Updated March 10, 2026
Novita AI provides affordable API access to open-source AI models including LLMs, image generation, and video models. The platform offers competitive pricing on popular models like Llama, Mistral, and Stable Diffusion, with pay-per-use billing and no minimum commitments.
Vast.ai is a decentralized GPU marketplace that connects GPU owners with AI developers, offering some of the lowest prices in the market through auction-based pricing. The platform provides access to a wide range of GPUs from consumer-grade to data center hardware for training, fine-tuning, and inference workloads.
What each tool does well, and the limitations to keep in mind.
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Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 1,000+ models through one gateway.
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