fix(coding-agent): update provider auth guidance and defaults

packages/coding-agent/CHANGELOG.md

@@ -21,10 +21,12 @@
 
 ### Changed
 
+- Updated default model selection across providers to current recommended models.
 - Improved stale extension context errors after session replacement or reload to tell extension authors to avoid captured `pi`/command `ctx` and use `withSession` for post-replacement work.
 
 ### Fixed
 
+- Added Amazon Bedrock setup guidance to `/login` and updated `/model` copy to refer to configured providers instead of only API keys.
 - Improved no-model and missing-auth warnings to point users to `/login` for OAuth or API key setup.
 - Fixed `/quit` shutdown ordering to stop the TUI before extension UI teardown can repaint, preserving the final rendered frame while still emitting `session_shutdown` before process exit.
 - Fixed `SettingsManager.inMemory()` initial settings being lost after reloads triggered by SDK resource loading ([#3616](https://github.com/badlogic/pi-mono/issues/3616))

packages/coding-agent/src/core/model-resolver.ts

@@ -13,28 +13,28 @@ import type { ModelRegistry } from "./model-registry.js";
 /** Default model IDs for each known provider */
 export const defaultModelPerProvider: Record<KnownProvider, string> = {
 	"amazon-bedrock": "us.anthropic.claude-opus-4-6-v1",
-	anthropic: "claude-opus-4-6",
+	anthropic: "claude-opus-4-7",
 	openai: "gpt-5.4",
-	"azure-openai-responses": "gpt-5.2",
+	"azure-openai-responses": "gpt-5.4",
-	"openai-codex": "gpt-5.4",
+	"openai-codex": "gpt-5.5",
-	google: "gemini-2.5-pro",
+	google: "gemini-3.1-pro-preview",
-	"google-gemini-cli": "gemini-2.5-pro",
+	"google-gemini-cli": "gemini-3.1-pro-preview",
 	"google-antigravity": "gemini-3.1-pro-high",
-	"google-vertex": "gemini-3-pro-preview",
+	"google-vertex": "gemini-3.1-pro-preview",
-	"github-copilot": "gpt-4o",
+	"github-copilot": "gpt-5.4",
-	openrouter: "openai/gpt-5.1-codex",
+	openrouter: "moonshotai/kimi-k2.6",
-	"vercel-ai-gateway": "anthropic/claude-opus-4-6",
+	"vercel-ai-gateway": "zai/glm-5.1",
-	xai: "grok-4-fast-non-reasoning",
+	xai: "grok-4.20-0309-reasoning",
 	groq: "openai/gpt-oss-120b",
 	cerebras: "zai-glm-4.7",
-	zai: "glm-5",
+	zai: "glm-5.1",
 	mistral: "devstral-medium-latest",
 	minimax: "MiniMax-M2.7",
 	"minimax-cn": "MiniMax-M2.7",
-	huggingface: "moonshotai/Kimi-K2.5",
+	huggingface: "moonshotai/Kimi-K2.6",
 	fireworks: "accounts/fireworks/models/kimi-k2p6",
-	opencode: "claude-opus-4-6",
+	opencode: "kimi-k2.6",
-	"opencode-go": "kimi-k2.5",
+	"opencode-go": "kimi-k2.6",
 	"kimi-coding": "kimi-for-coding",
 };
 

packages/coding-agent/src/modes/interactive/components/login-dialog.ts

@@ -31,18 +31,20 @@ export class LoginDialogComponent extends Container implements Focusable {
 		providerId: string,
 		private onComplete: (success: boolean, message?: string) => void,
 		providerNameOverride?: string,
+		titleOverride?: string,
 	) {
 		super();
 		this.tui = tui;
 
 		const providerInfo = getOAuthProviders().find((p) => p.id === providerId);
 		const providerName = providerNameOverride || providerInfo?.name || providerId;
+		const title = titleOverride ?? `Login to ${providerName}`;
 
 		// Top border
 		this.addChild(new DynamicBorder());
 
 		// Title
-		this.addChild(new Text(theme.fg("accent", theme.bold(`Login to ${providerName}`)), 1, 0));
+		this.addChild(new Text(theme.fg("accent", theme.bold(title)), 1, 0));
 
 		// Dynamic content area
 		this.contentContainer = new Container();
@@ -147,6 +149,20 @@ export class LoginDialogComponent extends Container implements Focusable {
 		});
 	}
 
+	/**
+	 * Show informational text without prompting for input.
+	 */
+	showInfo(lines: string[]): void {
+		this.contentContainer.clear();
+		this.contentContainer.addChild(new Spacer(1));
+		for (const line of lines) {
+			this.contentContainer.addChild(new Text(line, 1, 0));
+		}
+		this.contentContainer.addChild(new Spacer(1));
+		this.contentContainer.addChild(new Text(`(${keyHint("tui.select.cancel", "to close")})`, 1, 0));
+		this.tui.requestRender();
+	}
+
 	/**
 	 * Show waiting message (for polling flows like GitHub Copilot)
 	 */

packages/coding-agent/src/modes/interactive/components/model-selector.ts

@@ -93,7 +93,7 @@ export class ModelSelectorComponent extends Container implements Focusable {
 			this.scopeHintText = new Text(this.getScopeHintText(), 0, 0);
 			this.addChild(this.scopeHintText);
 		} else {
-			const hintText = "Only showing models with configured API keys (see README for details)";
+			const hintText = "Only showing models from configured providers. Use /login to add providers.";
 			this.addChild(new Text(theme.fg("warning", hintText), 0, 0));
 		}
 		this.addChild(new Spacer(1));

packages/coding-agent/src/modes/interactive/interactive-mode.ts

@@ -52,6 +52,7 @@ import {
 	getAgentDir,
 	getAuthPath,
 	getDebugLogPath,
+	getDocsPath,
 	getShareViewerUrl,
 	getUpdateInstruction,
 	VERSION,
@@ -161,7 +162,7 @@ type CompactionQueuedMessage = {
 };
 
 const ANTHROPIC_SUBSCRIPTION_AUTH_WARNING =
-	"Anthropic subscription auth is active. Third-party usage now draws from extra usage and is billed per token, not your Claude plan limits. Manage extra usage at https://claude.ai/settings/usage.";
+	"Anthropic subscription auth is active. Third-party harness usage draws from extra usage and is billed per token, not your Claude plan limits. Manage extra usage at https://claude.ai/settings/usage.";
 
 function isAnthropicSubscriptionAuthKey(apiKey: string | undefined): boolean {
 	return typeof apiKey === "string" && apiKey.startsWith("sk-ant-oat");
@@ -175,8 +176,11 @@ function hasDefaultModelProvider(providerId: string): providerId is keyof typeof
 	return providerId in defaultModelPerProvider;
 }
 
+const BEDROCK_PROVIDER_ID = "amazon-bedrock";
+
 const API_KEY_LOGIN_PROVIDERS: Record<string, string> = {
 	anthropic: "Anthropic",
+	[BEDROCK_PROVIDER_ID]: "Amazon Bedrock",
 	"azure-openai-responses": "Azure OpenAI Responses",
 	cerebras: "Cerebras",
 	fireworks: "Fireworks",
@@ -4423,6 +4427,8 @@ export class InteractiveMode {
 
 					if (providerOption.authType === "oauth") {
 						await this.showLoginDialog(providerOption.id, providerOption.name);
+					} else if (providerOption.id === BEDROCK_PROVIDER_ID) {
+						this.showBedrockSetupDialog(providerOption.id, providerOption.name);
 					} else {
 						await this.showApiKeyLoginDialog(providerOption.id, providerOption.name);
 					}
@@ -4536,6 +4542,34 @@ export class InteractiveMode {
 		}
 	}
 
+	private showBedrockSetupDialog(providerId: string, providerName: string): void {
+		const restoreEditor = () => {
+			this.editorContainer.clear();
+			this.editorContainer.addChild(this.editor);
+			this.ui.setFocus(this.editor);
+			this.ui.requestRender();
+		};
+
+		const dialog = new LoginDialogComponent(
+			this.ui,
+			providerId,
+			() => restoreEditor(),
+			providerName,
+			"Amazon Bedrock setup",
+		);
+		dialog.showInfo([
+			theme.fg("text", "Amazon Bedrock uses AWS credentials instead of a single API key."),
+			theme.fg("text", "Configure an AWS profile, IAM keys, bearer token, or role-based credentials."),
+			theme.fg("muted", "See:"),
+			theme.fg("accent", `  ${path.join(getDocsPath(), "providers.md")}`),
+		]);
+
+		this.editorContainer.clear();
+		this.editorContainer.addChild(dialog);
+		this.ui.setFocus(dialog);
+		this.ui.requestRender();
+	}
+
 	private async showApiKeyLoginDialog(providerId: string, providerName: string): Promise<void> {
 		const previousModel = this.session.model;