Qwen · Chat and reasoning · 235B parameters · 22B active · apache-2.0
Qwen3 235B-A22B
Needs 311 GB at FP8 / INT8. The smallest real configuration today is 4× A100 80GB at Vast.ai, $2.40 per hour, about $1,754 a month at 730 hours.
Parameters235B22B active per token
Context40k tokensmaximum published
Checkpoint470 GBBF16, as published
Released—documented date
Smallest configuration · FP8 / INT8
4× A100 80GB320 GB VRAM · 97% used
- Per hour
- $2.40
- Per month
- $1,754
- Cheapest at
Vast.ai
How 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 | 40k context |
|---|---|---|---|---|---|
| BF16published checkpoint | 470 GB | 565 GB | 566 GB | 571 GB | 573 GB |
| FP8 / INT8published checkpoint | 259 GB | 311 GB | 312 GB | 317 GB | 319 GB |
| INT4 / MXFP4published checkpoint | 150 GB | 181 GB | 182 GB | 187 GB | 189 GB |
| KV cacheone sequence, FP16 cache, included above | — | — | 1 GB | 7 GB | 8 GB |
Cross-checked on Hugging Face Oct 28, 2026: 235.1B parameters in the safetensors headers, 470.2 GB of weight files, attention layout from config.json (94 layers, 4 KV heads × 128). 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 = 2048 bytes per token per layer × 94 full-attention layers (FP16 cache, one sequence).config.json ↗
What 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 |
|---|---|---|---|---|---|
| A100 80GBBest fit | 4× 80 GB320 GB total | 97% tight | $2.40 | $1,754 | |
| A100 40GB | 8× 40 GB320 GB total | 97% tight | $3.20 | $2,338 | |
| RTX A6000 | 8× 48 GB384 GB total | 81% | $3.36 | $2,453 | |
| L40S | 8× 48 GB384 GB total | 81% | $3.74 | $2,727 | |
| RTX PRO 6000 | 4× 96 GB384 GB total | 81% | $3.84 | $2,805 | |
| Gaudi 2 | 4× 96 GB384 GB total | 81% | $4.18 | $3,052 | |
| A40 | 8× 48 GB384 GB total | 81% | $4.61 | $3,364 | |
| A100X | 4× 80 GB320 GB total | 97% tight | $5.12 | $3,739 | |
| RTX 6000 Ada | 8× 48 GB384 GB total | 81% | $5.20 | $3,796 | |
| MI300X | 2× 192 GB384 GB total | 81% | $5.71 | $4,167 | |
| MI325X | 2× 256 GB512 GB total | 61% | $6.21 | $4,536 | |
| H100 | 4× 80 GB320 GB total | 97% tight | $6.84 | $4,991 | |
| B200 | 2× 180 GB360 GB total | 86% | $8.22 | $6,002 | |
| L40 | 8× 48 GB384 GB total | 81% | $8.40 | $6,132 | |
| RTX PRO 6000D | 4× 84 GB336 GB total | 92% tight | $10.56 | $7,709 | AtmosComputenot scored · read Nov 1 · receipt |
| H200 NVL | 4× 141 GB564 GB total | 55% | $10.67 | $7,788 | |
| H200 | 4× 141 GB564 GB total | 55% | $11.05 | $8,070 | |
| B300 | 2× 288 GB576 GB total | 54% | $11.65 | $8,506 | |
| H100 NVL | 4× 94 GB376 GB total | 83% | $12.48 | $9,112 | |
| B200 CC | 2× 180 GB360 GB total | 86% | $18.09 | $13,206 | |
| MI355X | 8× 288 GB2304 GB total | 13% | $23.60 | $17,228 | |
| GB300 | 2× 288 GB576 GB total | 54% | $26.11 | $19,060 | |
| B300 CC | 4× 288 GB1152 GB total | 27% | $46.31 | $33,806 | |
| A800 80GB PCIe | 8× 80 GB640 GB total | 48% | $50.80 | $37,088 |
