Best AI Routing Tool? RouteLLM by Abacus AI Review

Is RouteLLM the smartest way to use AI in 2025?

In this in-depth review, I explore RouteLLM by Abacus AI—a powerful AI routing system that automatically picks the best large language model (LLM) for your specific task. Whether you're writing code, generating marketing copy, answering simple questions, or working with documents, RouteLLM analyzes the complexity of your prompt and routes it to the most appropriate model—like GPT-4o, Claude Sonnet, or Gemini 2.0 Flash.

Unlike GPT-4 or Claude which respond directly, RouteLLM works behind the scenes. Think of it as an intelligent agent that saves you time, reduces costs, and improves results by selecting the right model automatically.

I’ll run real-time examples that show how RouteLLM:

- Picks Claude Sonnet 3.5 for debugging Python
- Selects GPT-4o for creative writing and product descriptions
- Uses Gemini Flash for fast, low-cost queries

All of this is part of Abacus AI’s $10/month ChatLLM Teams plan, which also includes access to CodeLLM, generative image tools, and enterprise AI features.

If you’re serious about productivity and want to stop guessing which model to use, RouteLLM is a game-changer.

Watch the full demo and try it yourself using the link below.

Subscribe to the channel for more reviews on Abacus AI, ChatLLM Teams, and the latest LLM tools.

Timestamps:
00:00 – Introduction to RouteLLM
01:57 – What is RouteLLM?
02:15 – Why routing matters
02:49 – Python debug example (Claude Sonnet 3.5)
03:50 – Creative writing example (GPT-4o)
04:30 – Quick query example (Gemini 2.0 Flash)
05:06 – Why RouteLLM is efficient
05:21 – Abacus AI pricing overview
05:38 – Outro and next steps

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Other Videos About Abacus AI:

[bigjack]

What a time to be alive! AI boom at its fines

[SriSasSa]

I have my subscription already, thanks for more quality tips on Abacus. Love it.

[zatoka]

I would recommend the FFA Short Story Course. Worth every penny. Can easily expand the stories to novellas. The prompts are very good.

[AreejAA-qd]

Hey Ivan, if you haven't looked into the gpt4o new image gen, especially in terms of instruction following, you may be surprised. It's able to do things no other image generators can do. I know text is a big deal, but to me the biggest surprise is how good it is in instructions following (while not being perfect)

[md.sifat.]

So after a few months, what are your thoughts on Chat LLM compared to Global GPT?

[svetaalekseeva]

What do you think about Sonnet 3.7 (new)?? Is it also featured on Abacus?

[What_iffffffff]

What are your thoughts on the Subtxt writing AI?

[HASON_]

Can you use deep seek and show some videos with that model?

[chasingaimie]

Thanks for sharing, wondering if ChatLLM create, post a blog, with images, video. Then from that blog, create multiple social media posts on a scheduler? OMG I’ve been looking for an all in one ai. 🎉

[bimusic]

Thanks for the review. I'm stuck using the free models and sometimes it doesn't follow my chapter instructions. I have my chat llm subscriptions from 2 months ago and really enjoy it. Keep more videos about this tool coming.

[towtow]

Thanks again Ivan. I'm going to experiment with Route LLM. I hope there is a free trial there? Right?

[titofootballstore]

Which is best for spicy Content? I was planning to go GPT Plus but now i am thinking abacus ai might be better. I need to watch other videos on this Ai. I feel like i still need GPT Plus though.

[smakhaled-wt]

Wow another open weight model, also thank you for sharing your thoughts and suggestions.

[bakeradvertismentsagency]

$10 a month and all llms are included?! Give me a break.

[WAn_-gm]

Love all the tools that boost coding and all related to writing assistance things you have, however I'm struggling with actions scenes. Any specific tools you recommend for helping to write action/violence scenes? I'm working on a fantasy horror and am struggling finding something to help with gore scenes :/

[tanjilajamil]

Working on using free tools to learn and build before moving into a more robust program to help me refine. Anyone done this before?

[SergeyProdanov]

Where to get list of models for specific domain for ex. Healthcare am, I unfollowed virtually all the AI channels, because they're just selling hype, but I know when you post, its worth my time. Keep it up, great work my friend.

[maznali-ik]

Hi there! Thanks for all the info you share here. Could you please also share what camera model are you using? Excellent quality! Stay cool! ANd keep it up.

[Sulikan-mv]

Can you tie a free model in LM Studio to Abacus AI, to run everything for free/locally?

[paulobc]

Great video. What did you use to create the intro disclaimer? I´ve been looking for this type of resolution for some time.