Qwen · Chat and reasoning · 27.8B parameters · apache-2.0
Qwen3.8 27B
Needs 34 GB at FP8 / INT8. The smallest real configuration today is 2× Tesla V100 32GB at Vast.ai, $0.14 per hour, about $99 a month at 730 hours.
Parameters27.8Bdense
Context256k tokensmaximum published
Checkpoint56 GBBF16, as published
Licenseapache-2.0check before commercial use
ReleasedAug 2026documented date
Smallest configuration · FP8 / INT8
2× Tesla V100 32GB64 GB VRAM · 52% used
- Per hour
- $0.14
- Per month
- $99
- Cheapest at
Vast.ai
What is documented about Qwen3.8 27B
news checked 2026-10-27Dense 27.8B model of the Qwen3.8 generation (August 2026), Apache 2.0. The report sizes it at 54 GB in BF16 and 27 GB in FP8: one RTX 5090 in 4-bit, one RTX PRO 6000 in FP8, one or two H100 or one H200 for production.
- GPUBank global report, 2026-10-25, §3.4 (internal, sourced)
- https://huggingface.co/Qwen/Qwen3.8-27B
- https://huggingface.co/Qwen/Qwen3.8-27B/raw/main/config.json
- https://huggingface.co/api/models/Qwen/Qwen3.8-27B?blobs=true
Memory · 3 precisions · 5 context lengthsHow much VRAM it needs
Weights plus runtime overhead, then the KV cache that grows with the context you serve.
| Precision | Weights | Weights + headroom | 4k context | 32k context | 128k context | 256k context |
|---|---|---|---|---|---|---|
| BF16published checkpoint | 56 GB | 67 GB | 68 GB | 76 GB | 102 GB | 136 GB |
| FP8 / INT8estimated | 28 GB | 34 GB | 35 GB | 42 GB | 68 GB | 103 GB |
| INT4 / MXFP4estimated | 17 GB | 21 GB | 22 GB | 29 GB | 55 GB | 89 GB |
| KV cacheone sequence, FP16 cache, included above | — | — | 2 GB | 9 GB | 35 GB | 69 GB |
Cross-checked on Hugging Face Oct 28, 2026: 27.8B parameters in the safetensors headers, 55.6 GB of weight files, attention layout from config.json (64 layers, 4 KV heads × 256). Method: weights as published at the native precision, verified on Hugging Face 2026-10-28; other precisions estimated at 1 (8-bit) and 0.6 (4-bit) bytes per parameter; × 1.2 runtime headroom; KV cache = 4096 bytes per token per layer × 64 full-attention layers (FP16 cache, one sequence).config.json ↗
Smallest configuration per GPU · 110 GPUs · cheapest eligible on-demand offer per GPU count, every provider on fileWhat it costs to run, GPU by GPU
The fewest GPUs of one type whose total memory fits the model at short context, priced from the cheapest eligible on-demand offer for exactly that count (45-day window, newest reading per provider), with the next providers beside it. Monthly = 730 hours.
| GPU | Smallest config | VRAM used | $ / hour | $ / month | Cheapest at |
|---|---|---|---|---|---|
| Tesla V100 32GBBest fit | 2× 32 GB64 GB total | 52% | $0.14 | $99 | Vast.aiTrust 78 · read Nov 1 · receipt · also Cyfuture AI $1.13, io.net $2.52 |
| T4 | 4× 16 GB64 GB total | 52% | $0.16 | $117 | Vast.aiTrust 78 · read Nov 1 · receipt · also iwinv $0.78, NHN Cloud $2.46 |
| RTX 3060 | 4× 12 GB48 GB total | 70% | $0.16 | $119 |  Clore.aiTrust 46 · read Nov 1 · receipt · also Vast.ai $0.21, Edgevana $0.37 |
| Tesla P100 | 4× 16 GB64 GB total | 52% | $0.19 | $138 | Vast.aiTrust 78 · read Nov 1 · receipt · also Edgevana $0.37 |
| RTX 3090 | 2× 24 GB48 GB total | 70% | $0.21 | $157 | Vast.aiTrust 78 · read Nov 1 · receipt · also Clore.ai $0.24, Edgevana $0.46 |
| Quadro RTX 8000 | 1× 48 GB48 GB total | 70% | $0.25 | $186 | Vast.aiTrust 78 · read Nov 1 · receipt · also TensorDock $0.32 |
| RTX 6000 | 2× 24 GB48 GB total | 70% | $0.27 | $196 | Vast.aiTrust 78 · read Nov 1 · receipt |
| Titan RTX | 2× 24 GB48 GB total | 70% | $0.27 | $196 | Vast.aiTrust 78 · read Nov 1 · receipt · also Edgevana $0.55 |
| Titan Xp | 4× 12 GB48 GB total | 70% | $0.27 | $196 | Vast.aiTrust 78 · read Nov 1 · receipt |
| L40 | 1× 48 GB48 GB total | 70% | $0.27 | $196 | Vast.aiTrust 78 · read Nov 1 · receipt · also io.net $0.66, GPURento $0.69 |
| RTX 2080 Ti | 4× 11 GB44 GB total | 76% | $0.28 | $202 | Vast.aiTrust 78 · read Nov 1 · receipt |
| RTX A6000 | 1× 48 GB48 GB total | 70% | $0.33 | $241 | GPURentonot scored · read Nov 1 · receipt · also gcube $0.34, Thunder Compute $0.35 |
| A100 40GB | 1× 40 GB40 GB total | 83% | $0.34 | $246 | Vast.aiTrust 78 · read Nov 1 · receipt · also Edgevana $0.58, AtmosCompute $0.73 |
| A40 | 1× 48 GB48 GB total | 70% | $0.35 | $255 | GPURentonot scored · read Nov 1 · receipt · also Vast.ai $0.48, Exoscale $1.05 |
| RTX 5060 Ti | 4× 16 GB64 GB total | 52% | $0.35 | $258 | Clore.aiTrust 46 · read Nov 1 · receipt · also Vast.ai $0.38, Edgevana $0.68 |
| RTX A4000 | 4× 16 GB64 GB total | 52% | $0.36 | $266 | Vast.aiTrust 78 · read Nov 1 · receipt · also Spheron $3.84 |
| RTX 3080 | 4× 10 GB40 GB total | 83% | $0.38 | $274 | Clore.aiTrust 46 · read Nov 1 · receipt · also Vast.ai $0.41, AtmosCompute $1.35 |
| RTX A5000 | 2× 24 GB48 GB total | 70% | $0.38 | $274 | Vast.aiTrust 78 · read Nov 1 · receipt · also Edgevana $0.74, Airon AI $0.90 |
| RTX 4070 Super | 4× 12 GB48 GB total | 70% | $0.38 | $274 | Vast.aiTrust 78 · read Nov 1 · receipt · also Edgevana $0.56, Clore.ai $0.58 |
| Tesla V100 16GB | 4× 16 GB64 GB total | 52% | $0.38 | $275 | Vast.aiTrust 78 · read Nov 1 · receipt · also CloudRift $1.00, AtmosCompute $1.30 |
| RTX 6000 Ada | 1× 48 GB48 GB total | 70% | $0.40 | $290 | |
| Quadro RTX 5000 | 4× 16 GB64 GB total | 52% | $0.40 | $294 | Vast.aiTrust 78 · read Nov 1 · receipt |
| RTX 3090 Ti | 2× 24 GB48 GB total | 70% | $0.42 | $304 | Clore.aiTrust 46 · read Nov 1 · receipt |
| L40S | 1× 48 GB48 GB total | 70% | $0.43 | $314 | Vast.aiTrust 78 · read Nov 1 · receipt · also Clore.ai $0.50, GPUBank $0.55 |
| The 24 cheapest of 74 GPU types that fit. Every GPU, any precision and context, in the finder | |||||
Throughput estimates · internal study · 2026-10-04Tokens per second, and what a million costs
Chat and reasoning. Speed estimated from memory bandwidth and model size, never measured. The cost per 1M output tokens is the study's own estimate at the prices it read on 2026-10-04; it is not recomputed here.
| GPU | Cards | Precision | tok/s per user | per 1M output tokens · study estimate |
|---|---|---|---|---|
| RTX 4090 | 2 | FP8 | 30.8 | $0.183 |
| MI300X | 1 | FP8 | 78.1 | $0.203 |
| L40S | 1 | FP8 | 20.5 | $0.230 |
| H100 SXM | 1 | FP8 | 68.0 | $0.252 |
| B200 | 1 | FP8 | 136 | $0.265 |
| H100 PCIe | 1 | FP8 | 43.8 | $0.266 |
| RTX 5090 | 2 | FP8 | 47.9 | $0.278 |
| RTX PRO 6000 | 1 | FP8 | 40.1 | $0.288 |
| H200 | 1 | FP8 | 89.8 | $0.295 |
| A100 80GB | 1 | BF16 | 24.3 | $0.570 |
cards, precision and speed estimated from memory bandwidth and model size (internal study); cost recomputed by the site from verified prices · cheapest per output at study prices: RTX 4090Why estimates, and their limits →
Qwen3.8 27B · related