feat: Add Cerebras and Fireworks as LLM providers and introduce configurable Whisper providers with dedicated API keys.

Commands/OnboardCommand.cs

@@ -17,16 +17,11 @@ public static class OnboardCommand
         AnsiConsole.MarkupLine("[grey]Welcome to the Toak configuration wizard.[/]");
         AnsiConsole.WriteLine();
 
-        config.GroqApiKey = AnsiConsole.Prompt(
-            new TextPrompt<string>("Groq API Key (required for Whisper):")
-                .DefaultValue(string.IsNullOrWhiteSpace(config.GroqApiKey) ? "" : config.GroqApiKey)
-                .AllowEmpty());
-
         config.LlmProvider = AnsiConsole.Prompt(
             new SelectionPrompt<string>()
                 .Title("Select [green]LLM Provider[/]:")
-                .AddChoices(new[] { "groq", "together" })
+                .AddChoices(new[] { "groq", "together", "cerebras", "fireworks" })
-                .UseConverter(c => c == "groq" ? "Groq (Default)" : "Together AI"));
+                .UseConverter(c => c == "groq" ? "Groq (Default)" : c == "together" ? "Together AI" : c == "cerebras" ? "Cerebras" : "Fireworks AI"));
 
         if (config.LlmProvider == "together")
         {
@@ -40,8 +35,38 @@ public static class OnboardCommand
                     .Title("Select [green]LLM Model[/]:")
                     .AddChoices(new[] { "meta-llama/Llama-3.3-70B-Instruct-Turbo", "meta-llama/Meta-Llama-3.1-8B-Instruct-Turbo", "openai/gpt-oss-20b" }));
         }
+        else if (config.LlmProvider == "cerebras")
+        {
+            config.CerebrasApiKey = AnsiConsole.Prompt(
+                new TextPrompt<string>("Cerebras API Key:")
+                    .DefaultValue(string.IsNullOrWhiteSpace(config.CerebrasApiKey) ? "" : config.CerebrasApiKey)
+                    .AllowEmpty());
+
+            config.LlmModel = AnsiConsole.Prompt(
+                new SelectionPrompt<string>()
+                    .Title("Select [green]LLM Model[/]:")
+                    .AddChoices(new[] { "llama3.1-8b", "gpt-oss-120b" }));
+        }
+        else if (config.LlmProvider == "fireworks")
+        {
+            config.FireworksApiKey = AnsiConsole.Prompt(
+                new TextPrompt<string>("Fireworks API Key:")
+                    .DefaultValue(string.IsNullOrWhiteSpace(config.FireworksApiKey) ? "" : config.FireworksApiKey)
+                    .AllowEmpty());
+
+            config.LlmModel = AnsiConsole.Prompt(
+                new SelectionPrompt<string>()
+                    .Title("Select [green]LLM Model[/]:")
+                    .AddChoices(new[] { "accounts/fireworks/models/deepseek-v3p1", "fireworks/gpt-oss-120b", "fireworks/deepseek-v3p2", "fireworks/qwen3-8b", "fireworks/minimax-m2p5" })
+                    .UseConverter(c => c.Split('/').Last()));
+        }
         else
         {
+            config.GroqApiKey = AnsiConsole.Prompt(
+                new TextPrompt<string>("Groq API Key:")
+                    .DefaultValue(string.IsNullOrWhiteSpace(config.GroqApiKey) ? "" : config.GroqApiKey)
+                    .AllowEmpty());
+
             config.LlmModel = AnsiConsole.Prompt(
                 new SelectionPrompt<string>()
                     .Title("Select [green]LLM Model[/]:")
@@ -57,11 +82,43 @@ public static class OnboardCommand
                 .AddChoices(new[] { "none", "low" })
                 .UseConverter(c => c == "none" ? "None (Standard)" : "Low (Moderate Reasoning)"));
 
-        config.WhisperModel = AnsiConsole.Prompt(
+        config.WhisperProvider = AnsiConsole.Prompt(
             new SelectionPrompt<string>()
-                .Title("Select [green]Whisper Model[/]:")
+                .Title("Select [green]Whisper Provider[/]:")
-                .AddChoices(new[] { "whisper-large-v3", "whisper-large-v3-turbo" })
+                .AddChoices(new[] { "groq", "fireworks" })
-                .UseConverter(c => c == "whisper-large-v3" ? "whisper-large-v3 (Accurate)" : "whisper-large-v3-turbo (Fast)"));
+                .UseConverter(c => c == "groq" ? "Groq (Default)" : "Fireworks AI"));
+
+        if (config.WhisperProvider == "fireworks")
+        {
+            if (string.IsNullOrWhiteSpace(config.FireworksApiKey))
+            {
+                config.FireworksApiKey = AnsiConsole.Prompt(
+                    new TextPrompt<string>("Fireworks API Key (required for Whisper):")
+                        .DefaultValue("")
+                        .AllowEmpty());
+            }
+
+            config.WhisperModel = AnsiConsole.Prompt(
+                new SelectionPrompt<string>()
+                    .Title("Select [green]Whisper Model[/]:")
+                    .AddChoices(new[] { "fireworks/whisper-v3", "fireworks/whisper-v3-turbo" }));
+        }
+        else
+        {
+            if (string.IsNullOrWhiteSpace(config.GroqApiKey))
+            {
+                config.GroqApiKey = AnsiConsole.Prompt(
+                    new TextPrompt<string>("Groq API Key (required for Whisper):")
+                        .DefaultValue("")
+                        .AllowEmpty());
+            }
+
+            config.WhisperModel = AnsiConsole.Prompt(
+                new SelectionPrompt<string>()
+                    .Title("Select [green]Whisper Model[/]:")
+                    .AddChoices(new[] { "whisper-large-v3", "whisper-large-v3-turbo" })
+                    .UseConverter(c => c == "whisper-large-v3" ? "whisper-large-v3 (Accurate)" : "whisper-large-v3-turbo (Fast)"));
+        }
 
         config.WhisperLanguage = AnsiConsole.Prompt(
             new TextPrompt<string>("Microphone Spoken Language (e.g. en, es, zh):")

Configuration/ToakConfig.cs

@@ -4,7 +4,10 @@ public class ToakConfig
 {
     public string GroqApiKey { get; set; } = string.Empty;
     public string TogetherApiKey { get; set; } = string.Empty;
-    public string LlmProvider { get; set; } = "groq"; // groq or together
+    public string CerebrasApiKey { get; set; } = string.Empty;
+    public string FireworksApiKey { get; set; } = string.Empty;
+    public string LlmProvider { get; set; } = "groq"; // groq, together, cerebras, or fireworks
+    public string WhisperProvider { get; set; } = "groq"; // groq or fireworks
     public string TypingBackend { get; set; } = "xdotool"; // wtype or xdotool
     public string AudioBackend { get; set; } = "pw-record"; // pw-record or ffmpeg
     public bool ModulePunctuation { get; set; } = true;

Core/DaemonService.cs

@@ -40,19 +40,31 @@ public static class DaemonService
 
         var configManager = new ConfigManager();
         var config = configManager.LoadConfig();
-        if (string.IsNullOrWhiteSpace(config.GroqApiKey))
+        if (config.WhisperProvider == "groq" && string.IsNullOrWhiteSpace(config.GroqApiKey))
         {
-            Console.WriteLine("Groq API Key is not configured. Run 'toak onboard'.");
+            Console.WriteLine("Groq API Key is not configured for Whisper. Run 'toak onboard'.");
+            return;
+        }
+        if (config.WhisperProvider == "fireworks" && string.IsNullOrWhiteSpace(config.FireworksApiKey))
+        {
+            Console.WriteLine("Fireworks API Key is not configured for Whisper. Run 'toak onboard'.");
             return;
         }
 
         var stateTracker = new StateTracker();
         var notifications = new Notifications();
 
-        var speechClient = new OpenAiCompatibleClient(config.GroqApiKey);
+        ISpeechClient speechClient = config.WhisperProvider == "fireworks"
-        ILlmClient llmClient = config.LlmProvider == "together"
+            ? new OpenAiCompatibleClient(config.FireworksApiKey, "https://api.fireworks.ai/inference/v1/")
-            ? new OpenAiCompatibleClient(config.TogetherApiKey, "https://api.together.xyz/v1/", config.ReasoningEffort)
+            : new OpenAiCompatibleClient(config.GroqApiKey);
-            : new OpenAiCompatibleClient(config.GroqApiKey, "https://api.groq.com/openai/v1/", config.ReasoningEffort);
+
+        ILlmClient llmClient = config.LlmProvider switch
+        {
+            "together" => new OpenAiCompatibleClient(config.TogetherApiKey, "https://api.together.xyz/v1/", config.ReasoningEffort),
+            "cerebras" => new OpenAiCompatibleClient(config.CerebrasApiKey, "https://api.cerebras.ai/v1/", config.ReasoningEffort),
+            "fireworks" => new OpenAiCompatibleClient(config.FireworksApiKey, "https://api.fireworks.ai/inference/v1/", config.ReasoningEffort),
+            _ => new OpenAiCompatibleClient(config.GroqApiKey, "https://api.groq.com/openai/v1/", config.ReasoningEffort)
+        };
 
         IAudioRecorder recorder = config.AudioBackend == "ffmpeg"
             ? new FfmpegAudioRecorder(stateTracker, notifications)