Captain B.
From clueless to running a 35B model on a single 24GB GPU — Claude (Anthropic) + RunPod
A year ago I had zero background in AI infrastructure — couldn't have told you what a GGUF file was. Claude, Anthropic's AI, walked me through the whole build step by step, explaining the "why" behind every flag rather than just handing me commands. The centerpiece: hybrid CPU/GPU inference running a 35B parameter model on a single RTX 3090 (24GB VRAM) — something that shouldn't fit, but does, using `--override-tensor exps=CPU` to force the MoE expert weights onto system RAM while the rest stays on GPU. We compiled llama.cpp from source with CUDA support (`-DGGML_CUDA=ON -DCMAKE_CUDA_ARCHITECTURES=86` for the 3090's architecture) to get there. On RunPod specifically: Secure Cloud gave me a persistent network volume that survives pod restarts and rebuilds — genuinely useful when I've had to recover from scratch more than once. $0.50/hr for 24GB VRAM, 125GB RAM, and 32 vCPUs is a fair trade for not owning the hardware. Storage is cheap enough to just leave the volume parked between sessions. Also running alongside the main model: a lightweight CPU-only summariser, an SDXL image generation pipeline, and a vision model — all on the same box, all started with one script. Getting all of that talking to each other cleanly took real trial and error (KV cache quantization, context window tuning, flash attention flags), but RunPod never got in the way of any of it. If you're starting from zero and want to actually understand your stack rather than just running someone else's Docker image, Anthropic's Claude paired with RunPod's compute is a combination that works. NOTES: Most of the build work was done with Claude Sonnet 5 thinking, which handled the day-to-day debugging and config well. One genuinely gnarly problem did need a switch to Claude Fable 5 to get unstuck — worth knowing the model choice can matter for the harder edge cases, not just picking whichever is default. Also — once you've got your setup exactly how you want it, remember RunPod's own documentation is explicit that network volumes aren't meant as a permanent storage guarantee. Don't treat a pod/volume as a "set and forget" backup. I set up a proper backup pipeline to Google Cloud Storage and it was genuinely painless — a scheduled sync job, and I've since done a full restore onto a fresh volume from that backup with no real drama. Cheap insurance for something that took real hours to build.
Response from RunpodJul 25, 2026
Hello, thank you so much for this detailed review! We love hearing how you used Secure Cloud's persistent network volumes to build out a full multi-model setup — running your main model alongside a summariser, an SDXL pipeline, and a vision model, all on one box. It's great to know the GPU/RAM/vCPU pricing worked well for you, and that Runpod stayed out of your way while you got everything talking to each other. We'd love to hear more about your positive experience — if you're interested in sharing more, feel free to reach out to Brooke at [email protected]. Best regards, Runpod




