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18 changes: 13 additions & 5 deletions leanring-buddy/AI/OpenAIAPI.swift
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ class OpenAIAPI {
var model: String
private let session: URLSession

init(proxyURL: String, model: String = "gpt-4o") {
init(proxyURL: String, model: String = "gpt-5.4") {
self.apiURL = URL(string: proxyURL)!
self.model = model

Expand Down Expand Up @@ -100,7 +100,8 @@ class OpenAIAPI {
contentBlocks.append([
"type": "image_url",
"image_url": [
"url": "data:image/jpeg;base64,\(image.data.base64EncodedString())"
"url": "data:image/jpeg;base64,\(image.data.base64EncodedString())",
"detail": "high"
]
])
}
Expand All @@ -110,12 +111,15 @@ class OpenAIAPI {
])
messages.append(["role": "user", "content": contentBlocks])

let body: [String: Any] = [
var body: [String: Any] = [
"model": model,
"max_completion_tokens": 1024,
"stream": true,
"messages": messages
]
if model.hasPrefix("gpt-5") {
body["reasoning_effort"] = "high"
}

let bodyData = try JSONSerialization.data(withJSONObject: body)
request.httpBody = bodyData
Expand Down Expand Up @@ -202,7 +206,8 @@ class OpenAIAPI {
contentBlocks.append([
"type": "image_url",
"image_url": [
"url": "data:image/jpeg;base64,\(image.data.base64EncodedString())"
"url": "data:image/jpeg;base64,\(image.data.base64EncodedString())",
"detail": "high"
]
])
}
Expand All @@ -212,11 +217,14 @@ class OpenAIAPI {
])
messages.append(["role": "user", "content": contentBlocks])

let body: [String: Any] = [
var body: [String: Any] = [
"model": model,
"max_completion_tokens": 256,
"messages": messages
]
if model.hasPrefix("gpt-5") {
body["reasoning_effort"] = "high"
}

let bodyData = try JSONSerialization.data(withJSONObject: body)
request.httpBody = bodyData
Expand Down
15 changes: 14 additions & 1 deletion leanring-buddy/App/CompanionManager.swift
Original file line number Diff line number Diff line change
Expand Up @@ -130,8 +130,21 @@ final class CompanionManager: ObservableObject {
/// Used by the panel to show accurate status text ("Active" vs "Ready").
@Published private(set) var isOverlayVisible: Bool = false

private static let defaultAIModel = "gpt-5.4"

/// The AI model used for voice responses. Persisted to UserDefaults.
@Published var selectedModel: String = UserDefaults.standard.string(forKey: "selectedAIModel") ?? "gpt-4o"
@Published var selectedModel: String = {
let selectedAIModelUserDefaultsKey = "selectedAIModel"
let legacyModelIDs = ["gpt-4o", "gpt-4o-mini", "gpt-4.1"]

if let savedModel = UserDefaults.standard.string(forKey: selectedAIModelUserDefaultsKey),
!legacyModelIDs.contains(savedModel) {
return savedModel
}

UserDefaults.standard.set(defaultAIModel, forKey: selectedAIModelUserDefaultsKey)
return defaultAIModel
}()

func setSelectedModel(_ model: String) {
selectedModel = model
Expand Down
4 changes: 2 additions & 2 deletions leanring-buddy/UI/CompanionPanelView.swift
Original file line number Diff line number Diff line change
Expand Up @@ -631,8 +631,8 @@ struct CompanionPanelView: View {
Spacer()

HStack(spacing: 0) {
modelOptionButton(label: "GPT-4o", modelID: "gpt-4o")
modelOptionButton(label: "GPT-4o mini", modelID: "gpt-4o-mini")
modelOptionButton(label: "GPT-5.4", modelID: "gpt-5.4")
modelOptionButton(label: "GPT-4.1", modelID: "gpt-4.1")
}
.background(
RoundedRectangle(cornerRadius: 6, style: .continuous)
Expand Down