flo2 is described as 'Cloud LLM gateway that routes one OpenAI- and Anthropic-compatible API key to many model providers, adding no token markup while handling smart routing, fallback, racing, A/B testing and per-call cost tracking' and is an app in the development category. There are eight alternatives to flo2 for a variety of platforms, including Web-based, Mac, Windows, Linux and Self-Hosted apps. The best flo2 alternative is OpenRouter, which is free. Other great apps like flo2 are Echo by Tracer, liteLLM, OpenAdapter and Experiential.
OpenRouter is an AI model aggregator service that provides developers and users access to a wide range of large language models and generative 3D object models through a unified API. It allows users to interact with various AI models, including those from major providers like...
Echo combines specialist open-weight models into one system, allocating compute where it improves the result.
Python SDK, Proxy Server (LLM Gateway) to call 100+ LLM APIs in OpenAI format - [Bedrock, Azure, OpenAI, VertexAI, Cohere, Anthropic, Sagemaker, HuggingFace, Replicate, Groq].
OpenAdapter is an AI gateway sold as a flat subscription. One API key gets you 40+ open-source models (DeepSeek, Qwen, Kimi, GLM, MiniMax, Mistral, Llama) plus web search, OCR, vision, embeddings and a vector DB. Works with Cursor, VS Code, Claude Code, Zed and any OpenAI-compatible app.
One API key for every model: hosted providers, your own keys, your own GPUs. Routing, access control, and attribution for everything your agents call.
Self-hosted peer-to-peer routing layer that routes AI inference requests across an open market of independent providers instead of a central aggregator.
TokenDos is an AI model Token sharing platform connecting idle API key providers with consumers. Supports OpenAI, Anthropic, Claude Code, Codex. Pay-per-token. Low-cost access to Claude Fable 5, Opus 4.8, GPT 5.6 and more.
AI security and financial operations gateway offering routing across major LLM providers, granular budget and access controls by team, real-time traffic monitoring, response evaluation, and automated enforcement. Requires minimal code change and uses flat monthly billing.
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