★ Featured: Transformer Math & CPU SLM Lab Series
50 interactive labs covering matrix multiplication, softmax, attention, KV cache, gradient flow, CPU memory budget, and the full SLM-on-CPU lifecycle. Paired with 50 deep-dive articles.
Explore all 50 labs →Cloud & GPU Planning Tools 3 labs
Cloud GPU Pricing Comparison
NEWCompare H100/H200/A100/L40S/RTX 4090/B200 across AWS, GCP, Azure, OCI, CoreWeave, Lambda, RunPod, Vast.ai. Monthly cost + break-even.
Cloud Service Matcher
NEWFind AWS/GCP/Azure/OCI equivalents. 80+ service mappings across compute, storage, networking, DBs, AI, security, ops.
Prompt Engineering, LLM Security & Training Tools 8 labs
Prompt Injection Scanner
NEWClient-side heuristic scanner. 16 signal families. DAN, exfil, SSRF, base64, homoglyphs. Attack presets + risk score.
JSONL Training Data Validator
NEWValidate fine-tuning JSONL for OpenAI, Anthropic, Alpaca, ShareGPT, DPO. Cost estimator included.
Chat Template Renderer
NEWSee tokens each model sees. Llama 3, Qwen, Claude, ChatML, Mistral, Gemma, Phi, Vicuna, DeepSeek.
LoRA + QLoRA Memory Calculator
NEWEstimate GPU memory for full/LoRA/QLoRA. Fit models to your GPU. Rank + seq + batch trade-offs.
GGUF Quantization Chooser
NEWRight GGUF quant for your RAM. Q4_K_M to F16. Speed vs quality vs size. Ollama-ready.
RAG Chunker Visualizer
NEWTest chunking strategies. Fixed, paragraph, sentence, recursive, markdown. Overlap highlighted.
SLM Selector
NEWCompare 20+ small models by size, license, MMLU. Phi, Gemma, Qwen, Llama, DeepSeek, Mistral filtered.
AI / ML / Transformers 75 labs
Transformer Math & CPU SLM ★
50Matmul, softmax, attention, KV cache, training, CPU mechanics, sampling.
LLM Visualizations
10Original deep-dives into transformer internals (tokenization, attention, QKV, softmax).
Large Language Models
5Temperature, top-k/p, KV cache memory, speculative decoding, attention masks.
Transformer Internals
5Multi-head attention, positional encoding, FFN, MoE routing, RMSNorm.
General AI
5Embedding similarity, gradient descent, k-NN, decision boundaries, RAG pipeline.
Quantization
5FP16/INT8/INT4, SmoothQuant outliers, GGUF format, perplexity vs bit-width.
MCP Protocol
5Message flow, tool registry, capability negotiation, server lifecycle, OAuth.
Distributed Systems & Infrastructure 35 labs
Distributed Systems
5Raft election, gossip spread, vector clocks, quorum reads/writes, partition tolerance.
Apache Cassandra
5Token ring, consistency levels, compaction strategies, tombstones, hinted handoff.
System Design
5Rate limiter, circuit breaker, load balancer, cache patterns, sharding.
Databases
5B-tree, MVCC, replication lag, connection pooling, pgvector ANN.
Streaming Systems
5Kafka partitions, consumer lag, exactly-once, stream-table duality, backpressure.
Concurrency
5Producer-consumer, lock contention, work stealing, race conditions, virtual threads.
Observability
5SLO burn rate, percentile latency, trace sampling, alert fatigue, golden signals.
System Simulations
5Token bucket, ring buffer, consistent hashing, TCP congestion, ABR ladder.