CometAPI Unified API

OpenAI-compatible REST API exposing chat completions, embeddings, image generation, video generation, speech synthesis, and audio transcription across hundreds of upstream models. Authentication uses a bearer token, and the `model` field on each request selects the upstream provider (e.g. gpt-5.5, claude-4-7-opus, gemini-2.5-pro, deepseek-v4, sora, veo, kling, whisper).