Rumor Roundup: OpenAI Dev Day, Claude Sonnet 5.5, Gemini 4 Pro in One Week
koltregaskes · x · 2026-09-28
A tweet rounding up rumors of a jam-packed week in AI, possibly including:
- OpenAI Dev Day
- An always-on 'o' GPT agent
- A first-ever $500-600 ChatGPT plan
- An ultrafast inference mode
- Claude Sonnet 5.5
- Gemini 4 Pro
- Nano Banana 2.1
- Something new from Runway
- First signs of Kling 4.0
- More on Seedance 2.5 Premium
The author notes some are less likely than others and excluded a rumored OpenAI hardware release as seemingly far off. All items are unverified speculation.
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