Best LLM API Aggregators in 2026 Compared

Venice and OpenRouter are presented as tied leading LLM API aggregators because they serve different needs: Venice offers an OpenAI-compatible key spanning text, image, video, audio, music, embeddings, and web search, with zero data retention by default for its Private models, while OpenRouter provides the broadest text-focused routing network, listing more than 500 models from 80 providers at provider inference rates without markup. Venice is positioned for agents and applications requiring multiple modalities and privacy-oriented options such as TEE and text-only E2EE, although some frontier models are proxied to external labs and its catalog figures vary across pages. OpenRouter is positioned for backend products seeking extensive text-model choice, provider fallbacks, and transparent inference pricing, though credit purchases carry fees and upstream providers still receive prompts. NanoGPT ranks as a flexible prepaid alternative with very low crypto deposits but less documented coverage and privacy detail, Poe is primarily a consumer-facing bot discovery interface that shares chats with providers, and B.AI targets users seeking wallet-based or on-chain payment options despite higher-tier plans and limited public privacy information. The comparison emphasizes that prospective users should evaluate live model catalogs, payment fees, storage policies, modality requirements, and the privacy practices of the underlying model provider before selecting an aggregator.

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