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ChatGPT"s GPT-5-reasoning-alpha model spotted ahead of launch

GPT-5 might be just a few days or weeks away, as we've spotted references to a new model called gpt-5-reasoning-alpha-2025-07-13. As spotted on X, OpenAI is testing a model called "gpt-5-reasoning-alpha-2025-07-13." This model was finalised on the 13th of July, and it appears to be the final round of testing. "Models: openai/gpt-5-reasoning-alpha-2025-07-13: reasoning_effort: high," one of the code references read. Alexander Wei, a researcher at OpenAI, recently confirmed that GPT-5 is on it

Topics: alpha gpt model o3 openai

New ChatGPT o3-alpha model hints at coding upgrade

ChatGPT's o3 is OpenAI's best model to date because it features reasoning, and it might get even better in the next update. As spotted on X, OpenAI is testing a new "Alpha" variant of the o3 model, which has significant coding-related improvements. In our tests, BleepingComputer observed that o3-alpha is better than o3 in designing web pages, even with simple prompts. Others have spotted that o3-alpha is really good at creating simple web games. o3-alpha This model is called "o3-alpha-respon

Bad Actors Are Grooming LLMs to Produce Falsehoods

It’s one thing when a chatbot flunks Tower of Hanoi, as Apple notoriously illustrated earlier this month, and another when poor reasoning contributes to the mess of propaganda that threatens to overwhelm the information ecosphere. But our recent research shows exactly that. GenAI powered chatbots’ lack of reasoning can directly contribute to the nefarious effects of LLM grooming: the mass-production and duplication of false narratives online with the intent of manipulating LLM outputs. As we wil

Xenharmlib: A music theory library that supports non-western harmonic systems

Xenharmlib 0.3.0 has just been released. Find out what’s new Welcome to xenharmlib’s documentation!¶ Xenharmonic (adj.): Pertaining to music which sounds unlike that composed in the familiar 12 tone equal-tempered scale. —Ivor Darreg Xenharmlib is a generalized music theory library that supports traditional Western and non-western harmonic systems, unconventional microtonal and macrotonal tunings, diatonic and posttonal set theory and non-standard notations. It is easy to use, extendable, an

Why AO3 Was Down

An unofficial sub devoted to AO3. The Archive of Our Own (AO3) offers a noncommercial and nonprofit central hosting place for fanworks. We are proactive and innovative in protecting and defending our work from commercial exploitation and legal challenge. We preserve our fannish economy, values, and creative expression by protecting and nurturing our fellow fans, our work, our commentary, our history, and our identity while providing the broadest possible access to fannish activity for all fans.

Spending Too Much Money on a Coding Agent

On making use of large thinking models. For a year, I’d been coding almost every day with Cursor and Claude Sonnet. Anthropic’s 3.5 and 3.7 Sonnet each rightly earned their dominant place on the programming model charts: they were the least-bad coding models yet. In the earliest days of LLMs, there was tremendous interest in ever-larger model releases. Hype around bigger, slower models has since waned, as Claude 3 Opus, GPT 4.5, and OpenAI o1 – all large and technically impressive model releas

First thoughts on o3 pro

As “leaked”, OpenAI cut o3 pricing by 80% today (from $10/$40 per mtok to $2/$8 - matching GPT 4.1 pricing!!) to set the stage of the launch of o3-pro ($20/$80, supporting an unverified community theory that the -pro variants are 10x base model calls with majority voting as referenced in their papers and in our Chai episode). o3-pro reports a 64% win rate vs o3 on human testers and does marginally better on 4/4 reliability benchmarks, but as sama noticed, the actual experience expands when you t

OpenAI adds the o3-pro model to ChatGPT today

OpenAI is keeping up its rapid-fire pace of new AI releases. The company introduced the o3 and o4-mini models to its ChatGPT platform in April. At the time, the business promised that a pro model of the o3 was on the way, and that version became available today. Both the o3 and o4-mini models are meant to use and combine all the tools under ChatGPT's umbrella. When OpenAI adds the "pro" designation to a model, it's a version that has been built to spend longer answering queries to provide bette

ChatGPT o3 API 80% price drop has no impact on performance

ChatGPT o3 API is now cheaper for developers, and there's no visible impact on performance. On Wednesday, OpenAI announced it's cutting the price of its best reasoning model, o3, by 80%. ChatGPT price reduction This means o3’s input price is now just $2 per million tokens, while the output price has dropped to $8 per million tokens. "We optimized our inference stack that serves o3. Same exact model—just cheaper," OpenAI noted in a post on X. While regular users typically don't use ChatGPT m

Topics: api model o3 openai price

OpenAI Launches Improved Version of Latest Reasoning Model. Here's What It's Best For

OpenAI this week announced an improved version of its o3 generative AI reasoning model, saying it performed better on benchmarks and is designed to spend more time thinking on difficult problems. The new model, called o3-pro, is now available for Pro and Team users in ChatGPT and API users, and will come to Enterprise and Edu users next week. In its release notes, OpenAI said the model is similar to o1-pro, which users favored for its math, science and coding skills. It incorporates improvement

Topics: model o3 openai pro users

With the launch of o3-pro, let’s talk about what AI “reasoning” actually does

On Tuesday, OpenAI announced that o3-pro, a new version of its most capable simulated reasoning model, is now available to ChatGPT Pro and Team users, replacing o1-pro in the model picker. The company also reduced API pricing for o3-pro by 87 percent compared to o1-pro while cutting o3 prices by 80 percent. While "reasoning" is useful for some analytical tasks, new studies have posed fundamental questions about what the word actually means when applied to these AI systems. We'll take a deeper l