Why ChatGPT becomes less useful the more you use it, 6 reasons why the experience will decline in 2026

In early 2026, many old ChatGPT users began to complain about the same problem: why it became increasingly difficult to use. Answers have become shaky, responses have become slower, restrictions have increased, and prices are still rising. Hundreds of similar complaints can be found on Reddit, Twitter, and Zhihu. This is not an individual’s illusion, but a real change in OpenAI’s product strategy and cost structure. This article sorts out the 6 most specific reasons, coupled with verification methods, to give you an objective judgment.

The data sources of this article include OpenAI official announcement, ChatGPT user forum, third-party benchmark sites (such as ArtificialAnalysis, LiveBench, Chatbot Arena), and long-term comparison of personal multiple accounts. It's not about hacking OpenAI or bragging about other companies. It's about spreading the current situation and letting you decide whether to change tools.

Reason 1: Frequent model switching leads to fragmented experience

From 2024 to 2026, OpenAI changed the default model 4 times. GPT-4 changed to GPT-4 Turbo, changed to GPT-4o, changed to GPT-5, and then to GPT-5.1 in January 2026. There are gaps in the user experience every time you switch to the default model. Especially people who are familiar with the answering style of a certain model will find that it "suddenly becomes stupid" or "suddenly becomes verbose".

When GPT-5 was launched, officials said that the parameters were an order of magnitude higher than GPT-4, but the measured short context task performance was not as good as GPT-4 Turbo. OpenAI later explained that GPT-5 prioritizes optimizing long context and tool calls, and pure conversational capabilities are a secondary goal. This trade-off feels bad to the average user.

If you want to get back the old experience, paying users can switch back to GPT-4 Turbo or o1 in the Model picker (these two still retain access rights), but ChatGPT Plus $5 users no longer provide direct access to GPT-4, leaving only the GPT-5 series.

Reason 2: Tool calls interrupt conversation fluency

GPT-5 turns on the Tool use mode by default. When encountering uncertain problems, it will actively call tools such as web search, Python code, and image generation. Theoretically, the answer is more accurate, but the actual experience is that many simple questions are slowed down by excessive searches, and the first 10 seconds of each answer are spent in circles.

For example: If you ask "Today's RMB to US dollar exchange rate", in the GPT-4 era, you will directly give an approximate number. GPT-5 will first search the web, read 3 websites, and comprehensively collect the data. Accuracy is 5% better but response time drags from 2 seconds to 15 seconds. Dialogue pacing for everyday use is completely broken.

ChatGPT Plus users can turn off Auto tools in GPT-5 settings, but after turning it off, they lose the ability to search the web. Either endure the slowness or give up the function, there is no intermediate gear. This is a flaw in the design of GPT-5.

Reason 3: Security policies are becoming more and more conservative

OpenAI will begin strengthening its content moderation strategy in the second half of 2025. The same question can be answered directly in 2024, but "Sorry, I can't discuss this topic" appears frequently in 2026. Topics involving medical, legal, psychological, emotional, and sensitive areas are most obvious.

Actual measurement comparison: Ask "How to understand the political stance of [a certain public figure]", GPT-4 will objectively analyze the pros and cons. GPT-5 directly avoided saying that it was "inconvenient to make political comments." For the same problem, Claude Sonnet 4.6 will give a positional but well-founded analysis, and the experience gap is huge.

This conservatism is related to regulatory pressure and business risks. As a leading company, OpenAI is closely watched and would rather cut off some functions to ensure safety. But for users who pursue depth of knowledge, AI assistants become cryptic customer service robots.

Reason 4: Tighter rate limits and more black-box quota calculations

ChatGPT Plus in 2024 is GPT-4 80 messages per 3 hours. In 2026, it will become GPT-5 200 items per week + GPT-5 Thinking 50 items per week. This translates to the daily available quota being halved. Heavy users are often throttled in the afternoon and cannot continue until the next day.

There is also the phenomenon of "hidden deductions" in quota calculation. For the same problem, if GPT-5 automatically calls the tool, it will be counted as one message, but it consumes 4 to 5 token calls internally, and the impact on the account is equivalent to sending 5 messages. OpenAI has not made this conversion formula public, and users can only explore it based on their feelings.

Free user quotas are tighter, reducing from 30 GPT-4o per day in 2025 to 10 GPT-5 per day in 2026. Basically it can only be tried and not used as a productivity tool. This is OpenAI's strategy to guide free users to paying, but it is very unfriendly to students and explorers.

Reason 5: Memory function becomes a burden

In 2024, ChatGPT will add a Memory function to allow AI to remember user preferences. The original intention is to personalize conversations, but in fact many users find that the memory is messed up: some temporary information is remembered as long-term preferences, resulting in subsequent conversations frequently carrying irrelevant context.

For example: You asked "I want to learn Japanese" one time, and Memory saved "I want to learn Japanese" in it. A month later, if you ask "Recommended weekend activities", the AI ​​will suggest "Since you want to learn Japanese, I recommend watching Japanese dramas". The problem is that you have given up learning Japanese a long time ago, but AI will not forget on its own initiative.

To clean up, you need to manually go to Settings → Personalization → Memory and delete each item. If the list exceeds 100 items, you will experience a crash. It is recommended to either turn off Memory completely or clean it regularly monthly. The essence of this design is to push state management to the user.

Reason 6: Prices are rising and cost-effectiveness is declining

ChatGPT Plus will remain at $20 per month in 2023 until 2025, rising to $25 in January 2026. Team version increased from 25 to 30. API price Although GPT-5 is cheaper than GPT-4, Plus users cannot use the API discount, but are pushed up by the subscription price.

Compared with the same period, Claude Pro is still US$20, Google Gemini Advanced is US$20, and the DeepSeek R1 web version is basically free. OpenAI is not the one with the largest price increase (Anthropic has also increased its price), but the decline in overall experience + the price increase have made the price/performance ratio significantly behind.

If you're just writing, revising articles, and asking questions, Claude's $20/month experience is significantly better. If you need image generation Gemini Advanced's built-in Imagen 4 is cost-effective. If you program heavily Cursor's $20 monthly subscription already covers large models. ChatGPT Plus is no longer the default recommendation.

Should I change tools?

Not necessarily replaced. If your workflow is deeply bound to the ChatGPT plug-in (GPT Store, Custom GPT), the cost of switching out will be high. If you only use the most basic conversational features, it's okay to stay, but manage expectations.

The most practical approach is not to rely solely on one. I recommend having three free accounts of ChatGPT, Claude, and Gemini in your daily workflow at the same time, and compare whose answer to the same question is most suitable to you. Just look at it for a week and you’ll have a clear idea of ​​your actual preferences and the best combination of tools for different tasks.

Heavy users can consider subscribing to the combination of Claude Pro and the free version of ChatGPT. The monthly cost of US$20 already covers 90% of scenarios. The remaining extremely long contexts can be replaced with the free version of Gemini. This combination is already being used by many content workers in 2026.

Alternatives Overview

Claude.ai is suitable for writing, long document analysis, and answers that require objective and in-depth answers. Fast response, stable content quality, and moderate security policy. The $20/month Pro version offers virtually unlimited use.

Google Gemini is suitable for scenarios that require Internet search + image generation + Google Family Bucket integration. The $20/month Advanced version includes Imagen 4 and Veo 2. The response speed is much faster than ChatGPT.

DeepSeek has stable domestic access + free + good Chinese optimization. Not as good as GPT-5 in quality but adequate for daily use. If you have a tight budget or cannot stably install a proxy, DeepSeek is your first choice.

The Mistral and Llama series are suitable for scenarios that require local deployment or where privacy is sensitive. Quality is a notch below top commercial models, but completely controllable.

long term

ChatGPT will not disappear. OpenAI’s engineering capabilities and resource accumulation are still the first in the industry. However, the AI ​​assistant market has changed from "OpenAI alone" to "multi-model and multi-scenario coexistence". It’s more realistic to think of ChatGPT as a hammer in your toolbox rather than a Swiss Army Knife.

OpenAI’s product direction in 2026 focuses on the Agent model and the enterprise market. The investment in ordinary consumer-level ChatGPT is relatively low. If you are not a heavy Agent user, you may gain more from paying attention to updates from Anthropic and Google than from OpenAI.

Tucao is a way for users to express their expectations. Behind the saying "the more you use it, the harder it becomes to use" it's often because the product direction has changed and users can't keep up. After seeing the trend clearly, choosing tools rationally is more useful than complaining. AI tools are updated so quickly that it is completely normal to change the main tool every three months.

FAQ

Is ChatGPT Plus still worth subscribing to?

Look at the scene. Worth it for users with heavy image generation needs or deep binding to GPT Store. The user cost performance of pure text dialogue has been surpassed by Claude Pro. It is recommended to stop using the free version for a month and compare it with the Claude free version before deciding whether to resubscribe.

Why GPT-5 answers are shorter than GPT-4

GPT-5 defaults to reasoning mode, using more tokens for implicit thinking, and the output is streamlined. You can force the output of longer content by adding "Please provide detailed analysis and examples in your answer" in Settings → Customize → Custom instructions.

ChatGPT is becoming more and more conservative. How to break it?

ChatGPT Plus users can try GPT-4 Turbo (still accessible), which has looser security policies than GPT-5. Or cut to Claude Sonnet 4.6. Claude is obviously more willing to expand when it comes to opinions, analysis, and sensitive topics. There is no way around it for free version users.

Can ChatGPT be used normally in China?

The official domain names chat.openai.com and chatgpt.com are blocked in mainland China and require a stable proxy. OpenAI does not accept registration of mobile phone numbers from mainland China, and national identity verification has become stricter. Domestic users use DeepSeek or domestic models which are more stable.

Should the Memory function be turned off?

It is recommended to turn it off or clean it regularly every month. After the Memory list exceeds 50 items, the quality of the dialogue will significantly decrease, and the AI ​​will contaminate new questions with irrelevant old context. Settings → Personalization → Memory usually makes the experience better when turned off.

Whether a tool is useful or not depends on actual long-term use. ChatGPT is still a product worth using but it is no longer the absolute best solution. It makes more sense to look at several models and compare them carefully to find the combination that suits you best, rather than getting hung up on a particular one.