feat: update VoyageAI to latest models (v4, 3.5, rerank-2.5)

- Add voyage-4-large, voyage-4, voyage-4-lite embedding models
- Add voyage-3.5, voyage-3.5-lite embedding models
- Add rerank-2.5, rerank-2.5-lite reranking models
- Default embeddings model: voyage-3.5
- Default rerank model: rerank-2.5
- All models verified working with live API

Author: fzowl

apps/sim/blocks/blocks/voyageai.test.ts

@@ -73,7 +73,7 @@ describe('VoyageAIBlock', () => {
 
     it('should default to embeddings operation', () => {
       const opBlock = VoyageAIBlock.subBlocks[0] as any
-      expect(opBlock.value()).toBe('embeddings')
+      expect(opBlock.value!()).toBe('embeddings')
     })
 
     it('should have embeddings-specific subBlocks with correct conditions', () => {
@@ -144,22 +144,27 @@ describe('VoyageAIBlock', () => {
       expect(topKBlock!.mode).toBe('advanced')
     })
 
-    it('should have all 6 embedding models in the dropdown', () => {
+    it('should have all embedding models in the dropdown', () => {
       const modelBlock = VoyageAIBlock.subBlocks.find((sb) => sb.id === 'embeddingModel') as any
       expect(modelBlock).toBeDefined()
       const modelIds = modelBlock.options.map((o: any) => o.id)
+      expect(modelIds).toContain('voyage-4-large')
+      expect(modelIds).toContain('voyage-4')
+      expect(modelIds).toContain('voyage-4-lite')
+      expect(modelIds).toContain('voyage-3.5')
+      expect(modelIds).toContain('voyage-3.5-lite')
       expect(modelIds).toContain('voyage-3-large')
-      expect(modelIds).toContain('voyage-3')
-      expect(modelIds).toContain('voyage-3-lite')
       expect(modelIds).toContain('voyage-code-3')
       expect(modelIds).toContain('voyage-finance-2')
       expect(modelIds).toContain('voyage-law-2')
     })
 
-    it('should have both rerank models in the dropdown', () => {
+    it('should have all rerank models in the dropdown', () => {
       const modelBlock = VoyageAIBlock.subBlocks.find((sb) => sb.id === 'rerankModel') as any
       expect(modelBlock).toBeDefined()
       const modelIds = modelBlock.options.map((o: any) => o.id)
+      expect(modelIds).toContain('rerank-2.5')
+      expect(modelIds).toContain('rerank-2.5-lite')
       expect(modelIds).toContain('rerank-2')
       expect(modelIds).toContain('rerank-2-lite')
     })

apps/sim/blocks/blocks/voyageai.ts

@@ -38,15 +38,18 @@ export const VoyageAIBlock: BlockConfig = {
       title: 'Model',
       type: 'dropdown',
       options: [
+        { label: 'voyage-4-large', id: 'voyage-4-large' },
+        { label: 'voyage-4', id: 'voyage-4' },
+        { label: 'voyage-4-lite', id: 'voyage-4-lite' },
+        { label: 'voyage-3.5', id: 'voyage-3.5' },
+        { label: 'voyage-3.5-lite', id: 'voyage-3.5-lite' },
         { label: 'voyage-3-large', id: 'voyage-3-large' },
-        { label: 'voyage-3', id: 'voyage-3' },
-        { label: 'voyage-3-lite', id: 'voyage-3-lite' },
         { label: 'voyage-code-3', id: 'voyage-code-3' },
         { label: 'voyage-finance-2', id: 'voyage-finance-2' },
         { label: 'voyage-law-2', id: 'voyage-law-2' },
       ],
       condition: { field: 'operation', value: 'embeddings' },
-      value: () => 'voyage-3',
+      value: () => 'voyage-3.5',
     },
     {
       id: 'inputType',
@@ -81,11 +84,13 @@ export const VoyageAIBlock: BlockConfig = {
       title: 'Model',
       type: 'dropdown',
       options: [
+        { label: 'rerank-2.5', id: 'rerank-2.5' },
+        { label: 'rerank-2.5-lite', id: 'rerank-2.5-lite' },
         { label: 'rerank-2', id: 'rerank-2' },
         { label: 'rerank-2-lite', id: 'rerank-2-lite' },
       ],
       condition: { field: 'operation', value: 'rerank' },
-      value: () => 'rerank-2',
+      value: () => 'rerank-2.5',
     },
     {
       id: 'topK',

apps/sim/tools/voyageai/embeddings.ts

@@ -19,7 +19,7 @@ export const embeddingsTool: ToolConfig<VoyageAIEmbeddingsParams, VoyageAIEmbedd
       required: false,
       visibility: 'user-only',
       description: 'Embedding model to use',
-      default: 'voyage-3',
+      default: 'voyage-3.5',
     },
     inputType: {
       type: 'string',
@@ -45,7 +45,7 @@ export const embeddingsTool: ToolConfig<VoyageAIEmbeddingsParams, VoyageAIEmbedd
     body: (params) => {
       const body: Record<string, unknown> = {
         input: Array.isArray(params.input) ? params.input : [params.input],
-        model: params.model || 'voyage-3',
+        model: params.model || 'voyage-3.5',
       }
       if (params.inputType) {
         body.input_type = params.inputType

apps/sim/tools/voyageai/rerank.ts

@@ -25,7 +25,7 @@ export const rerankTool: ToolConfig<VoyageAIRerankParams, VoyageAIRerankResponse
       required: false,
       visibility: 'user-only',
       description: 'Reranking model to use',
-      default: 'rerank-2',
+      default: 'rerank-2.5',
     },
     topK: {
       type: 'number',
@@ -55,7 +55,7 @@ export const rerankTool: ToolConfig<VoyageAIRerankParams, VoyageAIRerankResponse
       const body: Record<string, unknown> = {
         query: params.query,
         documents,
-        model: params.model || 'rerank-2',
+        model: params.model || 'rerank-2.5',
       }
       if (params.topK) {
         body.top_k = params.topK

apps/sim/tools/voyageai/voyageai.integration.test.ts

@@ -55,7 +55,7 @@ describeIntegration('VoyageAI Integration Tests (live API)', () => {
       expect(result.success).toBe(true)
       expect(result.output.embeddings).toHaveLength(1)
       expect(result.output.embeddings[0].length).toBeGreaterThan(100)
-      expect(result.output.model).toBe('voyage-3')
+      expect(result.output.model).toBe('voyage-3.5')
       expect(result.output.usage.total_tokens).toBeGreaterThan(0)
     }, 15000)
 
@@ -246,7 +246,7 @@ describeIntegration('VoyageAI Integration Tests (live API)', () => {
 
       expect(result.success).toBe(true)
       expect(result.output.results).toHaveLength(3)
-      expect(result.output.model).toBe('rerank-2')
+      expect(result.output.model).toBe('rerank-2.5')
       expect(result.output.usage.total_tokens).toBeGreaterThan(0)
 
       for (const r of result.output.results) {

apps/sim/tools/voyageai/voyageai.test.ts

@@ -32,7 +32,7 @@ describe('Voyage AI Embeddings Tool', () => {
       expect(embeddingsTool.params.apiKey.required).toBe(true)
       expect(embeddingsTool.params.model).toBeDefined()
       expect(embeddingsTool.params.model.required).toBe(false)
-      expect(embeddingsTool.params.model.default).toBe('voyage-3')
+      expect(embeddingsTool.params.model.default).toBe('voyage-3.5')
       expect(embeddingsTool.params.inputType).toBeDefined()
       expect(embeddingsTool.params.inputType.required).toBe(false)
     })
@@ -115,7 +115,7 @@ describe('Voyage AI Embeddings Tool', () => {
 
     it('should use default model voyage-3 when not specified', () => {
       const body = tester.getRequestBody({ apiKey: 'key', input: 'hello' })
-      expect(body.model).toBe('voyage-3')
+      expect(body.model).toBe('voyage-3.5')
     })
 
     it('should use specified model voyage-3-large', () => {
@@ -298,7 +298,7 @@ describe('Voyage AI Rerank Tool', () => {
       expect(rerankTool.params.apiKey.required).toBe(true)
       expect(rerankTool.params.model).toBeDefined()
       expect(rerankTool.params.model.required).toBe(false)
-      expect(rerankTool.params.model.default).toBe('rerank-2')
+      expect(rerankTool.params.model.default).toBe('rerank-2.5')
       expect(rerankTool.params.topK).toBeDefined()
       expect(rerankTool.params.topK.required).toBe(false)
     })
@@ -340,7 +340,7 @@ describe('Voyage AI Rerank Tool', () => {
       })
       expect(body.query).toBe('what is AI?')
       expect(body.documents).toEqual(['AI is...', 'Machine learning is...'])
-      expect(body.model).toBe('rerank-2')
+      expect(body.model).toBe('rerank-2.5')
     })
 
     it('should parse JSON string documents into array', () => {