Open 1B Midtrained 93B — Hardware Requirements & GPU Compatibility
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Open 1B Midtrained 93B is a 1.6B-parameter open language model from Gensyn. It supports a context window of up to 4,096 tokens. At BF16 it needs about 3.62 GB of VRAM — see which GPUs and Macs can run it below.
Runs great on a 24 GB GPU
Runs from 8 GB (BF16 · 4K)Best on 24 GB (BF16 · ~181 tok/s · 4K)Macs from 8 GB (BF16 · ~20 tok/s)
Apache 2.0
Reference GPU · RTX 4090 24 GB
Estimates, ±20% · how we estimate
Run Open 1B Midtrained 93B
One recommended way. Every other method, OS and quant is in the step-by-step guide.Each way opens a step-by-step guide for your OS and quant.
Recommended
vllm serve Gensyn/open-1b-midtrained-93B --max-model-len 4096vLLM repo with its own quantisation
Download: Weights on Hugging Face
Ways to runOther ways
each opens step-by-stepRun in cloud
Runs on RTX 3080 Ti (12 GB) (8 GB headroom) · BF16
- Generation speed
- ~164 tok/s
- generation speed
- Cost per 1M output tokens
- $0.21
- per 1M output tokens
How Much VRAM Does Open 1B Midtrained 93B Need?
Select a quantization level; the listed hardware adheres to it.
| Quantization | VRAM | +32K | On RTX 4090 (reference) | |
|---|---|---|---|---|
| 3.6 GB | — | 16-bit · bfloat — Brain floating point 16 — preferred for training | Fits: 4K context · ~181 tok/s |
Selected BF16
Brain floating point 163.7GBat 4K context
- Weights
- 3.2 GB
- KV cache
- 0.2 GB
- Overhead
- 0.3 GB
Fits RTX 4090 (reference) · 20.3 GB free · ~181 tok/s
≥50 tok/s needs ≥278 GB/s · RTX 5090 ~322, RTX 3090 Ti ~181
Which Hardware Can Run Open 1B Midtrained 93B?
BF16 · 3.6 GBOpen 1B Midtrained 93B (BF16) requires 3.6 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 5+ GB is recommended. Using the full 4K context window can add up to 0.1 GB, bringing total usage to 3.7 GB. 52 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti. 163 devices with unified memory can run Open 1B Midtrained 93B, including Mac Studio (M3 Ultra, 256GB), Mac Studio (M3 Ultra, 512GB), MacBook Air 13" M3 (8 GB).
≤ 11 GB
≤ 11 GB tier →fits · 4.3 GB free · up to 4K ctx
16 GPUs · 1 Mac class · 2 device families
RTX 3080~137Simulate output on RTX 3080RTX 2080 Ti~111Simulate output on RTX 2080 TiRTX 3070 Ti~109Simulate output on RTX 3070 TiM3*8 GB~20Simulate output on iMac 24" M3 (8 GB)Orin Nano~18Simulate output on NVIDIA Jetson Orin Nano 8GB (Super)iPhone~13Simulate output on iPhone 1720 GB
fits · 16.3 GB free · up to 4K ctx
1 GPU
RX 7900 XT~133Simulate output on RX 7900 XT32–40 GB
fits · 28.3 GB free · up to 4K ctx
1 GPU · 3 Mac classes · 4 device families
RTX 5090~322Simulate output on RTX 5090M5 Max36 GB~89Simulate output on Mac Studio M5 Max (36 GB)M532 GB~30Simulate output on MacBook Air 13" M5 (32 GB)Orin~37Simulate output on NVIDIA Jetson AGX Orin 32GBSnapdragon X Elite (X1E-80-100)~24Simulate output on Snapdragon X Elite Copilot+ PC
By VRAM tier · typical GPUs and Macs at BF16
Similar models
6| Model | Score | VRAM | tok/s | Why it is similar |
|---|---|---|---|---|
| LFM3 1.7BLiquid AI | — | 2.1 GB | ~455 | same size |
| MiniCPM V 4.7 1BOpenBMB | — | 1.6 GB | ~512 | same size |
| Granite 4.0 1BIBM | — | 2.6 GB | ~452 | same size |
| LFM2 VL 1.6BLiquid AI | — | 1.5 GB | ~496 | same size |
| Qwen Base Invoicev1.01 1.5BLaaP-ai | — | 1.7 GB | ~512 | same size |
| Qwen3 1.7B BaseAlibaba | — | 3.2 GB | ~417 | same size |
Fine-tunes & variants(1)
Specifications
- Publisher
- Gensyn
- Parameters
- 1.6B
- Architecture
- Open1BForCausalLM
- Context Length
- 4,096 tokens
- Vocabulary Size
- 128,256
- Release Date
- 2026-09-15
- License
- Apache 2.0
Frequently Asked Questions
How much VRAM does Open 1B Midtrained 93B need?
Open 1B Midtrained 93B requires 3.6 GB of VRAM at BF16.
VRAM = Weights + KV Cache + Overhead
Weights = 1.6B × 16 bits ÷ 8 = 3.2 GB
KV Cache + Overhead ≈ 0.4 GB (at 2K context + ~0.3 GB framework)
Fit ratings and hardware model lists check this model with room for a 16K-token context, which needs a little more memory.
KV Cache + Overhead ≈ 0.5 GB (at full 4K context)
VRAM usage by quantization
Can I run Open 1B Midtrained 93B on a Mac?
Yes — MacBook Air 13" M3 (8 GB) and 145 other Macs can run Open 1B Midtrained 93B. Apple Silicon uses unified memory, so the model shares RAM with the system. At BF16 you need at least 3.6 GB of usable unified memory (RAM minus macOS overhead).
Can I run Open 1B Midtrained 93B locally?
Yes — Open 1B Midtrained 93B can run locally on consumer hardware. Popular tools include Ollama, LM Studio, and llama.cpp.
How fast is Open 1B Midtrained 93B?
At BF16, Open 1B Midtrained 93B can reach ~1326 tok/s on AMD Instinct MI350X. On NVIDIA GeForce RTX 4090: ~181 tok/s. Speed depends mainly on GPU memory bandwidth. Real-world results typically within ±20%.
tok/s = (bandwidth GB/s ÷ model GB) × efficiency
Example: NVIDIA B200 → 8000 ÷ 3.6200 × 0.65 = ~1436 tok/s
Estimated speed at BF16 (3.6 GB)
Real-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
What's the download size of Open 1B Midtrained 93B?
At BF16, the download is about 3.22 GB.
Which GPUs can run Open 1B Midtrained 93B?
52 consumer GPUs can run Open 1B Midtrained 93B at BF16. Top options include AMD Radeon RX 6700 XT, AMD Radeon RX 6800, AMD Radeon RX 6800 XT. 52 GPUs have plenty of headroom for comfortable inference.
Which devices can run Open 1B Midtrained 93B?
163 devices with unified memory can run Open 1B Midtrained 93B at BF16 (3.6 GB), including AMD Ryzen AI 9 HX 370 (Strix Point) Laptop, ASUS Ascent GX10, Beelink GTR9 Pro (Ryzen AI Max+ 395, 128 GB), Framework Desktop (Ryzen AI Max+ 395, 128 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.