The rapid advances of AI waits for no-one!
The mighty ChatGPT has now shifted from V4 to 5, so here’s a summary of the most significant and impactful updates. At Fenti Marketing, we don’t use ChatGPT to write content for ourselves or clients – we actually believe the human-led approach simply cannot be replaced – however, AI is super useful for informational queries, like collecting data for research, so in that vein there are some welcome improvements with the platform.
What’s changed with the world’s leading LLM?
Well, quite a bit, it turns out. OpenAI’s latest model, GPT‑5, promises a host of enhancements over its predecessor, including better reasoning, greater speed, enhanced multimodal integration, and deeper personalisation. Our content writers at Fenti are humans, writing engaging content (like this!) that resonates with other humans! But there’s a time and place, such as data gathering and research for example, to utilise time-saving tools. So here’s the skinny on the new improvements you’ll get with ChatGPT-5.
Unified architecture and automatic routing
GPT‑4 required users to pick between variants like GPT‑4 Turbo or 4o for different tasks. GPT‑5, meanwhile, employs a ‘unified model system’ with internal routing: it decides whether to apply fast or deeper reasoning in real-time. Multiple versions exist under the hood – standard, mini, nano, thinking, and thinking‑pro – deployed transparently depending on query complexity.
Smarter reasoning and reduced hallucinations
No, not a psychedelic acid trip…GPT‑5 brings considerable improvements in accuracy and logical coherence. Benchmark data show up to 45% fewer factual errors, compared to GPT‑4, with error rates dropping even further when ‘deeper thinking’ is applied. It is also better at admitting uncertainty when it can’t answer, rather than making things up (a worrying trend across early AI).
Processing power, speed and efficiency
GPT‑5 thinks more deeply AND more efficiently. It achieves better outcomes using 50‑80% fewer computational tokens, making it faster and more cost-effective.
Superior coding, writing and health support
GPT‑5 significantly outperforms GPT‑4 in coding, with high benchmark scores and streamlined debugging. Front-end code and even full apps or games from a single prompt are possible. Creative writing and structural ambiguity are handled more gracefully, sustaining poetic or essay-like structures with fluency. It also delivers better health-related guidance, scoring much higher on HealthBench and offering proactive, context-aware responses (though not a substitute for medical advice, obvs!).
Massive context window
GPT‑5 supports a vast context window, reportedly up to 256,000 tokens – a huge leap from GPT‑4’s 32K max. This enables seamless handling of long-form content like entire documents, lengthy conversations, or codebases without losing earlier context. Fenti’s advice, though, is to remember AI doesn’t have YOUR voice or personality – your two biggest strengths!
Multimodal and customisable interactions
GPT‑4 offered limited multimodal features, but GPT‑5 enhances text understanding and generation and supports images, audio and they are looking at future video iterations, too. Voice interactions, colours in conversation bubbles, UI themes, and built‑in personalities (Cynic, Robot, Listener, Nerd) are all now possible, making the experience feel more personal.
Broader availability and safer responses
GPT‑5 is more widely available and free users can access it (though with usage caps). Plus, Pro, Team, Enterprise, and EDU have wider and deeper access, with GPT‑5 Pro reserved for high-usage tiers. It also introduces ‘safe completions’ – responses that provide partial or cautious answers rather than reckless hallucinations.
What’s the next chapter of AI look like?
Well, GPT‑5 marks a major refinement in ChatGPT’s evolution – delivering smarter reasoning, much longer memory, faster and more efficient performance, more creative code and writing capabilities, richer multimodal and personal experiences, and safer, more trustworthy interactions. It feels less like a separate tool, and more like a refined, reliable AI companion.
With such rapid progression through the previous iterations, can you imagine where we’ll be by the time ChatGPT-10 kicks in? “I’ll take my coffee with cream, please,” will be my daily morning request to my AI-piloted droid. Between now and then we anticipate voice prompt and image to video to become more widespread and finely tuned. As ever, we’ll keep you posted every step of the way.
If you’ve made it this far and want to boost your marketing game, we’re here for you – let’s chat.
