EP 20 5 min with Stella & Liam

Can You Run an AI Agent Locally? Nemotron 3.5 Bolt Explained

NVIDIA just shipped Nemotron 3.5 Bolt, a 74 billion parameter open model squeezed into 24 GB so AI agents can run on your own machine.

AI Stella and Liam are AI hosts with AI-generated voices. About our AI hosts

Key takeaways

  1. Nemotron 3.5 Bolt 74B-A9B has 74 billion parameters with about 9 billion active per step, and 2-bit quantization fits it in 24 GB.
  2. It runs on GeForce RTX PCs, DGX Spark, DGX Station and RTX PRO workstations, with llama.cpp, Ollama, LM Studio and vLLM.
  3. NVIDIA says it ranks first among open models in its class on PinchBench and second on BrowseComp. Those are vendor-reported numbers.
  4. On the Artificial Analysis Intelligence Index it scores 21, against 26 for Super VL and 58 for the top model, so treat it as a local worker, not your main brain.
  5. Try it with one small real job, compare against your cloud model, and cap the agent's steps while you test.

Show notes

NVIDIA just shipped Nemotron 3.5 Bolt, a 74 billion parameter open model squeezed into 24 GB so AI agents can run on your own machine. In this episode of Agentic Pod, Liam and Stella cover what Bolt is, why only about 9 billion parameters are active, how to try it step by step with Ollama, LM Studio, llama.cpp or vLLM, what to use it for, the gotchas, and an honest verdict. Benchmark numbers are NVIDIA’s own unless noted.

What we cover:

  • What Nemotron 3.5 Bolt is: 74B total, about 9B active, 2-bit quantization, 24 GB
  • Bolt versus Super VL (the server model) and the small Bolt E4B
  • How good it is: PinchBench, BrowseComp and the Artificial Analysis index (21 vs 58 for the top model)
  • How to try it in four steps: hardware, runtime, model file, local endpoint
  • What to use it for, and what to leave to a cloud model
  • Gotchas: 2-bit accuracy, memory, vendor numbers and looping agents
  • Our honest verdict

Chapters

Questions answered in this episode

What is Nemotron 3.5 Bolt?

An open NVIDIA model for local AI agents: 74 billion parameters in total, about 9 billion active per step, quantized to 2 bits so it fits in 24 GB of memory.

What hardware do I need?

A 24 GB GPU such as an RTX class card, or a DGX Spark or DGX Station.

How do I run it locally?

Pick a runtime (Ollama, LM Studio, llama.cpp or vLLM), download the Bolt build from Hugging Face, serve it locally and point your agent tool at the local OpenAI compatible endpoint.

Is it as good as cloud models?

No. The Artificial Analysis index scores it 21 against 58 for the top model, so use it for routine and private work and keep a cloud model for hard tasks.

Links & resources

Full transcript

Intro

Liam

Hey hey hey, welcome to Agentic Pod! I'm Liam.

Stella

And I'm Stella! Liam, NVIDIA just shipped a 74 billion parameter model that fits in 24 gigabytes. Is that a typo?

Liam

Not a typo. It's Nemotron 3.5 Bolt, and it's built to run AI agents on your own machine. Today: what it is, how to try it, and where it falls short.

Stella

Good. My cloud bill and I need to talk.

Liam

Let's go.

What Bolt actually is

Stella

Okay, 74 billion in 24 gigabytes. How?

Liam

Two tricks. First, it's a mixture of experts model. Only about nine billion parameters are active for each step. That's what the A9B in the name means.

Stella

And the second?

Liam

Two-bit quantization. The weights are squeezed down hard, so the whole thing fits in 24 gigabytes of memory.

Stella

Which is a gaming card, right?

Liam

Yep, an RTX class PC works, and so do DGX Spark and DGX Station. NVIDIA aims it at local research, web browsing, coding and debugging.

Stella

And there's another Nemotron, right? I saw a 120 billion one.

Liam

Super VL. That's the server model. It's not for your desk.

Stella

Okay, so Bolt is the desk one. How good is it?

How good is it, really

Liam

Here's NVIDIA's claim. Bolt ranks first among open models in its class on PinchBench, and second on BrowseComp.

Stella

BrowseComp is the web browsing one?

Liam

Yeah, it tests whether an agent can dig answers out of the web. But those numbers come from NVIDIA, so treat them as vendor reported.

Stella

Is there anything independent?

Liam

The Decoder cites the Artificial Analysis Intelligence Index. Bolt scores 21. Super VL scores 26. The top model on that list scores 58.

Stella

Ouch. So it's not replacing the big cloud models.

Liam

Right. Think of it as a local worker, not your main brain. Routine tasks, private files, offline work.

Stella

What counts as routine?

Liam

Triaging a folder of notes. Drafting commit messages. A first-pass code review. Jobs where a miss is cheap and you can check the result.

Stella

And the hard ones?

Liam

Send those to a bigger cloud model. Local for the boring stuff, cloud for the brain surgery.

Stella

Okay, I want to try it. Where do I start?

How to try it

Liam

Step one, check your memory. You want a 24 gigabyte card or a DGX Spark.

Stella

Step two?

Liam

Pick a runtime. Bolt works with llama.cpp, Ollama, LM Studio and vLLM. If you've never done this, start with Ollama or LM Studio.

Stella

And the model file?

Liam

Step three. It's on Hugging Face. Download the Bolt build your runtime supports.

Stella

Then what, I chat with it in a terminal?

Liam

You can. But the useful part is the local server. These runtimes can serve a local, OpenAI compatible endpoint. So you point your agent tool at that address instead of a cloud one.

Stella

So my agent doesn't know the difference.

Liam

Mostly, yeah. Step four, give it one small real job. Summarise a repo. Fix one failing test. Compare the result with your cloud model.

Stella

And if it's bad?

Liam

Then you learned that for free. Want the gotchas?

Gotchas, who it's for, and the verdict

Liam

Gotcha one. Two-bit quantization trades accuracy for size, so expect misses on hard tasks. Gotcha two. Long contexts eat memory, so test your real prompt sizes.

Stella

And gotcha three is the vendor numbers.

Liam

Yep. Run your own test before you trust any leaderboard. And gotcha four. Agents run in loops, so one bad step can repeat. Cap the number of steps while you test.

Stella

Good one. Because a loop on my own GPU still heats my room.

Liam

Fair.

Stella

So who is this for?

Liam

People with sensitive files, people working offline, and anyone tired of paying per token for routine agent work.

Stella

And the small one? You said there's a 4 gigabyte one.

Liam

Bolt E4B. It's aimed at voice assistants and device interfaces, and NVIDIA says it's coming later this month. Not shipped yet.

Stella

Okay, verdict time.

Liam

Honest verdict. Bolt is a real step for local agents, a 74 billion model on one 24 gigabyte card. Use it for routine and private work, keep a cloud model for the hard stuff. The guide is in the description, with every step. What would you run locally first? Tell us in the comments. See you next time!