feat(providers): add Meta Muse Spark 1.1 provider (#5538)

* feat(providers): add Meta Muse Spark 1.1 provider

- New BYOK-only meta provider for Meta's Model API (launched today)
- muse-spark-1.1: 1M context, streaming, tool-calling, reasoning_effort
  (minimal->xhigh), structured output
- Meta icon mark only (no wordmark), theme-safe gradient IDs via useId()
- Not added to hosted models list - BYOK only, no auto-billing

* fix(providers): stop sending unsupported tool_choice values to Meta

Meta's Chat Completions endpoint only supports tool_choice: "auto" -
"none", "required", and named-function choices all return HTTP 400
(confirmed against the official meta-model-cookbook tool-calling
recipe). Never set tool_choice on the request (auto is already the
default; forced-tool usage control degrades gracefully to auto with a
warning log instead of failing every tool-using run), and drop `tools`
entirely from the two post-tool-loop tool-free completion calls
instead of trying to force tool_choice: "none".

Author: waleedlatif1

apps/sim/components/icons.tsx

@@ -3687,6 +3687,62 @@ export const SakanaIcon = (props: SVGProps<SVGSVGElement>) => (
   </svg>
 )
 
+export function MetaIcon(props: SVGProps<SVGSVGElement>) {
+  const id = useId()
+  const gradient1Id = `meta_gradient_1_${id}`
+  const gradient2Id = `meta_gradient_2_${id}`
+
+  return (
+    <svg
+      {...props}
+      height='1em'
+      viewBox='0 0 265 165'
+      width='1em'
+      xmlns='http://www.w3.org/2000/svg'
+    >
+      <title>Meta</title>
+      <defs>
+        <linearGradient
+          id={gradient1Id}
+          x1='61'
+          x2='259'
+          y1='117'
+          y2='127'
+          gradientUnits='userSpaceOnUse'
+        >
+          <stop offset='0' stopColor='#0064e1' />
+          <stop offset='0.4' stopColor='#0064e1' />
+          <stop offset='0.83' stopColor='#0073ee' />
+          <stop offset='1' stopColor='#0082fb' />
+        </linearGradient>
+        <linearGradient
+          id={gradient2Id}
+          x1='45'
+          x2='45'
+          y1='139'
+          y2='66'
+          gradientUnits='userSpaceOnUse'
+        >
+          <stop offset='0' stopColor='#0082fb' />
+          <stop offset='1' stopColor='#0064e0' />
+        </linearGradient>
+      </defs>
+      <path
+        d='m31.06,125.96c0,10.98 2.41,19.41 5.56,24.51 4.13,6.68 10.29,9.51 16.57,9.51 8.1,0 15.51-2.01 29.79-21.76 11.44-15.83 24.92-38.05 33.99-51.98l15.36-23.6c10.67-16.39 23.02-34.61 37.18-46.96 11.56-10.08 24.03-15.68 36.58-15.68 21.07,0 41.14,12.21 56.5,35.11 16.81,25.08 24.97,56.67 24.97,89.27 0,19.38-3.82,33.62-10.32,44.87-6.28,10.88-18.52,21.75-39.11,21.75l0-31.02c17.63,0 22.03-16.2 22.03-34.74 0-26.42-6.16-55.74-19.73-76.69-9.63-14.86-22.11-23.94-35.84-23.94-14.85,0-26.8,11.2-40.23,31.17-7.14,10.61-14.47,23.54-22.7,38.13l-9.06,16.05c-18.2,32.27-22.81,39.62-31.91,51.75-15.95,21.24-29.57,29.29-47.5,29.29-21.27,0-34.72-9.21-43.05-23.09-6.8-11.31-10.14-26.15-10.14-43.06z'
+        fill='#0081fb'
+      />
+      <path
+        d='m24.49,37.3c14.24-21.95 34.79-37.3 58.36-37.3 13.65,0 27.22,4.04 41.39,15.61 15.5,12.65 32.02,33.48 52.63,67.81l7.39,12.32c17.84,29.72 27.99,45.01 33.93,52.22 7.64,9.26 12.99,12.02 19.94,12.02 17.63,0 22.03-16.2 22.03-34.74l27.4-.86c0,19.38-3.82,33.62-10.32,44.87-6.28,10.88-18.52,21.75-39.11,21.75-12.8,0-24.14-2.78-36.68-14.61-9.64-9.08-20.91-25.21-29.58-39.71l-25.79-43.08c-12.94-21.62-24.81-37.74-31.68-45.04-7.39-7.85-16.89-17.33-32.05-17.33-12.27,0-22.69,8.61-31.41,21.78z'
+        fill={`url(#${gradient1Id})`}
+      />
+      <path
+        d='m82.35,31.23c-12.27,0-22.69,8.61-31.41,21.78-12.33,18.61-19.88,46.33-19.88,72.95 0,10.98 2.41,19.41 5.56,24.51l-26.48,17.44c-6.8-11.31-10.14-26.15-10.14-43.06 0-30.75 8.44-62.8 24.49-87.55 14.24-21.95 34.79-37.3 58.36-37.3z'
+        fill={`url(#${gradient2Id})`}
+      />
+    </svg>
+  )
+}
+
 export function GeminiIcon(props: SVGProps<SVGSVGElement>) {
   const id = useId()
   const gradientId = `gemini_gradient_${id}`

apps/sim/lib/tokenization/constants.ts

@@ -61,6 +61,11 @@ export const TOKENIZATION_CONFIG = {
       confidence: 'medium',
       supportedMethods: ['heuristic', 'fallback'],
     },
+    meta: {
+      avgCharsPerToken: 4,
+      confidence: 'medium',
+      supportedMethods: ['heuristic', 'fallback'],
+    },
     ollama: {
       avgCharsPerToken: 4,
       confidence: 'low',

apps/sim/providers/attachments.ts

@@ -36,6 +36,7 @@ export type AttachmentProvider =
   | 'deepseek'
   | 'cerebras'
   | 'sakana'
+  | 'meta'
 
 export interface PreparedProviderAttachment {
   file: UserFile
@@ -119,7 +120,12 @@ const BEDROCK_DOCUMENT_FORMATS = new Set([
 const BEDROCK_IMAGE_FORMATS = new Set(['png', 'jpeg', 'jpg', 'gif', 'webp'])
 const BEDROCK_VIDEO_FORMATS = new Set(['mp4', 'mov', 'mkv', 'webm'])
 
-const UNSUPPORTED_FILE_PROVIDERS = new Set<AttachmentProvider>(['deepseek', 'cerebras', 'sakana'])
+const UNSUPPORTED_FILE_PROVIDERS = new Set<AttachmentProvider>([
+  'deepseek',
+  'cerebras',
+  'sakana',
+  'meta',
+])
 
 const PROVIDER_SUPPORTED_LABELS: Record<AttachmentProvider, string> = {
   openai: 'images and documents through the Responses API input_image/input_file parts',
@@ -139,6 +145,7 @@ const PROVIDER_SUPPORTED_LABELS: Record<AttachmentProvider, string> = {
   deepseek: 'no file attachments in the current API adapter',
   cerebras: 'no file attachments in the current API adapter',
   sakana: 'no file attachments in the current API adapter',
+  meta: 'no file attachments in the current API adapter',
 }
 
 export function getAttachmentProvider(providerId: ProviderId | string): AttachmentProvider | null {
@@ -159,6 +166,7 @@ export function getAttachmentProvider(providerId: ProviderId | string): Attachme
   if (providerId === 'deepseek') return 'deepseek'
   if (providerId === 'cerebras') return 'cerebras'
   if (providerId === 'sakana') return 'sakana'
+  if (providerId === 'meta') return 'meta'
   return null
 }
 
@@ -307,6 +315,7 @@ function isMimeTypeSupportedByProvider(
     case 'deepseek':
     case 'cerebras':
     case 'sakana':
+    case 'meta':
       return false
     default: {
       const _exhaustive: never = provider