feat(plugins/anthropic): add Claude 4.5 Haiku model (#367)

Author: oneillsp96

plugins/anthropic/src/claude.ts

@@ -236,6 +236,24 @@ export const claude45Sonnet = modelRef({
   version: 'claude-sonnet-4-5-20250929',
 });
 
+export const claude45Haiku = modelRef({
+  name: 'claude-4-5-haiku',
+  namespace: 'anthropic',
+  info: {
+    versions: ['claude-haiku-4-5-20251001', 'claude-haiku-4-5-latest'],
+    label: 'Anthropic - Claude 4.5 Haiku',
+    supports: {
+      multiturn: true,
+      tools: true,
+      media: true,
+      systemRole: true,
+      output: ['text'],
+    },
+  },
+  configSchema: AnthropicConfigSchema,
+  version: 'claude-haiku-4-5-latest',
+});
+
 export const SUPPORTED_CLAUDE_MODELS: Record<
   string,
   ModelReference<typeof AnthropicConfigSchema>
@@ -249,6 +267,7 @@ export const SUPPORTED_CLAUDE_MODELS: Record<
   'claude-4-sonnet': claude4Sonnet,
   'claude-4-opus': claude4Opus,
   'claude-4-5-sonnet': claude45Sonnet,
+  'claude-4-5-haiku': claude45Haiku,
 };
 
 /**

plugins/anthropic/src/index.ts

@@ -27,6 +27,7 @@ import {
   claude3Haiku,
   claude35Haiku,
   claude45Sonnet,
+  claude45Haiku,
   claudeModel,
   SUPPORTED_CLAUDE_MODELS,
 } from './claude.js';
@@ -44,6 +45,7 @@ export {
   claude3Haiku,
   claude35Haiku,
   claude45Sonnet,
+  claude45Haiku,
 };
 
 export interface PluginOptions {