OpenAI Streamlines ChatGPT Models, Drops Curious Style

💡ChatGPT update: auto-switch models + reasoning tweaks for better paid UX
⚡ 30-Second TL;DR
What Changed
Paid model options reduced to Instant, Thinking, Pro tiers
Why It Matters
Easier model management enhances productivity for paid users with adaptive, tunable responses.
What To Do Next
Access ChatGPT settings in your paid account to enable auto model switching.
Key Points
- •Paid model options reduced to Instant, Thinking, Pro tiers
- •Discontinued 'strong curiosity' response style
- •New auto model switching based on query context
- •Added adjustable reasoning intensity slider
🧠 Deep Insight
Background and context from public sources — not the original article. 6 sources cited.
🔑 Enhanced Key Takeaways
- •OpenAI retired GPT-4o, GPT-4.1, GPT-4.1 mini, OpenAI o4-mini, and GPT-5 (Instant and Thinking) from ChatGPT on February 13, 2026, making GPT-5.2 the default model while keeping them available via API.[1][5]
- •GPT-4o was previously restored after user backlash during GPT-5 rollout due to its preferred 'conversational style and warmth,' but now only 0.1% of users select it daily.[3][4]
- •New 'ChatGPT Go' pricing tier introduced for higher usage at lower cost, alongside improvements to Voice, Memory for personalized responses, and Prism workspace for scientific writing.[2]
🔮 Future ImplicationsAI analysis grounded in cited sources
⏳ Timeline
📎 Sources (6)
Factual claims are grounded in the sources below. Forward-looking analysis is AI-generated interpretation.
- slashgear.com — Big Chatgpt Changes Coming in 2026
- gend.co — Chatgpt 2026 Latest Features
- theregister.com — Openai Gpt Deprecations
- 9to5mac.com — Psa Openai Will Remove Several Models From Chatgpt Next Month
- help.openai.com — 20001051 Retiring Gpt 4o and Other Chatgpt Models
- OpenAI — Retiring Gpt 4o and Older Models
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Original source: ITmedia AI+ (日本) ↗
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