Add Cerebras fast rewording provider

app/src/test/kotlin/dev/patrickgold/florisboard/dictate/ProviderRegistryTest.kt

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2026 DevEmperor (Dictate)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+package dev.patrickgold.florisboard.dictate
+
+import dev.patrickgold.florisboard.dictate.provider.ProviderRegistry
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertFalse
+import kotlin.test.assertNotNull
+import kotlin.test.assertTrue
+
+class ProviderRegistryTest {
+
+    @Test
+    fun cerebrasIsAvailableAsFastRewordingProvider() {
+        val preset = assertNotNull(ProviderRegistry.byId("cerebras"))
+
+        assertEquals("Cerebras", preset.displayName)
+        assertEquals("https://api.cerebras.ai/v1/", preset.baseUrl)
+        assertEquals("https://cloud.cerebras.ai/", preset.apiKeyUrl)
+        assertTrue(preset.capabilities.chat)
+        assertFalse(preset.capabilities.transcription)
+        assertTrue(preset.supportsDynamicModels)
+        assertEquals("gemma-4-31b", preset.defaultChatModel)
+        assertTrue("gemma-4-31b" in preset.curatedChatModels)
+        assertTrue(preset in ProviderRegistry.presets)
+    }
+}

lib/dictate-core/src/main/kotlin/dev/patrickgold/florisboard/dictate/provider/OpenAiCompatibleClient.kt

@@ -39,8 +39,8 @@ import javax.net.ssl.X509TrustManager
 
 /**
  * A single client implementation that talks to any OpenAI Chat Completions / Audio Transcriptions
- * compatible endpoint. This one class covers OpenAI, Groq, OpenRouter, Together, DeepInfra, Mistral,
- * xAI, DeepSeek, local Ollama and arbitrary custom servers – they only differ by base URL, key and
+ * compatible endpoint. This one class covers OpenAI, Groq, Cerebras, OpenRouter, Together, DeepInfra,
+ * Mistral, xAI, DeepSeek, local Ollama and arbitrary custom servers – they only differ by base URL, key and
  * a few headers (see [ProviderRegistry] and [ProviderConfig]).
  *
  * Google Gemini is also handled here: chat/rewording goes through its OpenAI-compatible layer

lib/dictate-core/src/main/kotlin/dev/patrickgold/florisboard/dictate/provider/ProviderRegistry.kt

@@ -109,6 +109,24 @@ object ProviderRegistry {
         ),
     )
 
+    /**
+     * Cerebras Inference is chat-only here. Its OpenAI-compatible API is a strong fit for
+     * low-latency cleanup prompts after dictation; Gemma 4 31B is the fast default suggested for
+     * punctuation, filler-word removal and light grammar correction.
+     */
+    val CEREBRAS = ProviderPreset(
+        id = "cerebras",
+        displayName = "Cerebras",
+        baseUrl = "https://api.cerebras.ai/v1/",
+        capabilities = CHAT_ONLY,
+        supportsDynamicModels = true,
+        apiKeyUrl = "https://cloud.cerebras.ai/",
+        defaultChatModel = "gemma-4-31b",
+        curatedChatModels = listOf(
+            "gemma-4-31b", "gpt-oss-120b", "zai-glm-4.7",
+        ),
+    )
+
     val OPENROUTER = ProviderPreset(
         id = "openrouter",
         displayName = "OpenRouter",
@@ -376,7 +394,7 @@ object ProviderRegistry {
 
     /** All built-in presets in display order. The custom option is added by the UI on top of these. */
     val presets: List<ProviderPreset> = listOf(
-        OPENAI, GROQ, OPENROUTER, GEMINI, ANTHROPIC, TOGETHER, DEEPINFRA, MISTRAL, SONIOX,
+        OPENAI, GROQ, CEREBRAS, OPENROUTER, GEMINI, ANTHROPIC, TOGETHER, DEEPINFRA, MISTRAL, SONIOX,
         ELEVENLABS, DEEPGRAM, ASSEMBLYAI, XAI, DEEPSEEK, OLLAMA, LOCAL,
     )