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AI · alternatives · 2026

24 alternatives to LLMRouter – first LLM routing library with 300 stars in 24h

LLMRouter: An Open-Source Library for LLM Routing. Contribute to ulab-uiuc/LLMRouter development by creating an account on GitHub.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 3 we have checked on their own sites, 3 of them free or with a free tier.

  1. 1
    FastRouter.aifree tier, from $199/mo▲364

    Route requests to the right LLM for cost, latency & quality

    23d ago · fastrouter.ai · its alternatives →

  2. 2
    LLM Gatewayfree tier▲296

    I built an OpenAI-compatible LLM gateway that routes requests to OpenAI, Anthropic, Ollama, vLLM, llama-server, SGLang... anything that speaks /v1/chat/completions. Single Go binary, one YAML config file, no infrastructure. It does the things you'd expect from this kind of gateway... semantic routing via a three-layer cascade (keyword heuristics, embedding similarity, LLM classifier) that picks the best model when clients omit the model field, weighted round-robin load balancing across local inference servers with health checks and failover. The part I think is most…

    2025 · llmgateway.io · its alternatives →

  3. 3

    Hi HN — we're the team behind Arch (https://github.com/katanemo/archgw), an open-source proxy for LLMs written in Rust. Today we're releasing Arch-Router (https://huggingface.co/katanemo/Arch-Router-1.5B), a 1.5B router model for preference-based routing, now integrated into the proxy. As teams integrate multiple LLMs - each with different strengths, styles, or cost/latency profiles — routing the right prompt to the right model becomes a critical part of the application design. But it's still an open problem. Most routing systems fall into two…

    2025 · its alternatives →

  4. 4

    Hey HN, We've been building a multi-model API for LLMs called OpenRouter since we launched the Window AI extension in April this year [0]. The events of the last week make it clear the LLM landscape is unpredictable, so LLM aggregators are picking up interest. Unlike others, we're making a router on top of a public, explorable dataset. We recently built a way to rank and visualize this data, including the token counts we see going to and from different models, both open-sourced (like Llama, Mistral, finetunes, and variants) and closed-sourced (OpenAI, Anthropic). The API supports - 50+…

    Apr 2026 · openrouter.ai · its alternatives →

  5. 5

    LLM 0.26 is out with the biggest new feature since I started the project: support for tools. You can now use the LLM CLI tool—and Python library—to grant LLMs from …

    2025 · simonwillison.net · its alternatives →

  6. 6RY

    Hey HN, we've just finished building a dynamic router for LLMs, which takes each prompt and sends it to the most appropriate model and provider. We'd love to know what you think! Here is a quick(ish) screen-recroding explaining how it works: https://youtu.be/ZpY6SIkBosE Best results when training a custom router on your own prompt data: https://youtu.be/9JYqNbIEac0 The router balances user preferences for quality, speed and cost. The end result is higher quality and faster LLM responses at lower cost. The quality for each candidate LLM is predicted ahead of time…

    2024 · unify.ai · its alternatives →

  7. 7

    Avoid OpenAI downtimes - one API for 30+ LLMs

    2023 · github.com · its alternatives →

  8. 8

    We built any-llm because we needed a lightweight router for LLM providers with minimal overhead. Switching between models is just a string change : update "openai/gpt-4" to "anthropic/claude-3" and you're done. It uses official provider SDKs when available, which helps since providers handle their own compatibility updates. No proxy or gateway service needed either, so getting started is pretty straightforward - just pip install and import. Currently supports 20+ providers including OpenAI, Anthropic, Google, Mistral, and AWS Bedrock. Would love to hear what you think!

    2025 · github.com · its alternatives →

  9. 9

    us cached road graph, freeways, primary and secondary roads - ivanbelenky/us-routing

    2025 · github.com · its alternatives →

  10. 10

    Headless form handling and lead routing for developers

    2024 · router.so · its alternatives →

  11. 11

    Open-source LLM tracing for agent visibility

    Mar 2026 · breadcrumb.sh · its alternatives →

  12. 12

    Tokens are money. Save both.

    Aug 2026 · router.com · its alternatives →

  13. 13

    Dev tool that worries about your LLM API failures.

    Aug 2026 · llmrouter.dpdns.org · its alternatives →

  14. 14

    Library for interacting with LLVM IR in pure Go. Contribute to llir/llvm development by creating an account on GitHub.

    2017 · github.com · its alternatives →

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  16. 16

    Self-hosted LLM router. Cost effective, deterministic, and fast. Secure and private by default. - Northwood-Systems/millwright

    Jul 2026 · github.com · its alternatives →

  17. 17

    I built this library because langchain was too bloated and I needed a simple abstraction to call multiple LLM APIs. litellm has two functions - completion(), embedding()

    2023 · github.com · its alternatives →

  18. 18
    CustomRouterfree tier, from $7.99/mo

    LLM routing on your terms.

    Mar 2026 · customrouter.ai · its alternatives →

  19. 19

    G'day, HN! I'm one of the maintainers of `llm`. I've been working alongside a trusty group of contributors to bring this project to life, and we're now at a point where we're ready to share it with the world. Large language models (LLMs) are taking the computing world by storm due to their emergent abilities that allow them to perform a wide variety of tasks, including translation, summarization, code generation, and even some degree of reasoning. However, the ecosystem around LLMs is still in its infancy, and it can be difficult to get started with these models. `llm` is a one-stop shop for…

    2023 · github.com · its alternatives →

  20. 20

    Recently featured in a LangChain blog https://blog.langchain.dev/empowering-development-with-flowt... , use LLMs to construct an API first runnable workflow with an IDE experience.

    2024 · github.com · its alternatives →

  21. 21

    Hey HN, With the news of OpenRouter possibly being acquired and proliferation of hosted LLM routers (i.e. Ramp Router, Vercel’s AI Gateway), I saw the need for a self hosted solution focused on cost savings, transparency, and performance. So, I built an open sourced router with a simple CLI interface that can easily sit between coding agents and GenAI workloads. For the curious and lazy, at the moment, Millwright has the tools for, - Providers: OpenAI-compatible APIs, Anthropic, Amazon Bedrock - Routing: policy-controlled model roles (cheap, mid, frontier), cheapest healthy route selection -…

    Jul 2026 · github.com · its alternatives →

  22. 22

    Current AI-assisted CLI tools are often part of larger systems and work better on Linux. I built llm-term to address these. It's a Rust-based tool that compiles into a single binary file. You only need to download the binary, add it to your PATH, and configure your OpenAI key to get started. While llm-term offers an option for gpt-4o, it works great with gpt-4o-mini. So it's not costly. I appreciate any feedback or suggestions.

    2024 · github.com · its alternatives →

  23. 23

    The LLM Anti-Framework. Contribute to Mirascope/mirascope development by creating an account on GitHub.

    Jan 2026 · github.com · its alternatives →

  24. 24DO

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →