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Old Zhang's AI Learning
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Old Zhang's AI Learning

AI practitioner specializing in large-model evaluation and on-premise deployment, agents, AI programming, Vibe Coding, general AI, and broader tech trends, with daily original technical articles.

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Recent Articles

Latest from Old Zhang's AI Learning

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Old Zhang's AI Learning
Old Zhang's AI Learning
Jul 14, 2026 · Artificial Intelligence

Discover Codex’s Hidden Features: Browser Integration, High‑Power Model Mode, and More

The article walks through ten lesser‑known Codex settings—including browser capability, unlocking the highest inference strength, importing work from other AI apps, advanced computer control, quick‑snapshot shortcuts, the dormant GPT‑5.3‑Codex‑Spark mode, phone‑to‑Mac remote control, memory/Chronicle preview, and plugin tips—providing step‑by‑step paths and screenshots for each.

AI assistantCodexbrowser integration
0 likes · 6 min read
Discover Codex’s Hidden Features: Browser Integration, High‑Power Model Mode, and More
Old Zhang's AI Learning
Old Zhang's AI Learning
Jul 11, 2026 · Artificial Intelligence

Unsloth’s Dynamic NVFP4 Makes Qwen3.6 Run 2.5× Faster Than NVIDIA’s Official Quantization

Unsloth’s Dynamic NVFP4 quantization (W4A4) lets Qwen3.6‑27B run up to 2.5× faster on Blackwell GPUs while keeping near‑BF16 accuracy, adds FP8 KV‑Cache calibration, provides detailed hardware requirements, benchmark tables, and step‑by‑step deployment guides via vLLM, SGLang or Unsloth Studio.

Blackwell GPUDynamic QuantizationFP8 KV cache
0 likes · 13 min read
Unsloth’s Dynamic NVFP4 Makes Qwen3.6 Run 2.5× Faster Than NVIDIA’s Official Quantization
Old Zhang's AI Learning
Old Zhang's AI Learning
Jul 10, 2026 · Artificial Intelligence

OpenAI’s GPT‑5.6 Arrives, Codex Disappears: A Hands‑On Review of the New ChatGPT

The article examines OpenAI’s GPT‑5.6 rollout, the integration of Codex into the ChatGPT desktop client, the new layered "desktop workbench" (Chat, Work, Codex, Sites), performance quirks, feature details, and five enterprise case studies that illustrate how the Work and Sites modules accelerate real‑world workflows.

AI WorkflowsChatGPTCodex
0 likes · 11 min read
OpenAI’s GPT‑5.6 Arrives, Codex Disappears: A Hands‑On Review of the New ChatGPT
Old Zhang's AI Learning
Old Zhang's AI Learning
Jul 10, 2026 · Artificial Intelligence

NVIDIA Opens 10 Trillion‑Token Dataset to Power AI Agents

NVIDIA has open‑sourced a 10‑trillion‑token training corpus—including the Nemotron‑CC‑v2, Nemotron‑CC‑Math, and 53 million synthetic personas—paired with the Apache‑2.0 NeMo Data Designer pipeline, benchmarked improvements on math and code tasks, and tools for visualizing and generating data for AI agents.

Agent TrainingNVIDIANemotron
0 likes · 13 min read
NVIDIA Opens 10 Trillion‑Token Dataset to Power AI Agents
Old Zhang's AI Learning
Old Zhang's AI Learning
Jul 8, 2026 · Artificial Intelligence

Deploying the Quantized DeepSeek‑V4‑Flash Locally: Performance, Benchmarks, and Tips

This article walks through DeepSeek‑V4‑Flash, a lightweight 284B MoE model with 13B active parameters and 1‑million‑token context, explains its three thinking modes, presents official benchmark results showing Flash can match Pro with higher reasoning budget, and provides step‑by‑step local deployment instructions using Unsloth’s GGUF quantization and llama.cpp fixes.

AIDeepSeek-V4-FlashGGUF
0 likes · 13 min read
Deploying the Quantized DeepSeek‑V4‑Flash Locally: Performance, Benchmarks, and Tips
Old Zhang's AI Learning
Old Zhang's AI Learning
Jul 8, 2026 · Artificial Intelligence

Claude Goes Mobile: Chasing Codex and Working Without a Computer

Anthropic’s Claude Cowork now runs on desktop, web, and mobile, letting tasks continue in the cloud even when the computer is off, and the new usage data shows that over 90% of its real‑world applications are non‑coding work such as business operations and content creation.

AI AgentsAnthropicClaude
0 likes · 11 min read
Claude Goes Mobile: Chasing Codex and Working Without a Computer
Old Zhang's AI Learning
Old Zhang's AI Learning
Jul 7, 2026 · Artificial Intelligence

Does Claude’s New J‑Space Reveal a Glimpse of AI Consciousness?

Anthropic’s recent paper uncovers a “global workspace” inside Claude called J‑space, showing how the model stores and manipulates internal tokens, how altering this space changes outputs, and why this insight matters for AI interpretability, safety, and the debate over machine consciousness.

AI interpretabilityAI safetyAnthropic
0 likes · 12 min read
Does Claude’s New J‑Space Reveal a Glimpse of AI Consciousness?