Is the Open Source AI Academy free?

Yes, 100% free. No sign-up, no credit card. All 18 modules, 31 lessons, and 73 quiz questions are accessible immediately. Your progress saves locally in your browser.

How is Infinity Open Source AI Academy different from vendor-specific open-weight tutorials?

Unlike generic or single-model tutorials, Infinity Tech Stack's Open Source AI Academy bridges global open weights (Llama 3.3, Mistral) and China Frontier Models (DeepSeek R1, Qwen 2.5, Kimi K3, GLM) with 18 comprehensive modules and simulated in-browser terminal labs for Ollama, llama.cpp, vLLM, and GGUF quantization. It requires zero GPU hardware, no cloud subscriptions, and no sign-up.

Does the Open Source AI Academy cover China's latest frontier open models?

Yes. The academy includes a dedicated China Frontier Models module covering Qwen, DeepSeek, Z.ai GLM, Moonshot Kimi, InternLM, Baichuan, and Yi, plus a practical model-radar workflow for weekly tracking and gated production adoption.

Did Kimi K3 score higher than Claude?

On several benchmarks, yes. Kimi K3 (July 14, 2026: 2.8T open-weight MoE, 1M context) beat Claude Fable 5 on 6 of 14 shared benchmarks — including BrowseComp (91.2 vs 88.0), SWE Marathon (42.0 vs 35.0), and Terminal-Bench 2.1 (88.3 vs 84.6) — topped the Arena.ai Frontend Code Arena, and edged Claude Opus 4.8 on the Artificial Analysis Intelligence Index (57 vs 56) at about 3.3x lower pricing. Claude Fable 5 won the other 8 benchmarks and leads that index at 60. The academy's China Frontier Models module has a dedicated lesson on the full scoreboard.

What topics does the Open Source AI Academy cover?

The course covers Transformer architecture, Meta Llama 4, Mistral, DeepSeek, Qwen, Gemma, Hugging Face, quantization (GGUF, AWQ, GPTQ, EXL2), Ollama, llama.cpp, vLLM, SGLang, LoRA/QLoRA fine-tuning, pre-training from scratch, RLHF/DPO/GRPO alignment, and production MLOps with Docker and Kubernetes.

vLLM is the industry-standard engine for high-throughput production LLM serving. It uses PagedAttention for efficient GPU memory management and continuous batching for >90% GPU utilization.

Do I need expensive hardware to run open-source models?

No. Many models can run on consumer GPUs (e.g., RTX 4090) or even CPUs via llama.cpp. The course covers deployment strategies for every budget, from Raspberry Pi edge devices to multi-GPU production clusters.

Does the Open Source AI Academy include hands-on labs?

Yes. Hands-on terminal labs are built into the lessons - ollama pull, run, and list models, quantize a model to Q4_K_M, and serve it with vLLM using real, vendor-verified commands, with objectives, hints, solutions, and XP rewards. No GPU or sign-up needed.

What happens when you quantize below 3-bit?

Significant quality degradation (the 'quality cliff') — Below 3-bit, models hit a 'quality cliff' where accuracy drops significantly - the tradeoff is rarely worth it.

What is the recommended 'golden standard' GGUF quantization?

Q4_K_M — Q4_K_M offers the best balance of quality, memory savings, and inference speed - it's the default recommendation for most use cases.

Quantization Formats Compared Tutorial | Quantization Mastery

[ ABORT TO HUD ]

SEQ. 1

SEQ. 2

Quantization Formats Compared

📐 Quantization Mastery⏱ 12 min⭐ 125 BASE XP⌨ HANDS-ON LAB

Why Quantize?

A 70B parameter model in FP16 requires ~140GB VRAM. Quantization reduces precision to fit models on smaller hardware while preserving quality.

The Decision Matrix

Format	Best For	Key Advantage	Hardware
GGUF	Local / CPU / hybrid	Runs on anything (CPU, Mac, consumer GPU)	Universal
AWQ	Production GPU serving	Best quality at 4-bit, vLLM optimized	NVIDIA GPUs
GPTQ	Broad GPU inference	Wide ecosystem support, mature	NVIDIA GPUs
EXL2	Maximum speed (single GPU)	Lowest latency for local high-end setups	High-end NVIDIA

GGUF Quality Tiers

Quant	Bits/Weight	Quality	70B VRAM
Q8_0	8-bit	Near-lossless	~70GB
Q6_K	6-bit	Excellent	~54GB
Q4_K_M	4-bit	Great (recommended)	~40GB
Q3_K_S	3-bit	Acceptable	~30GB
Q2_K	2-bit	Quality cliff ⚠️	~20GB

⚠️ The 4-Bit Rule: In 2026, 4-bit quantization is the industry standard. Going below 3-bit causes significant quality degradation (the "quality cliff"). If you have VRAM headroom, prefer Q6_K.

Calibration Best Practice

Post-training quantization quality depends on calibration data. For domain-specific use (medical, legal, coding), always calibrate with a sample of your actual production data rather than generic datasets.

⌨ HANDS-ON LABQuantize FP16 Model to GGUF Q4_K_M

⭐ +200 XP

Convert PyTorch model weights to GGUF format and quantize using the llama-quantize binary.

1Execute llama-quantize on an unquantized GGUF model to produce Q4_K_M output.

lab-sandbox — simulated environment

INFINITY LAB SANDBOX v2.6 — simulated shell
Type the command for the current objective. Helpers: "hint", "solution", "clear".
$

OBJECTIVE 1 / 1 — type "hint" if stuck

KNOWLEDGE CHECK

QUERY 1 // 3

Which quantization format is recommended for production GPU serving with vLLM?

GGUF

AWQ

EXL2

FP16