Master Together AI with our step-by-step tutorial, detailed feature walkthrough, and expert tips.
Sign up for Together AI account and obtain API key from the dashboard for immediate access to the platform Replace OpenAI base URL with api.together.xyz in existing code while keeping the same OpenAI SDK and request format Select optimal open
source model for your use case and test performance comparing different model sizes and capabilities Implement fine
tuning if needed for specialized tasks or quality improvements using the platform's managed training infrastructure
💡 Quick Start: Follow these 3 steps in order to get up and running with Together AI quickly.
Explore the key features that make Together AI powerful for ai models workflows.
OpenAI-compatible API providing access to 100+ open-source models with automatic scaling, optimized kernels, and 2-4x faster performance than generic cloud infrastructure.
Drop-in replacement for OpenAI API to reduce costs by 5-20x while maintaining functionality for AI applications and agents.
Production-ready fine-tuning infrastructure supporting LoRA, QLoRA, and full fine-tuning with automatic deployment and hyperparameter optimization.
Create specialized models that outperform larger general models on specific tasks while being dramatically more cost-effective to run.
Reserved GPU clusters providing guaranteed capacity, sub-100ms latency SLAs, and isolated compute resources for mission-critical workloads.
Production applications requiring consistent performance, custom model hosting, and enterprise-grade reliability and security.
Runtime learning accelerators that dynamically optimize model serving to achieve up to 4x faster inference and 60% cost reduction.
Maximizing performance and minimizing costs for high-volume inference workloads through intelligent optimization.
Cost-effective processing of massive workloads up to 30 billion tokens asynchronously with up to 50% cost savings compared to real-time inference.
Large-scale data processing, model evaluation, and batch prediction tasks where latency is less critical than cost efficiency.
Self-service access to GPU clusters from single devices to thousands of units, optimized with Together Kernel Collection for superior AI workload performance.
Training custom models, running large-scale inference, and developing AI applications with flexible, high-performance compute resources.
Together AI provides access to open-source models (Llama, Mistral, DeepSeek) through an OpenAI-compatible API. Key advantages include 5-20x lower costs per token, faster inference speeds through custom optimizations, and access to specialized models. The tradeoff is that even the best open-source models may lag behind GPT-4 on complex reasoning tasks, though the gap is rapidly narrowing with models like Llama 3.3 and DeepSeek-V3.
Yes, Together AI implements OpenAI-compatible function calling across supported models including Llama, Mistral, and other major families. The implementation uses the same tools/function_call API format, so existing agent code using OpenAI SDK works with minimal changes. Function calling quality varies by model size - larger models (70B+) generally produce more reliable tool calls than smaller ones.
Yes, Together AI provides comprehensive fine-tuning capabilities for customizing open-source models on your data. You can fine-tune Llama, Mistral, and other supported base models using instruction tuning, domain adaptation, or full fine-tuning. The platform supports advanced techniques like LoRA and QLoRA for efficient training. Fine-tuned models are automatically deployed for inference through the same API with usage-based pricing.
Dedicated endpoints provide reserved GPU capacity with guaranteed performance and sub-100ms latency SLAs. They're ideal for production applications requiring consistent performance, high-volume workloads, or custom model hosting. Unlike serverless inference which shares resources, dedicated endpoints give you isolated infrastructure. Pricing is based on hourly GPU reservations rather than per-token usage.
Together AI offers 99.9% uptime SLA on dedicated endpoints and maintains high availability on serverless infrastructure. The platform is SOC 2 Type II certified with enterprise security features. For mission-critical applications, dedicated endpoints provide the most reliable option with guaranteed capacity and consistent performance. Enterprise plans include priority support and custom SLAs.
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Tutorial updated March 2026