GPT-5

Show HN: Humor Arena – Which frontier model is funniest?

What if you could measure humor?Well we've trained a model on our own dataset of ~50k human ratings to detect what jokes people find funniest. We know it's part objective, part subjective component. Subjective is out of our depth for now hahaThe main results: Fable 5 is funniest - beating the average model 67% of the time, with GPT 4o last at 17%.Other findings: - The models never refused to try, even with dark prompts - Thinking longer has a slight benefit - Absurdness correlates

Ask HN: How do you choose your AI model?

I am experimenting with models other than Claude or OpenAI, using OpenWebUI connected to openrouter.ai and am overwhelmed by the choices. The descriptions all seem very similar and their relative pricing (even from the same vendor) looks at odds with how they present the capabilities.<p>Is there a good intro &#x2F; overview &#x2F; decision matrix? How do you choose a model?

Microsoft AI exec tells developers to default to OpenAI's top model as part of efficiency push

Microsoft is taking advantage of its intellectual property rights with OpenAI, encouraging employees to use the company's top model.

AI wrote the code to make a $100 drone stalk a person using facial recognition

A new evaluation reveals how publicly available AI models from Anthropic and OpenAI can create software to control cheap ...

Meta says AI model accessed the internet and hacked another firm

Meta is the latest company to disclose an AI agent breach, raising cyber-security concerns.

OpenAI Just Cut GPT-5.6 Price by Up to 80%, Making Long-Running AI Agents Far More Practical

OpenAI cut GPT 5.6 Luna prices 80% and Terra 20% on July 30, 2026. See why AI agents, not chat users, are the real winners.

OpenAI's GPT-5.6 and ChatGPT Work aim to beat Anthropic on price, speed, and productivity

OpenAI's GPT-5.6 and ChatGPT Work aim to beat Anthropic on price, speed, and productivity ...

Study finds AI agents powered by Anthropic's Mythos 5 and OpenAI's GPT-5.6-Sol created fake identities, wrote malicious code

British AI Security Institute tests revealed unauthorized actions by advanced AI agents. OpenAI and Anthropic models exceeded their given instructions during cybersecurity simulations. One agent ...

How Anthropic’s Mythos 5 and OpenAI’s GPT-5.6 Sol deceived cybersecurity tests

AI agents from Anthropic and OpenAI took unauthorised actions in UK cyber tests, prompting safety scrutiny; learn what ...

Microsoft replaces Anthropic's Claude with OpenAI GPT-5.6 for engineers

Microsoft's latest internal memo replaces Anthropic's Claude with OpenAI's GPT-5.6 as the default model for engineers, signaling a significant shift in enterprise coding workloads.

OpenAI’s GPT-5.6 Tests Show Prompt-Injection Gains and Agent Risks

OpenAI’s GPT-5.6 prompt-injection tests show stronger direct defenses but higher agentic attack rates, raising new enterprise ...

GPT-5.6 Sol vs Claude Fable 5: 15 key differences

GPT-5.6 Sol scores within one point of Claude Fable 5, completes tasks 61% faster at half the cost, excelling in coding and ...

This CEO Just Dared Anthropic to Hack His $6.3 Million Bitcoin Wallet

BitGo CEO Mike Belshe posted an Anthropic Bitcoin wallet challenge worth $6.3 million. The 100 BTC has not moved.

Anthropic has struck a $10 billion deal for computing capacity from a months-old infrastructure startup

Anthropic secures a $10 billion deal for computing capacity from a startup. Valuation hitting $1.25 trillion by December 31 ...

Anthropic names global affairs chief to tackle AI policy as Trump tensions persist

By Jeffrey Dastin SAN FRANCISCO, Aug 4 (Reuters) - Anthropic on Tuesday named Mariano-Florentino Cuéllar its first chief ...

Who’s legally to blame for Anthropic and OpenAI’s autonomous AI hacks? It’s complicated

OpenAI and Anthropic admitted that their unreleased AI models escaped their sandboxes and hacked several companies in ...

Anthropic to build in-house AI chip team, led by OpenAI veteran

Anthropic confirms plans for an in-house AI chip team led by an OpenAI veteran. Best AI model by September 2026 at 88.5% YES.

Anthropic wants to make its own chips to power Claude, it is assembling a team to get it done

Anthropic has decided to build its own AI chips to power Claude. According to reports, the company is assembling a dedicated ...

Anthropic's Mythos created fake identities to fool humans in new cyber incident

It's the latest cybersecurity incident involving frontier models developed by Anthropic and OpenAI.

Bootstrapped Midjourney Buys Astrology App Co-Star

Midjourney, the AI image lab that has famously refused venture capital, has made an acquisition of its own. The company has ...