTINGS STORE ==="
cat lib/store/settings.ts
echo "=== DB SCHEMA (look for selectedModel) ==="
fd -e ts "schema" lib/db

Length of output: 12642

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🏁 Script executed:

#!/bin/bash
echo "=== DB SCHEMA ==="
cat lib/db/schema.ts
echo "=== CHECK FOR QCX-TERRA HANDLING ==="
rg -n "QCX-Terra\|qcx-terra\|terra" --type=ts --type=tsx -i
echo "=== CHECK AZURE ENDPOINT URL FORMAT ==="
rg -n "baseURL\|azureEndpoint\|azure.*endpoint\|AZURE_ENDPOINT" --type=ts -i

Length of output: 7006

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🏁 Script executed:

#!/bin/bash
echo "=== PACKAGE.JSON ==="
cat package.json

Length of output: 3729

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@ngoiyaeric Here's what I found. There are three concrete bugs preventing the Azure endpoint from being functional:

1. Authentication header mismatch — createOpenAI sends Authorization: Bearer <key>, but Azure OpenAI / AI Foundry expects api-key: <key>. This is the main reason calls fail.
2. QCX-Terra model has no handler in getModel() — selecting it silently falls through to the default provider chain, never hitting Azure.
3. USE_AZURE=true is missing from .env.local.example — so the Azure-first default is never triggered.

Task: Fix Azure endpoint in the model picker

• Fix auth header bug in lib/utils/index.ts (both the case 'Azure GPT 5.5': block and the default USE_AZURE fallback block)
• Add missing case 'QCX-Terra': handler routing to Azure
• Add USE_AZURE=true to .env.local.example
• Update the default selected model to "Azure GPT 5.5" in components/settings/components/settings.tsx

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