From f6f20ca9f89dafdc978536113b1d765bffade267 Mon Sep 17 00:00:00 2001
From: Sean O'Neill <oneillsp96@gmail.com>
Date: Fri, 12 Dec 2025 11:02:15 -0500
Subject: [PATCH 1/3] feat(plugins/anthropic): add Claude 4.5 Haiku model

---
 plugins/anthropic/src/claude.ts | 19 +++++++++++++++++++
 plugins/anthropic/src/index.ts  |  2 ++
 2 files changed, 21 insertions(+)

diff --git a/plugins/anthropic/src/claude.ts b/plugins/anthropic/src/claude.ts
index 2102b93b..ae4d9b0b 100644
--- a/plugins/anthropic/src/claude.ts
+++ b/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,
 };
 
 /**
diff --git a/plugins/anthropic/src/index.ts b/plugins/anthropic/src/index.ts
index 56343f98..8c656b2c 100644
--- a/plugins/anthropic/src/index.ts
+++ b/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 {

From 3d9dad6cea8c97ac2a6835c5df54724c4d4a0992 Mon Sep 17 00:00:00 2001
From: Sean O'Neill <oneillsp96@gmail.com>
Date: Mon, 15 Dec 2025 11:38:18 -0500
Subject: [PATCH 2/3] remove 'claude-haiku-4-5-latest' specifier

---
 plugins/anthropic/src/claude.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/plugins/anthropic/src/claude.ts b/plugins/anthropic/src/claude.ts
index ae4d9b0b..bcd3f62e 100644
--- a/plugins/anthropic/src/claude.ts
+++ b/plugins/anthropic/src/claude.ts
@@ -240,7 +240,7 @@ export const claude45Haiku = modelRef({
   name: 'claude-4-5-haiku',
   namespace: 'anthropic',
   info: {
-    versions: ['claude-haiku-4-5-20251001', 'claude-haiku-4-5-latest'],
+    versions: ['claude-haiku-4-5-20251001'],
     label: 'Anthropic - Claude 4.5 Haiku',
     supports: {
       multiturn: true,
@@ -251,7 +251,7 @@ export const claude45Haiku = modelRef({
     },
   },
   configSchema: AnthropicConfigSchema,
-  version: 'claude-haiku-4-5-latest',
+  version: 'claude-haiku-4-5-20251001',
 });
 
 export const SUPPORTED_CLAUDE_MODELS: Record<

From 2f340f2dacafc0c0821c3b6ac1c0adb5c4d72fdc Mon Sep 17 00:00:00 2001
From: Sean O'Neill <oneillsp96@gmail.com>
Date: Mon, 15 Dec 2025 11:52:47 -0500
Subject: [PATCH 3/3] add test

---
 plugins/anthropic/src/claude.test.ts | 34 ++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/plugins/anthropic/src/claude.test.ts b/plugins/anthropic/src/claude.test.ts
index b72e42fb..cad347d0 100644
--- a/plugins/anthropic/src/claude.test.ts
+++ b/plugins/anthropic/src/claude.test.ts
@@ -837,6 +837,40 @@ describe('toAnthropicRequestBody', () => {
         },
       },
     },
+    {
+      should: '(claude-4-5-haiku) handles request with text messages',
+      modelName: 'claude-4-5-haiku',
+      genkitRequest: {
+        messages: [
+          { role: 'user', content: [{ text: 'Tell a joke about dogs.' }] },
+        ],
+        output: { format: 'text' },
+        config: {
+          metadata: {
+            user_id: 'exampleUser123',
+          },
+        },
+      },
+      expectedOutput: {
+        max_tokens: 4096,
+        messages: [
+          {
+            content: [
+              {
+                text: 'Tell a joke about dogs.',
+                type: 'text',
+                citations: null,
+              },
+            ],
+            role: 'user',
+          },
+        ],
+        model: 'claude-haiku-4-5-20251001',
+        metadata: {
+          user_id: 'exampleUser123',
+        },
+      },
+    },
   ];
   for (const test of testCases) {
     it(test.should, () => {