Models/Clients To Add

[parsehex]

Across all of the AI types we currently support, I'd like to add these models or client/whatever:

• LLM/DeepInfra client: DI has pretty cheap pricing, though they're lacking in model selection and they don't have many inference options (temperature, top_p and the other very common ones)
• LLM/MistralAI client: Using Mistral's API platform
• TTS/StyleTTS2 client: Use this Python package
• TTS/ElevenLabs client
• TTS/OpenAI client: OpenAI's voices are quite good, on-par with 11Labs
• STT/OpenAI client: Allow using OpenAI's hosted Whisper model (there's supposed to be no quality difference between official and open source Whisper)
• Img/DALL-E 3 client (call it openai for consistency?)