Together AI

Together AI has established itself as one of the premier platforms for running open-source AI models in the cloud. With access to over 200 models — from Llama 4 and DeepSeek V3 to Qwen 3 and Mistral — it serves as a one-stop shop for developers who want the power of open-source models without managing their own GPU infrastructure. The $25 in free starter credits with no credit card required makes it easy to experiment, and the pure pay-per-token pricing means you never pay for idle resources.

What sets Together AI apart from competitors is speed. Their inference infrastructure is consistently benchmarked as one of the fastest in the market, which matters enormously for production applications where latency directly impacts user experience. The pricing is competitive across model sizes, ranging from $0.05 per million tokens for small models to $0.90 for 70B-parameter models. The 50% batch processing discount and 50% cached token discount make it particularly cost-effective for applications with predictable workloads or repeated context windows.

The fine-tuning support is a significant differentiator for teams that need custom models. Together AI supports both LoRA (lightweight) and full fine-tuning, allowing you to adapt any open-source model to your specific use case and then deploy it on their infrastructure. The main limitation is accessibility — Together AI is fundamentally a developer tool that requires API knowledge. There is no ChatGPT-like interface for casual users. For developers and engineering teams building AI-powered applications on open-source models, Together AI delivers the best combination of model selection, speed, and pricing flexibility available today.