Guides for GPU Cloud Users
Provider comparisons, deployment recipes, and honest cost breakdowns for independent AI developers.

Self-Host an LLM on a Rented GPU or Pay per Token? A Break-Even Calculator (2026)
When does renting a GPU beat a per-token API? The break-even formula, a Qwen3 32B example on a 32 GB card, utilisation and a script.

Save Your Work Before You Destroy a Cloud GPU: Checkpoints, rsync and Hub Uploads (2026)
Destroying a rented GPU deletes its disk. Copy checkpoints, LoRA adapters and outputs off the machine with rsync, scp, Hugging Face or rclone.

KV Cache VRAM Calculator: How Much Memory Does Context Length Need? (2026)
KV cache memory for any context length: the formula, per-token sizes for Qwen3, Llama 3 and Mistral from config.json, and what fits on 24–80 GB.

Rent an RTX 4090 48GB in the Cloud: Run a 70B Model on One Card for $0.65/hour (2026)
The 48 GB RTX 4090 fits Llama 3.3 70B at 4-bit, Qwen3 32B at 8-bit and Flux at full precision on a single card. What fits, what does not, what it costs per hour and per day, and how to start one in about two minutes. Prices as of 20 October 2026.

How to Pay for the Claude API Without a US Credit Card: USDT, Alipay, Google Pay (2026)
Top up one prepaid balance with Visa/Mastercard, Alipay, Google Pay, Apple Pay, USDT on TRC-20 or business bank transfer, then call Claude models over the API, billed per token.

How to Use Claude in Cursor, Cline and Continue With Your Own API Key (2026)
Step-by-step setup for Claude Sonnet 5.5 and Opus 5.5 in Cursor, Cline and Continue through one OpenAI-compatible endpoint, at half the official per-token price. Exact fields, config.yaml, and what to check when it fails.

Run Claude Code on a Custom API Endpoint (2026): Base URL, Key, Model Aliases
Point Claude Code at cloudgpu.app with ANTHROPIC_BASE_URL and a cgw-sk key, map the Haiku slot, check the setup with one curl and /status, then save it in settings.json.

Claude API Proxy: Using Claude Through an OpenAI-Compatible Endpoint (2026)
What a Claude API proxy or gateway actually is, how calling Claude through an OpenAI-compatible endpoint works, and the honest trade-offs: what you gain, what you give up, and how to evaluate one before you trust it.

Claude API Access With Alipay and No US Card (2026)
Call Claude Opus and Sonnet through one OpenAI-compatible endpoint at half the official Claude API price. Pay with Alipay, Google Pay, Apple Pay or USDT — no separate account or US card needed.

Pay for Cloud GPUs and AI APIs with Alipay, Google Pay, Apple Pay, a Card or USDT (October 2026)
Every way to top up a cloudgpu.app balance, checked in the live checkout on 3 October 2026 country by country: Visa and Mastercard, Alipay, Google Pay and Apple Pay through Creem, USDT on TRC-20, and bank transfer. Minimums, fees, tax, what each one is good for, and what is not accepted.

Fine-Tune With LLaMA-Factory on a Rented GPU, Billed by the Minute (RTX 4090 / 4090 48G / A100, 2026)
How to run a LoRA or QLoRA fine-tune with LLaMA-Factory on a rented RTX 3090, 4090, 4090 48G or A100, what each card fits, and what a run actually costs at 27 September 2026 prices. Card or USDT, no Chinese phone number.

GLM-5 API Without a Chinese Phone Number: OpenAI-Compatible, Pay by Card or USDT (September 2026)
Call Z.ai's GLM-5.2, GLM-5.1 and GLM-5.3-Flash through an OpenAI-compatible endpoint without a Chinese phone number or bank card. 27 September 2026 prices next to Z.ai's own list, where requests are served, and how to set it up in Cursor, Cline or the OpenAI SDK.

Kimi K2 and K3 API Without a Chinese Account: OpenAI-Compatible, Pay by Card or USDT
Call Moonshot's Kimi K2 and K3 through an OpenAI-compatible endpoint without a Chinese phone number, at or below Moonshot's own list price. Pay with a card or USDT. September 2026 prices for kimi-k3, kimi-k2.7-code and the rest.

Run ComfyUI and FLUX.1 on an RTX 5090 by the Minute, With a Public HTTPS Endpoint (2026)
Deploy the ComfyUI template on an RTX 5090 billed per minute, download FLUX.1 weights on the machine, export an API workflow and call /prompt over HTTPS with curl or Python.

How Much VRAM to Run Each Open Model? (2026 Table, 24 to 96 GB Cards)
A working table of VRAM needed to run Llama, Qwen, Gemma, Mistral, DeepSeek distills, gpt-oss and FLUX at FP16 and Q4, with KV-cache headroom, mapped to the GPU you should rent: RTX 3090, 4090, 5090, A6000, A100 or RTX PRO 6000.

Rent an RTX 5090 in the Cloud by the Minute (2026 Prices, No Card Needed)
What an RTX 5090 actually costs per hour in the cloud in September 2026, how per-minute billing changes the math for short jobs, and how to pay with USDT instead of a US credit card.

Run Ollama on a Cloud GPU with a Public HTTPS API in Two Minutes
Step by step: rent an RTX 4090 or 5090 by the minute, get Ollama running with a public OpenAI-compatible endpoint on cloudgpu.app, and call it from curl, Python or Cursor. Explains what happens under the hood.

DeepSeek V4 API Without a Chinese Phone Number or US Card: Pay in USDT, Use the OpenAI SDK
How to get a DeepSeek V4 Flash and Pro API key that you can pay for with USDT or a card, without a Chinese phone number, and plug into the OpenAI SDK, Cursor, Cline or OpenClaw. Prices as of 29 September 2026 for DeepSeek, GLM, Kimi and MiniMax, next to each vendor's own list.

How to Use DeepSeek in Cursor, Continue, and Cline Without a US Credit Card
Step-by-step setup for using DeepSeek-V4 in Cursor, Continue.dev, and Cline when OpenAI's Stripe checkout keeps declining your card. USDT-only path, 10-minute config.

GPU Cloud Providers for Indonesian and Vietnamese AI Developers in 2026
Honest pricing comparison of GPU cloud providers for AI developers in Indonesia and Vietnam. USDT payment, real deployment costs.