ByteDance Seed · Code · 8.25B parameters · mit
Stable DiffCoder 8B Instruct
Needs 10 GB at FP8 / INT8. The smallest real configuration today is 1× RTX 3060 at Vast.ai, $0.04 per hour, about $26 a month at 730 hours.
Parameters8.25Bdense
Context8k tokensmaximum published
Checkpoint17 GBBF16, as published
Licensemitcheck before commercial use
Released—documented date
Smallest configuration · FP8 / INT8
1× RTX 306012 GB VRAM · 83% used
- Per hour
- $0.04
- Per month
- $26
- 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 | 8k context |
|---|---|---|---|---|
| BF16published checkpoint | 17 GB | 20 GB | 21 GB | 21 GB |
| FP8 / INT8estimated | 8 GB | 10 GB | 11 GB | 11 GB |
| INT4 / MXFP4estimated | 5 GB | 6 GB | 7 GB | 8 GB |
| KV cacheone sequence, FP16 cache, included above | — | — | 1 GB | 2 GB |
Cross-checked on Hugging Face Oct 28, 2026: 8.25B parameters in the safetensors headers, 16.5 GB of weight files, attention layout from config.json (32 layers, 8 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 = 4096 bytes per token per layer × 32 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 |
|---|---|---|---|---|---|
| RTX 3060Best fit | 1× 12 GB12 GB total | 83% | $0.04 | $26 | |
| RTX A2000 | 1× 12 GB12 GB total | 83% | $0.04 | $26 | |
| T4 | 1× 16 GB16 GB total | 62% | $0.04 | $29 | |
| Tesla P40 | 1× 24 GB24 GB total | 41% | $0.04 | $30 | |
| GTX Titan X | 1× 12 GB12 GB total | 83% | $0.04 | $31 | |
| Titan Xp | 1× 12 GB12 GB total | 83% | $0.04 | $31 | |
| Tesla P100 | 1× 16 GB16 GB total | 62% | $0.04 | $33 | |
| Quadro P2000 | 2× 5 GB10 GB total | 99% tight | $0.06 | $41 | |
| GTX 1080 Ti | 1× 11 GB11 GB total | 90% | $0.06 | $45 | |
| RTX A4000 | 1× 16 GB16 GB total | 62% | $0.06 | $46 | |
| Tesla V100 16GB | 1× 16 GB16 GB total | 62% | $0.06 | $46 | |
| RTX 2080 Ti | 1× 11 GB11 GB total | 90% | $0.07 | $49 | |
| Tesla V100 32GB | 1× 32 GB32 GB total | 31% | $0.07 | $50 | |
| RTX PRO 2000 | 1× 16 GB16 GB total | 62% | $0.07 | $51 | |
| Tesla M40 | 1× 24 GB24 GB total | 41% | $0.07 | $54 | |
| RTX 3080 | 1× 10 GB10 GB total | 99% tight | $0.07 | $55 | |
| RTX 3080 Ti | 1× 12 GB12 GB total | 83% | $0.08 | $60 | |
| RTX 4070 | 1× 12 GB12 GB total | 83% | $0.08 | $61 | |
| GTX 1660 | 2× 6 GB12 GB total | 83% | $0.09 | $64 | |
| RTX 5060 Ti | 1× 16 GB16 GB total | 62% | $0.09 | $64 | |
| RTX 3090 | 1× 24 GB24 GB total | 41% | $0.09 | $66 | Akash NetworkTrust 53 · read Nov 1 · receipt · also Vast.ai $0.10, Clore.ai $0.11 |
| RTX 4070 Super | 1× 12 GB12 GB total | 83% | $0.10 | $70 | |
| GTX 1070 | 2× 8 GB16 GB total | 62% | $0.10 | $70 | |
| GTX 1070 Ti | 2× 8 GB16 GB total | 62% | $0.10 | $76 | |
| The 24 cheapest of 100 GPU types that fit. Every GPU, any precision and context, in the finder | |||||
Tokens per second, and what a million costs
Code. Speed estimated from memory bandwidth and model size, never measured. The cost per 1M output tokens is an estimate at the prices read on Oct 4, 2026; it is not recomputed here.
| GPU | Cards | Precision | tok/s per user | per 1M output tokens · estimate |
|---|---|---|---|---|
| RTX 4090 | 1 | FP8 | 72.3 | $0.060 |
| RTX 5090 | 1 | FP8 | 117 | $0.076 |
| MI300X | 1 | FP8 | 198 | $0.088 |
| L40S | 1 | FP8 | 63.0 | $0.102 |
| H100 SXM | 1 | FP8 | 182 | $0.110 |
| H100 PCIe | 1 | FP8 | 125 | $0.118 |
| B200 | 1 | FP8 | 312 | $0.122 |
| RTX PRO 6000 | 1 | FP8 | 116 | $0.122 |
| H200 | 1 | FP8 | 225 | $0.124 |
| A100 80GB | 1 | BF16 | 74.2 | $0.197 |
cards, precision and speed estimated from memory bandwidth and model size; cost recomputed by the site from verified prices · cheapest per output at the prices of Oct 4, 2026: RTX 4090Why estimates, and their limits →
