Colgrep Agent 2B — Hardware Requirements & GPU Compatibility
ChatCodeFunctions
Colgrep Agent 2B is a 2.5B-parameter open language model from lightonai. It supports a context window of up to 131,072 tokens. At Q4_K_M it needs about 1.90 GB of VRAM — see which GPUs and Macs can run it below.
Runs great on a 24 GB GPU
Runs from 8 GB (Q4_K_M · 128K)Best on 24 GB (Q4_K_M · ~345 tok/s · 128K)Macs from 8 GB (Q4_K_M · ~38 tok/s)
Apache 2.0
Reference GPU · RTX 4090 24 GB
Estimates, ±20% · how we estimate
Run Colgrep Agent 2B
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 lightonai/colgrep-agent-2B --max-model-len 16384vLLM repo with its own quantisation
Download: Weights on Hugging Face
Ways to runOther ways
each opens step-by-stepRun in cloud
Runs on RTX 3060 12GB (9 GB headroom) · Q4_K_M
- Generation speed
- ~123 tok/s
- generation speed
- Cost per 1M output tokens
- $0.13
- per 1M output tokens
How Much VRAM Does Colgrep Agent 2B Need?
Select a quantization level; the listed hardware adheres to it.
| Quantization | VRAM | +32K | On RTX 4090 (reference) | |
|---|---|---|---|---|
| 1.5 GB | 2.8 GB | 2-bit · K-quant — 2-bit quantization with K-quant improvements | Fits: 128K context · ~449 tok/s | |
| 1.6 GB | 2.9 GB | 3-bit medium — 3-bit medium quantization | Fits: 128K context · ~407 tok/s | |
| 1.9 GB | 3.2 GB | 4-bit medium — 4-bit medium quantization — most popular sweet spot | Fits: 128K context · ~345 tok/s | |
| 2.2 GB | 3.5 GB | 5-bit medium — 5-bit medium quantization — good quality/size tradeoff | Fits: 128K context · ~301 tok/s | |
| 2.5 GB | 3.8 GB | 6-bit, very good — 6-bit quantization, very good quality | Fits: 128K context · ~266 tok/s | |
| 2.9 GB | 4.2 GB | 8-bit, near-lossless — 8-bit quantization, near-lossless | Fits: 128K context · ~226 tok/s | |
| 5.4 GB | 6.7 GB | 16-bit · bfloat — Brain floating point 16 — preferred for training | Fits: 128K context · ~121 tok/s |
Selected Q4_K_M
4-bit medium quantization2.5GBat 16K context
- Weights
- 1.5 GB
- KV cache
- 0.7 GB
- Overhead
- 0.3 GB
Fits RTX 4090 (reference) · 21.5 GB free · ~345 tok/s
≥50 tok/s needs ≥146 GB/s · RTX 5090 ~613, RTX 3090 Ti ~345
Which Hardware Can Run Colgrep Agent 2B?
Q4_K_M · 1.9 GBColgrep Agent 2B (Q4_K_M) requires 1.9 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 3+ GB is recommended. Using the full 131K context window can add up to 5.6 GB, bringing total usage to 7.5 GB. 52 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti. 163 devices with unified memory can run Colgrep Agent 2B, including Mac Studio (M3 Ultra, 256GB), Mac Studio (M3 Ultra, 512GB).
≤ 11 GB
≤ 11 GB tier →fits · 5.5 GB free · up to 128K ctx
16 GPUs · 1 Mac class · 2 device families
RTX 3080~260Simulate output on RTX 3080RTX 2080 Ti~211Simulate output on RTX 2080 TiRTX 3070 Ti~208Simulate output on RTX 3070 TiM3*8 GB~38Simulate output on iMac 24" M3 (8 GB)Orin Nano~35Simulate output on NVIDIA Jetson Orin Nano 8GB (Super)iPhone~25Simulate output on iPhone 1720 GB
fits · 17.5 GB free · up to 128K ctx
1 GPU
RX 7900 XT~253Simulate output on RX 7900 XT32–40 GB
fits · 29.5 GB free · up to 128K ctx
1 GPU · 3 Mac classes · 4 device families
RTX 5090~613Simulate output on RTX 5090M5 Max36 GB~170Simulate output on Mac Studio M5 Max (36 GB)M532 GB~57Simulate output on MacBook Air 13" M5 (32 GB)Orin~70Simulate output on NVIDIA Jetson AGX Orin 32GBSnapdragon X Elite (X1E-80-100)~46Simulate output on Snapdragon X Elite Copilot+ PC
By VRAM tier · typical GPUs and Macs at Q4_K_M
Similar models
6| Model | Score | VRAM | tok/s | Why it is similar |
|---|---|---|---|---|
| MiniCPM5 2BOpenBMB | — | 2.5 GB | ~345 | same size |
| North Micro Vision InstructCohere | — | 3.7 GB | ~323 | same size |
| LFM2.5 2.6BLiquid AI | — | 2.3 GB | ~321 | same size |
| Granite 3.1 2B InstructIBM | — | 3.2 GB | ~329 | same size |
| Gemma 2 2B ITGoogle | — | 2.5 GB | ~379 | same size |
| EXAONE 3.5 2.4B InstructLGAI-EXAONE | — | 3.4 GB | ~412 | same size |
Specifications
- Publisher
- lightonai
- Parameters
- 2.5B
- Architecture
- LlamaForCausalLM
- Context Length
- 131,072 tokens
- Vocabulary Size
- 130,560
- Release Date
- 2026-10-03
- License
- Apache 2.0
Frequently Asked Questions
How much VRAM does Colgrep Agent 2B need?
Colgrep Agent 2B requires 1.9 GB of VRAM at Q4_K_M, or 5.4 GB at BF16. Full 131K context adds up to 5.6 GB (7.5 GB total).
VRAM = Weights + KV Cache + Overhead
Weights = 2.5B × 4.8 bits ÷ 8 = 1.5 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 ≈ 6 GB (at full 131K context)
VRAM usage by quantization
What's the best quantization for Colgrep Agent 2B?
For Colgrep Agent 2B, Q4_K_M (1.9 GB) offers the best balance of quality and VRAM usage. Q5_K_M (2.2 GB) provides better quality if you have the VRAM. The smallest option is Q2_K at 1.5 GB.
VRAM requirement by quantization
★ Recommended — best balance of quality and VRAM usage.
Can I run Colgrep Agent 2B on a Mac?
Yes — MacBook Air 13" M3 (8 GB) and 145 other Macs can run Colgrep Agent 2B. Apple Silicon uses unified memory, so the model shares RAM with the system. At Q4_K_M you need at least 1.9 GB of usable unified memory (RAM minus macOS overhead).
Can I run Colgrep Agent 2B locally?
Yes — Colgrep Agent 2B can run locally on consumer hardware. Popular tools include Ollama, LM Studio, and llama.cpp.
How fast is Colgrep Agent 2B?
At Q4_K_M, Colgrep Agent 2B can reach ~2526 tok/s on AMD Instinct MI350X. On NVIDIA GeForce RTX 4090: ~345 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 ÷ 1.9 × 0.65 = ~2737 tok/s
Estimated speed at Q4_K_M (1.9 GB)
Real-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
What's the download size of Colgrep Agent 2B?
At Q4_K_M, the download is about 1.51 GB. The full-precision BF16 version is 5.03 GB. The smallest option (Q2_K) is 1.07 GB.
Which GPUs can run Colgrep Agent 2B?
52 consumer GPUs can run Colgrep Agent 2B at Q4_K_M. 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 Colgrep Agent 2B?
163 devices with unified memory can run Colgrep Agent 2B at Q4_K_M (1.9 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.