feat(providers): add Prism BYOK support

apps/docs/components/icons.tsx

@@ -5392,6 +5392,22 @@ export function BasetenIcon(props: SVGProps<SVGSVGElement>) {
   )
 }
 
+export function PrismIcon(props: SVGProps<SVGSVGElement>) {
+  return (
+    <svg
+      {...props}
+      fill='currentColor'
+      height='1em'
+      width='1em'
+      viewBox='0 0 24 24'
+      xmlns='http://www.w3.org/2000/svg'
+    >
+      <title>Prism</title>
+      <path d='M0 23.61 11.96.17l3.85 8.18L5.3 23.61H0zm12.95 0 3.74-14.04 7.23 14.04H12.95z' />
+    </svg>
+  )
+}
+
 export function CohereIcon(props: SVGProps<SVGSVGElement>) {
   return (
     <svg {...props} height='1em' width='1em' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'>

apps/docs/content/docs/platform/costs.mdx

@@ -179,6 +179,7 @@ The BYOK settings page groups providers the same way.
     | Fireworks | LLM calls |
     | Together AI | LLM calls |
     | Baseten | LLM calls |
+    | Prism | Open-source model inference (BYOK only) |
     | Ollama Cloud | LLM calls |
     | Fal.ai | Image and video generation |
   </Tab>

apps/docs/content/docs/workflows/blocks/agent.mdx

@@ -104,10 +104,11 @@ While an agent runs, Sim can stream its thinking and tool lifecycle live — the
 
 {/* agent-stream-capabilities:begin — generated by `bun run agent-stream-docs:generate`; do not edit between markers */}
 
-Live tool-call chips stream for **OpenAI, Anthropic, Azure Anthropic, Google, Vertex AI, DeepSeek, Groq, AWS Bedrock** models. Other providers run tools without live chips and project the settled final answer when the run completes; they do not ask the model to regenerate that answer just to create a stream.
+Live tool-call chips stream for **Prism, OpenAI, Anthropic, Azure Anthropic, Google, Vertex AI, DeepSeek, Groq, AWS Bedrock** models. Other providers run tools without live chips and project the settled final answer when the run completes; they do not ask the model to regenerate that answer just to create a stream.
 
 | Provider | Streamed thinking | Models |
 |----------|-------------------|--------|
+| Prism | Full thinking deltas | `prism/deepseek-v4.1-flash`, `prism/deepseek-v4-flash` |
 | OpenAI | Summaries only — Requires OpenAI organization verification; falls back to no summaries. | `gpt-6-astra`, `gpt-5.6-sol`, `gpt-5.6-terra`, `gpt-5.6-luna`, `gpt-5.5-pro`, `gpt-5.5`, `gpt-5.4-pro`, `gpt-5.4`, `gpt-5.4-mini`, `gpt-5.4-nano`, `gpt-5.2-pro`, `gpt-5.2`, `gpt-5.1`, `gpt-5-pro`, `gpt-5`, `gpt-5-mini`, `gpt-5-nano`, `o4-mini`, `o3`, `o3-mini`, `o1` |
 | Anthropic | Summaries only — These generations omit full thinking; Sim requests summarized thinking on streaming runs. | `claude-fable-5-1`, `claude-fable-5`, `claude-sonnet-5`, `claude-opus-5`, `claude-opus-4-8`, `claude-opus-4-7`, `claude-opus-4-6`, `claude-sonnet-4-6`, `claude-opus-4-5`, `claude-sonnet-4-5`, `claude-haiku-4-5` |
 | Azure OpenAI | Summaries only — Requires OpenAI organization verification; falls back to no summaries. | `azure/gpt-5.4`, `azure/gpt-5.4-mini`, `azure/gpt-5.4-nano`, `azure/gpt-5.2`, `azure/gpt-5.1`, `azure/gpt-5.1-codex`, `azure/gpt-5`, `azure/gpt-5-mini`, `azure/gpt-5-nano`, `azure/o3`, `azure/o4-mini` |

apps/sim/app/workspace/[workspaceId]/settings/components/byok/byok.tsx

@@ -35,6 +35,7 @@ import {
   ParallelIcon,
   PeopleDataLabsIcon,
   PerplexityIcon,
+  PrismIcon,
   ProspeoIcon,
   SerperIcon,
   TinyFishIcon,
@@ -151,6 +152,13 @@ const PROVIDERS: (BYOKManagerProvider & { id: BYOKProviderId })[] = [
     description: 'LLM calls',
     placeholder: 'Enter your Baseten API key',
   },
+  {
+    id: 'prism',
+    name: 'Prism',
+    icon: PrismIcon,
+    description: 'Open-source model inference',
+    placeholder: 'prism_sk_...',
+  },
   {
     id: 'ollama-cloud',
     name: 'Ollama Cloud',
@@ -355,6 +363,7 @@ const PROVIDER_SECTIONS: BYOKProviderSection[] = [
       'fireworks',
       'together',
       'baseten',
+      'prism',
       'ollama-cloud',
       'falai',
     ],

apps/sim/components/icons.tsx

@@ -5392,6 +5392,22 @@ export function BasetenIcon(props: SVGProps<SVGSVGElement>) {
   )
 }
 
+export function PrismIcon(props: SVGProps<SVGSVGElement>) {
+  return (
+    <svg
+      {...props}
+      fill='currentColor'
+      height='1em'
+      width='1em'
+      viewBox='0 0 24 24'
+      xmlns='http://www.w3.org/2000/svg'
+    >
+      <title>Prism</title>
+      <path d='M0 23.61 11.96.17l3.85 8.18L5.3 23.61H0zm12.95 0 3.74-14.04 7.23 14.04H12.95z' />
+    </svg>
+  )
+}
+
 export function CohereIcon(props: SVGProps<SVGSVGElement>) {
   return (
     <svg {...props} height='1em' width='1em' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'>

apps/sim/ee/organization-usage/components/usage-consumers.tsx

@@ -22,6 +22,7 @@ import {
   OllamaIcon,
   OpenAIIcon,
   OpenRouterIcon,
+  PrismIcon,
   SakanaIcon,
   TogetherIcon,
   VertexIcon,
@@ -73,6 +74,7 @@ const PROVIDER_ICONS: Readonly<Record<string, ComponentType<{ className?: string
   'ollama-cloud': OllamaIcon,
   openai: OpenAIIcon,
   openrouter: OpenRouterIcon,
+  prism: PrismIcon,
   sakana: SakanaIcon,
   together: TogetherIcon,
   vertex: VertexIcon,

apps/sim/lib/api-key/byok.test.ts

@@ -520,3 +520,52 @@ describe('getApiKeyWithBYOK for Fireworks', () => {
     expect(result).toEqual({ apiKey: 'platform-fireworks-key', isBYOK: false })
   })
 })
+
+describe('getApiKeyWithBYOK for Prism', () => {
+  const model = 'prism/deepseek-v4-flash'
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    resetDbChainMock()
+    mockDecryptSecret.mockImplementation(async (encrypted: string) => ({
+      decrypted: encrypted.replace('encrypted-', 'decrypted-'),
+    }))
+    mockIsOrganizationBYOKEntitled.mockResolvedValue(true)
+    mockEnv.PRISM_API_KEY = 'must-not-be-used'
+    ;(useProvidersStore.getState as ReturnType<typeof vi.fn>).mockReturnValue({
+      providers: {
+        ollama: { models: [] },
+        vllm: { models: [] },
+        litellm: { models: [] },
+      },
+    })
+  })
+
+  it('prefers a stored BYOK key over an inline key', async () => {
+    dbChainMockFns.orderBy.mockResolvedValue([storedKey('prism-key')])
+
+    await expect(
+      getApiKeyWithBYOK('prism', model, uniqueWorkspaceId(), 'inline-key')
+    ).resolves.toEqual({
+      apiKey: 'decrypted-prism-key',
+      isBYOK: true,
+      scope: 'workspace',
+    })
+  })
+
+  it('uses an inline key only when no stored key exists', async () => {
+    await expect(
+      getApiKeyWithBYOK('prism', model, uniqueWorkspaceId(), 'inline-key')
+    ).resolves.toEqual({
+      apiKey: 'inline-key',
+      isBYOK: false,
+    })
+  })
+
+  it('never falls back to an environment or platform key', async () => {
+    await expect(getApiKeyWithBYOK('prism', model, uniqueWorkspaceId())).rejects.toThrow(
+      'API key is required for Prism'
+    )
+    expect(mockGetRotatingApiKey).not.toHaveBeenCalled()
+  })
+})

apps/sim/lib/api-key/byok.ts

@@ -211,6 +211,20 @@ export async function getApiKeyWithBYOK(
     return { apiKey: userProvidedKey || env.LITELLM_API_KEY || 'empty', isBYOK: false }
   }
 
+  if (provider === 'prism') {
+    if (workspaceId) {
+      const byokResult = await getBYOKKey(workspaceId, 'prism')
+      if (byokResult) {
+        logger.info('Using BYOK key for Prism', { model, workspaceId, scope: byokResult.scope })
+        return byokResult
+      }
+    }
+    if (userProvidedKey) {
+      return { apiKey: userProvidedKey, isBYOK: false }
+    }
+    throw new Error(`API key is required for Prism ${model}`)
+  }
+
   const isFireworksModel =
     provider === 'fireworks' ||
     useProvidersStore.getState().providers.fireworks.models.includes(model)

apps/sim/lib/api/contracts/byok-keys.ts

@@ -13,6 +13,7 @@ export const byokProviderIdSchema = z.enum([
   'fireworks',
   'together',
   'baseten',
+  'prism',
   'ollama-cloud',
   'falai',
   'firecrawl',

apps/sim/providers/attachments.test.ts

@@ -355,11 +355,11 @@ describe('provider attachments', () => {
     ).toThrow('Supported attachments: images')
   })
 
-  it('rejects providers without file attachment support', () => {
+  it.each(['deepseek', 'prism'])('rejects file attachments for %s', (provider) => {
     expect(() =>
       formatMessagesForProvider(
         [{ role: 'user', content: 'Analyze this file', files: [imageFile] }],
-        'deepseek'
+        provider
       )
     ).toThrow('not supported')
   })

apps/sim/providers/attachments.ts

@@ -42,6 +42,7 @@ export type AttachmentProvider =
   | 'meta'
   | 'zai'
   | 'kimi'
+  | 'prism'
 
 export interface PreparedProviderAttachment {
   file: UserFile
@@ -156,6 +157,7 @@ const UNSUPPORTED_FILE_PROVIDERS = new Set<AttachmentProvider>([
   'nvidia',
   'meta',
   'zai',
+  'prism',
 ])
 
 const PROVIDER_SUPPORTED_LABELS: Record<AttachmentProvider, string> = {
@@ -180,6 +182,7 @@ const PROVIDER_SUPPORTED_LABELS: Record<AttachmentProvider, string> = {
   meta: 'no file attachments in the current API adapter',
   zai: 'no file attachments in the current API adapter',
   kimi: 'images through image_url message parts on multimodal models',
+  prism: 'no file attachments in the current API adapter',
 }
 
 export function getAttachmentProvider(providerId: ProviderId | string): AttachmentProvider | null {
@@ -204,6 +207,7 @@ export function getAttachmentProvider(providerId: ProviderId | string): Attachme
   if (providerId === 'meta') return 'meta'
   if (providerId === 'zai') return 'zai'
   if (providerId === 'kimi') return 'kimi'
+  if (providerId === 'prism') return 'prism'
   return null
 }
 
@@ -419,6 +423,7 @@ function isMimeTypeSupportedByProvider(
     case 'nvidia':
     case 'meta':
     case 'zai':
+    case 'prism':
       return false
     default: {
       const _exhaustive: never = provider

apps/sim/providers/models.test.ts

@@ -513,6 +513,50 @@ describe('fireworks static catalog (the sim-auto pool)', () => {
   })
 })
 
+describe('Prism provider definition', () => {
+  const modelIds = ['prism/deepseek-v4.1-flash', 'prism/deepseek-v4-flash']
+
+  it('registers its canonical models newest-first with the approved capabilities and pricing', () => {
+    expect(PROVIDER_DEFINITIONS.prism).toMatchObject({
+      id: 'prism',
+      defaultModel: modelIds[0],
+      models: [
+        {
+          id: modelIds[0],
+          pricing: { input: 0.3, cachedInput: 0.07, output: 1.2 },
+          capabilities: {
+            temperature: { min: 0, max: 2 },
+            toolUsageControl: true,
+            nativeStructuredOutputs: true,
+            maxOutputTokens: 384000,
+            reasoningEffort: { values: ['none', 'low', 'medium', 'high'] },
+          },
+          contextWindow: 1000000,
+          releaseDate: '2026-09-10',
+        },
+        {
+          id: modelIds[1],
+          pricing: { input: 0.14, cachedInput: 0.07, output: 0.28 },
+          capabilities: {
+            temperature: { min: 0, max: 2 },
+            toolUsageControl: true,
+            nativeStructuredOutputs: true,
+            maxOutputTokens: 384000,
+            reasoningEffort: { values: ['none', 'low', 'medium', 'high'] },
+          },
+          contextWindow: 1000000,
+          releaseDate: '2026-09-09',
+        },
+      ],
+    })
+    expect(getProviderModels('prism')).toEqual(modelIds)
+  })
+
+  it('stays outside the hosted model set', () => {
+    for (const modelId of modelIds) expect(getHostedModels()).not.toContain(modelId)
+  })
+})
+
 describe('isModelDeprecated', () => {
   it('returns true for a catalogued deprecated model (case-insensitive)', () => {
     const id = firstDeprecatedModelId()

apps/sim/providers/models.ts

@@ -26,6 +26,7 @@ import {
   OllamaIcon,
   OpenAIIcon,
   OpenRouterIcon,
+  PrismIcon,
   SakanaIcon,
   TogetherIcon,
   VertexIcon,
@@ -257,6 +258,64 @@ export const PROVIDER_DEFINITIONS: Record<string, ProviderDefinition> = {
     contextInformationAvailable: false,
     models: [],
   },
+  prism: {
+    id: 'prism',
+    name: 'Prism',
+    description: 'Prism provides open-source model inference',
+    defaultModel: 'prism/deepseek-v4.1-flash',
+    modelPatterns: [/^prism\//],
+    icon: PrismIcon,
+    color: '#1F1D1A',
+    isReseller: true,
+    capabilities: {
+      temperature: { min: 0, max: 2 },
+      toolUsageControl: true,
+      nativeStructuredOutputs: true,
+    },
+    contextInformationAvailable: false,
+    models: [
+      {
+        id: 'prism/deepseek-v4.1-flash',
+        pricing: {
+          input: 0.3,
+          cachedInput: 0.07,
+          output: 1.2,
+          updatedAt: '2026-09-12',
+        },
+        capabilities: {
+          temperature: { min: 0, max: 2 },
+          toolUsageControl: true,
+          nativeStructuredOutputs: true,
+          maxOutputTokens: 384000,
+          reasoningEffort: {
+            values: ['none', 'low', 'medium', 'high'],
+          },
+        },
+        contextWindow: 1000000,
+        releaseDate: '2026-09-10',
+      },
+      {
+        id: 'prism/deepseek-v4-flash',
+        pricing: {
+          input: 0.14,
+          cachedInput: 0.07,
+          output: 0.28,
+          updatedAt: '2026-09-12',
+        },
+        capabilities: {
+          temperature: { min: 0, max: 2 },
+          toolUsageControl: true,
+          nativeStructuredOutputs: true,
+          maxOutputTokens: 384000,
+          reasoningEffort: {
+            values: ['none', 'low', 'medium', 'high'],
+          },
+        },
+        contextWindow: 1000000,
+        releaseDate: '2026-09-09',
+      },
+    ],
+  },
   openrouter: {
     id: 'openrouter',
     fileAttachment: { maxBytes: 50 * 1024 * 1024, strategy: 'remote-url' },

apps/sim/providers/openai-compat/streaming-tool-loop.ts

@@ -134,6 +134,7 @@ export function createOpenAICompatStreamingToolLoopStream(
           },
           toolCalls:
             toolCalls.length > 0 ? { list: toolCalls, count: toolCalls.length } : undefined,
+          toolResults: toolResults.length > 0 ? toolResults : undefined,
           modelTime,
           toolsTime,
           firstResponseTime,