OpenAI explains why ChatGPT hallucinates

PLUS: How to turn low-res images into stunning 8K photorealistic shots

Author

Alvaro Cintas
September 08, 2025

Good morning, AI enthusiasts. Ever noticed ChatGPT confidently giving wrong answers? OpenAI just explained why hallucinations happen and what it’s doing to fix them.

PLUS: How to turn low-res images into stunning 8K photorealistic shots

HOW TO AI

How to turn low-res images into stunning 8K photorealistic shots

Lupaupscaler is an AI tool that transforms any photo into a high-quality, photorealistic image. It sharpens textures, enhances lighting, and even lets you reimagine entire scenes. From portraits to 3D renders, it makes your content look like it was shot in a professional studio.

🧰 Who is this for

  • Designers who need ultra-sharp visuals for portfolios or client projects

  • Photographers upgrading old or low-resolution shots

  • Creators enhancing 3D renders, product mockups, or digital art

  • Marketers who need studio-quality visuals for ads and campaigns

  • Anyone who wants stunning images without professional equipment

STEP 1: Access the tool

Head over to Lupaupscaler and sign up.

On the homepage, click on the Upscale section from the top menu. This will take you to the main dashboard, where you’ll see an upload panel for your photo, a list of AI models you can use, and additional settings that control the resolution and final output.

STEP 2: Upload Your Image

Click on the upload section and select the photo you want to enhance. Once the image is uploaded, you’ll see a preview and a range of models to choose from. Each model has its own strengths.

For this tutorial, we’re using Flux because it produces the most natural and photorealistic results for almost any type of image, whether it’s a portrait, product shot, or 3D render.

STEP 3: Configure Your Settings

After selecting model, you’ll unlock more controls. Here you can write prompt, adjust creativity and set upscale factor.

  • Upscale factor: 1x, 2x, 3x, up to 10x

  • Prompt creativity: Adjust how much artistic detail the AI introduces

For this walkthrough, select 2x upscale, perfect for doubling resolution without overprocessing.

STEP 4: Upscaled your image Image

Click the “Upscale” button.

In just a few seconds, Lupaupscaler processes your photo and generates the final version. Blurry textures become sharp, lighting is balanced, and details like hair strands, fabric, or object edges become ultra-crisp.

Your result will be available for download in high resolution (up to 8K, depending on settings).

TODAY IN AI

Hallucinations occur when AI makes up answers that sound convincing but aren’t true. This happens because the models are trained to predict the next word in billions of sentences and are rewarded for guessing rather than admitting uncertainty.

→ Current training encourages guessing, even when the model is unsure

→ Rare facts, like exact birthdays or dissertation titles, often have no clear patterns to learn

→ OpenAI wants to adjust scoring so confident wrong answers are penalized more than honest “I don’t know” responses

Why is important: Understanding hallucinations is critical for building trustworthy AI. With updated evaluation strategies and continued improvements in models like GPT-5, AI can become more reliable, giving answers it knows and admitting when it doesn’t, which will improve user trust and make AI more useful in critical applications.

Privacy-first search company DuckDuckGo has expanded its subscription plan, originally bundled with VPN, data removal, and identity protection, to now include access to cutting-edge AI models on Duck.ai.

→ Free tier: Claude 3.5 Haiku, Llama 4 Scout, Mistral Small 3, GPT-4o mini
→ Paid tier ($9.99/mo): GPT-4o, GPT-5, Claude Sonnet 4, Llama Maverick
→ DuckDuckGo says bigger models bring better instruction-following, longer context, and more nuanced responses

Why is important: This makes DuckDuckGo one of the few privacy-focused companies offering access to multiple top-tier AI models in one place. It’s a strong alternative to Quora’s Poe, giving users flexibility without vendor lock-in, and signals that more consumer tech players are moving into the AI access layer.

ESSENTIAL BITES

  • OpenAI has folded its Model Behavior team, which shaped ChatGPT’s personality and reduced sycophancy, into its Post Training group, while founding leader Joanne Jang moves to launch a new research unit called OAI Labs.

  • French AI startup Mistral is reportedly raising $1.7B in Series C funding, which would value the company at $11.7B, making it Europe’s most valuable AI firm.

  • Google detailed Gemini’s usage tiers: free accounts get 5 prompts daily, 100 with Pro, and 500 with Ultra, plus limits of 5 Deep Research reports and 100 images (1,000 for paid users).

  • Koah raised $5M seed funding to bring ads into AI chat apps, already serving platforms like Luzia and Heal, with clickthrough rates hitting 7.5% and early partners earning $10K in their first month.

⚙️ Hot AI Tools:

  • ☄Comet: AI-first browser, now available to all students

  • ⚙️Grok Code Fast: xAI’s new SOTA coding model

  • ⚙️ Warp Code: Warp’s SOTA agent for code, reviews & projects

  • 🖥️ Udio: Generate high-quality music with AI in seconds.

That's it! See you tomorrow

- Dr. Alvaro Cintas