GPT-4
Advanced large language model developed by OpenAI, succeeding GPT-3.5. Excels in complex reasoning, code generation, and multi-modal tasks.
- Hallucinations: GPT-4 can generate ai-hallucinations (plausible but factually incorrect outputs), a widespread issue not limited to minor bugs. The YouTube Summary Report (20cal 03-06, Gemini 2.5 Flash) details this pervasive problem in LLMs.
- Training Cost & Quantisation: GPT-4’s 2023 training cost was estimated at $78 million (Sam Altman claimed higher), highlighting LLM training’s economic challenges. 4-bit quantisation reduces computational costs by enabling 4-bit precision training, as explored in Julia Turc’s 2026 video.
2026 04 14 AI Hallicinations
- 2026-04-24 2026-04-24-DeepSeek-V4-Next-Gen-Open-Source-LLM-Performance-and-Efficiency-Analysis ← Deepseek V4 Next Gen Open Source Llm Performance And Efficiency Analysis
- 2026-04-22 2026-04-22-OpenAI-GPT-Image-2.0-Evaluating-Next-Gen-AI-Image-Generation-Capabilities ← Openai Gpt Image 2.0 Evaluating Next Gen Ai Image Generation Capabilities
- 2026-04-08 2026-04-08-TurboQuant-Extreme-Compression-for-Local-LLM-Efficiency-and-Context ← Turboquant Extreme Compression For Local Llm Efficiency And Context