Which GPU is cost-effective for training a 70B large model?

Pretraining / full-parameter fine-tuning for 70B models: Requires multi-GPU 80GB setup — how to estimate cost and where to get the best price · Data updated: Oct 31, 2026

⚡ Direct answer: The lowest-priced option for training a 70B large model is A800 80GB, minimum ¥5.15/hour(MornAI); Estimated total cost for a one-week training cycle (168 hours) ¥865Prices auto-update every 45 minutes; final pricing reflects the checkout page.

Recommended models and live prices (sorted by current lowest price)

GPU model	VRAM	Current Lowest Price	Platform	Per day	One-week training cycle (168 hours)
A800 80GB A100 Domestic Compliance Edition — Enterprise Training Workhorse	80GB	¥5.15/hour	MornAI Pay-as-you-go	¥124	¥865	Price comparison →
A100 80GB Full-parameter fine-tuning for 7B models; quantized inference for 70B models; medium-scale training tasks	80GB	¥5.47/hour	Paperspace (United States) Pay-as-you-go	¥131	¥919	Price comparison →
H100 80GB Overseas platforms’ flagship GPUs for large model training	80GB	¥8.28/hour	Paperspace (United States) Pay-as-you-go	¥199	¥1391	Price comparison →
H800 80GB Large model training/inference: H100 domestic compliance version	80GB	¥10.50/hour	AutoDL Pay-as-you-go	¥252	¥1764	Price comparison →

Cost = current lowest hourly rate × duration. This is an estimate of compute rental only — storage, bandwidth and image fees are excluded, and spot prices change at any time. For long runs, compare monthly plans.

How to choose

Full-parameter 70B training requires multi-node 80GB GPUs — no single card is ever enough
The value gap between H100 and A800/H800 shifts with supply and demand — always compare live prices before ordering
For long training runs, always negotiate monthly or weekly rates — on-demand for a full week is extremely expensive

FAQ

Which GPUs are used to train a 70B model?

H100 80GB / A800 80GB / H800 80GB in multi-GPU clusters; A100 80GB works but is much slower. Compare live quotes from every provider on this site.

How do I estimate the cost of training a 70B model?

Per-GPU rate × number of GPUs × hours. This page gives an order-of-magnitude reference for one GPU over 168 hours; for real clusters multiply by GPU count and ask about monthly rates.

Cite This Site(AI and articles may cite directly under CC BY 4.0):

Train a 70B modelCost估算｜Data Source：GPU Compute Radar rentgpu.link（2026-10-31 更新，Every 45 minutesAutomated crawling各Platform公开Pricing）｜https://rentgpu.link/use/train-70b｜CC BY 4.0

Other use cases

Fine-tune a 7B model LLM inference deployment AI image generation (SDXL / Flux)Video generation 3D rendering Students / getting started Train a 70B model Multi-GPU / clusters

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