diff --git a/Sources/Fluid/Services/ExternalCoreMLModelRegistry.swift b/Sources/Fluid/Services/ExternalCoreMLModelRegistry.swift
index 0e99c0a7..bacd5819 100644
--- a/Sources/Fluid/Services/ExternalCoreMLModelRegistry.swift
+++ b/Sources/Fluid/Services/ExternalCoreMLModelRegistry.swift
@@ -28,8 +28,6 @@ enum ExternalCoreMLArtifactsValidationError: LocalizedError {
     case manifestUnreadable(URL, Error)
     case unexpectedModelID(expected: String, actual: String)
     case unexpectedSampleRate(expected: Int, actual: Int)
-    case unexpectedMaxAudioSamples(expected: Int, actual: Int)
-    case unexpectedMaxAudioSeconds(expected: Double, actual: Double)
 
     var errorDescription: String? {
         switch self {
@@ -43,10 +41,6 @@ enum ExternalCoreMLArtifactsValidationError: LocalizedError {
             return "Unexpected model_id '\(actual)'. Expected '\(expected)'."
         case let .unexpectedSampleRate(expected, actual):
             return "Unexpected sample rate \(actual). Expected \(expected)."
-        case let .unexpectedMaxAudioSamples(expected, actual):
-            return "Unexpected max audio samples \(actual). Expected \(expected)."
-        case let .unexpectedMaxAudioSeconds(expected, actual):
-            return "Unexpected max audio seconds \(actual). Expected \(expected)."
         }
     }
 }
@@ -62,8 +56,6 @@ struct ExternalCoreMLASRModelSpec {
     let cachedDecoderFileName: String
     let expectedModelID: String
     let expectedSampleRate: Int
-    let expectedMaxAudioSamples: Int
-    let expectedMaxAudioSeconds: Double
     let computeConfiguration: CohereTranscribeComputeConfiguration
     let sourceURL: URL?
     let repositoryOwner: String?
@@ -137,20 +129,6 @@ struct ExternalCoreMLASRModelSpec {
                 actual: manifest.sampleRate
             )
         }
-
-        guard manifest.maxAudioSamples == self.expectedMaxAudioSamples else {
-            throw ExternalCoreMLArtifactsValidationError.unexpectedMaxAudioSamples(
-                expected: self.expectedMaxAudioSamples,
-                actual: manifest.maxAudioSamples
-            )
-        }
-
-        guard manifest.maxAudioSeconds == self.expectedMaxAudioSeconds else {
-            throw ExternalCoreMLArtifactsValidationError.unexpectedMaxAudioSeconds(
-                expected: self.expectedMaxAudioSeconds,
-                actual: manifest.maxAudioSeconds
-            )
-        }
     }
 }
 
@@ -169,8 +147,6 @@ enum ExternalCoreMLModelRegistry {
                 cachedDecoderFileName: "cohere_decoder_cached.mlpackage",
                 expectedModelID: "CohereLabs/cohere-transcribe-03-2026",
                 expectedSampleRate: 16_000,
-                expectedMaxAudioSamples: 560_000,
-                expectedMaxAudioSeconds: 35.0,
                 computeConfiguration: .aneSmall,
                 sourceURL: URL(string: "https://huggingface.co/BarathwajAnandan/cohere-transcribe-03-2026-CoreML-6bit"),
                 repositoryOwner: "BarathwajAnandan",
diff --git a/Sources/Fluid/Services/ExternalCoreMLTranscriptionProvider.swift b/Sources/Fluid/Services/ExternalCoreMLTranscriptionProvider.swift
index 115bda27..34a12df0 100644
--- a/Sources/Fluid/Services/ExternalCoreMLTranscriptionProvider.swift
+++ b/Sources/Fluid/Services/ExternalCoreMLTranscriptionProvider.swift
@@ -58,6 +58,7 @@ final class ExternalCoreMLTranscriptionProvider: TranscriptionProvider {
         case .cohereTranscribe:
             let manager = CohereTranscribeAsrManager()
             progressHandler?(0.9)
+            try self.invalidateCompiledCohereCacheIfNeeded(at: directory)
             let computeSummary = [
                 String(describing: spec.computeConfiguration.frontend),
                 String(describing: spec.computeConfiguration.encoder),
@@ -65,11 +66,12 @@ final class ExternalCoreMLTranscriptionProvider: TranscriptionProvider {
                 String(describing: spec.computeConfiguration.decoder),
             ].joined(separator: "/")
             DebugLogger.shared.info(
-                "ExternalCoreML: loading Cohere models [splitCompute=\(computeSummary), maxAudioSamples=\(self.loadedManifest?.maxAudioSamples ?? spec.expectedMaxAudioSamples)]",
+                "ExternalCoreML: loading Cohere models [splitCompute=\(computeSummary), maxAudioSamples=\(self.loadedManifest?.maxAudioSamples ?? 0)]",
                 source: "ExternalCoreML"
             )
             try await manager.loadModels(from: directory, computeConfiguration: spec.computeConfiguration)
             self.cohereManager = manager
+            self.persistCompiledCohereCacheStamp(at: directory)
         }
 
         self.isReady = true
@@ -274,6 +276,48 @@ final class ExternalCoreMLTranscriptionProvider: TranscriptionProvider {
         )
     }
 
+    private func invalidateCompiledCohereCacheIfNeeded(at directory: URL) throws {
+        guard let manifest = self.loadedManifest else { return }
+
+        let compiledDirectory = CohereTranscribeAsrModels.compiledArtifactsDirectory(for: directory)
+        guard FileManager.default.fileExists(atPath: compiledDirectory.path) else { return }
+
+        let currentStamp = Self.compiledCohereCacheStamp(for: manifest)
+        let stampURL = Self.compiledCohereCacheStampURL(for: directory)
+        let previousStamp = try? String(contentsOf: stampURL, encoding: .utf8)
+            .trimmingCharacters(in: .whitespacesAndNewlines)
+
+        guard previousStamp != currentStamp else { return }
+
+        let reason = previousStamp == nil ? "missing cache stamp" : "manifest changed"
+        DebugLogger.shared.warning(
+            "ExternalCoreML: clearing stale compiled Cohere cache [reason=\(reason)]",
+            source: "ExternalCoreML"
+        )
+        try FileManager.default.removeItem(at: compiledDirectory)
+    }
+
+    private func persistCompiledCohereCacheStamp(at directory: URL) {
+        guard let manifest = self.loadedManifest else { return }
+        let stampURL = Self.compiledCohereCacheStampURL(for: directory)
+        let stamp = Self.compiledCohereCacheStamp(for: manifest)
+        try? stamp.write(to: stampURL, atomically: true, encoding: .utf8)
+    }
+
+    private static func compiledCohereCacheStampURL(for directory: URL) -> URL {
+        directory.appendingPathComponent(".cohere_compiled_cache_stamp", isDirectory: false)
+    }
+
+    private static func compiledCohereCacheStamp(for manifest: ExternalCoreMLManifestIdentity) -> String {
+        [
+            manifest.modelID,
+            String(manifest.sampleRate),
+            String(manifest.maxAudioSamples),
+            String(manifest.maxAudioSeconds),
+            String(manifest.overlapSamples ?? 0),
+        ].joined(separator: "|")
+    }
+
     private func previewSamples(for samples: [Float]) -> [Float] {
         let sampleRate = self.loadedManifest?.sampleRate
             ?? (self.modelOverride ?? SettingsStore.shared.selectedSpeechModel).externalCoreMLSpec?.expectedSampleRate