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Nodus blog

Notes on running AI compute

Guides, prices and benchmarks for training, inference and coding agents, from the people building Nodus.

sandboxes8 min read

Nodus vs E2B: which sandbox should AI agents use?

Nodus vs E2B for AI agent sandboxes: isolation, what the defaults do when an agent forgets, network access, GPUs and what 2,000 sandbox-hours cost.

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gpu9 min read

How much VRAM do you need to run or fine-tune a 70B model?

A 70B model needs 40 to 141 GB for weights plus a KV cache to serve, and 50 GB to 1.1 TB to fine-tune. The math, GPU setups and a script to check yours.

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training9 min read

Nodus vs Modal: which is better for GPU training?

Nodus vs Modal for GPU training: listed rates, preemption, the 24-hour limit, multi-node clusters, agent support and what the same jobs cost on each.

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agents7 min read

How do you stop an AI agent from overspending on GPUs?

A prompt is not a limit. Cap every run, put a blocking budget around agent work, scope its credentials and approve writes. Setup for Claude Code and Codex.

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benchmarks8 min read

Continued pretraining on Nodus: 42.5% lower charges

Both platforms reduced perplexity by 21.8% and produced identical weights. Our pilot compares what that improvement cost and how long delivery took.

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benchmarks8 min read

Fine-tuning on Nodus: 67% lower charges

Nodus and Modal reached 91.74% accuracy with identical trained weights. We compare successful-run charges, retry costs and delivery time.

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capacity6 min read

Spot vs on-demand GPUs: what breaks, and how do you make spot safe?

Spot GPUs cost up to 90% less but can vanish with 30 seconds of notice. What breaks, each cloud's notice window, the cost math and a safe setup.

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gpu6 min read

What are the best Modal alternatives for GPU training in 2026?

Modal alternatives for training compared on listed H100 prices, preemption handling, run limits and cost per run, as of October 9, 2026.

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pricing3 min read

Cloud GPU pricing, October 2026: what an H100, H200, B200 or B300 costs per hour

Listed per GPU-hour prices for B300, B200, H200, H100, A100, L40S, L4 and RTX cards as of October 8, 2026, with a training-run cost example.

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mcp3 min read

How to give Claude Code, Codex or Cursor access to GPUs (MCP setup)

Connect one MCP server and your coding agent can estimate, launch and watch GPU jobs on your account, with dry runs and spending limits.

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checkpointing3 min read

How to make GPU training survive spot preemption (without babysitting it)

Save model, optimizer and step to one directory, write atomically, resume on start, and let the platform carry that directory across a reclaim.

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