— Dan Shipper 📧 (@danshipper) 23 avril 2026
LIVE VIBE CHECK: GPT-5.5 IS OUT https://
x.com/i/broadcasts/1
qKVmQVoVwaxB
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— Dan Shipper 📧 (@danshipper) 23 avril 2026
LIVE VIBE CHECK: GPT-5.5 IS OUT https://
x.com/i/broadcasts/1
qKVmQVoVwaxB
…
By
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API pricing will be $5 per 1 million input tokens and $30 per 1 million output tokens, with a 1 million context window. (Remember, you will need less tokens per task than 5.4!)
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We're watching AI evolve in real time. GPT-5.5 isn't just a launch – it's another proof point that the decade of intelligent systems is well underway.
— NVIDIA (@nvidia) 23 avril 2026
Congrats to the entire @OpenAI team on another impressive milestone. 🎉 https://t.co/xmYSJnK93G
We're watching AI evolve in real time. GPT-5.5 isn't just a launch – it's another proof point that the decade of intelligent systems is well underway. Congrats to the entire @OpenAI team on another impressive milestone.

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looks like new Pareto frontiers across everything:
— swyx 🇸🇬 (@swyx) 23 avril 2026
– Context: 400K context in Codex and a 1M in API
– API Pricing: $5/m input and $30/m output tokens.
– Codex improved its own inference speed 20% lol
– First generation co-designed with GB200 and GB300 NVL72
– 82.7% on… https://t.co/J5CL5fKmsq pic.twitter.com/nJG1vubSdN
looks like new Pareto frontiers across everything: – Context: 400K context in Codex and a 1M in API
– API Pricing: $5/m input and $30/m output tokens. – Codex improved its own inference speed 20% lol – First generation co-designed with GB200 and GB300 NVL72 – 82.7% on

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Taking a look at the benchmarks that head the article, one thing becomes clear: it's not a Mythos-level model. It simply follows the continuationist saga we've seen with GPT 5.1, GPT 5.2, GPT 5.4 and now GPT 5.5 So a priori, only the jump in FrontierMath Tier 4 gets me excited

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Vision Banana: Rethinking How AI Models See and Generalize
— Satya Mallick (@LearnOpenCV) 23 avril 2026
In this episode of Artificial Intelligence: Papers and Concepts, we explore Vision Banana, a concept that challenges how vision models learn and generalize from visual data. Instead of focusing purely on performance… pic.twitter.com/vgp0LQbMFi
Vision Banana: Rethinking How AI Models See and Generalize In this episode of Artificial Intelligence: Papers and Concepts, we explore Vision Banana, a concept that challenges how vision models learn and generalize from visual data. Instead of focusing purely on performance
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Also, a ton of new Codex features coming soon! Fun little bundle w/the new model.
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GPT-5.5 is here! We hope it's useful to you. I personally like it.
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It is smart and fast; per-token speed matches 5.4 and it uses significantly fewer tokens per task. In my experience, it "gets what to do". Rolling out today in ChatGPT and Codex. We are working with API customers on security and safeguards and plan to launch in API very soon.
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Is there such a thing as a stable product-market fit in the age of AI? 🤔
— Predibase by Rubrik (@predibase) 23 avril 2026
On this episode of Dev in the Details, Dev Rishi (GM of AI @RubrikInc) and Varun Badhwar (Founder of @EndorLabs) dive into how AI is evolving, keeping AI Agents and their code secure, and more 👉… pic.twitter.com/qo5HnAhUeQ
Is there such a thing as a stable product-market fit in the age of AI? On this episode of Dev in the Details, Dev Rishi (GM of AI @RubrikInc
) and Varun Badhwar (Founder of @EndorLabs
) dive into how AI is evolving, keeping AI Agents and their code secure, and more