Together AI is an AI-native cloud platform that provides fast, cost-effective serverless inference, fine-tuning, and GPU clusters for over 200 open-source and specialized models. The platform is powered by the Together Inference Stack, which delivers 4x faster inference than vLLM and up to 11x lower cost than GPT-4o when running models like Llama 3.3 70B. Together AI supports a comprehensive range of AI workloads including text generation with models from DeepSeek, Llama, Qwen, and Mistral; image generation with FLUX and Google Imagen 4.0; video generation with Sora 2 and Seedance; and real-time speech with WebSocket APIs for lowest-latency interactive applications. The fine-tuning platform enables developers to train open-source models with proprietary data using LoRA or full fine-tuning, creating task-specific models at a fraction of the cost. For larger-scale needs, Together AI operates a global fleet of data centers featuring NVIDIA GB200 NVL72 and GB300 NVL72 hardware, offering instant GPU clusters with Kubernetes or Slurm orchestration, InfiniBand networking, and free network ingress/egress. The enterprise platform supports deployment in any environment with SOC 2 compliance, dedicated endpoints, and custom SLAs. Together AI has become a go-to platform for developers and enterprises seeking high-performance inference at competitive prices.