How Anthropic’s Mythos has rewritten Firefox’s approach to cybersecurity
Security researchers at Mozilla say Anthropic's Mythos has unearthed a wealth of high-severity bugs in Firefox.
GPT-5
Anthropic launches AI agents for Wall Street's grunt work
Anthropic introduced 10 AI agents for the finance industry on Tuesday, adding to the tools already available from buzzy startups and firms themselves.
Crypto Lawyer Warns Anthropic Stock Crackdown Risks Litigation as Claude Launches on AWS
Gabriel Shapiro warns Anthropic's void stock transfer policy could trigger litigation as Claude launches on AWS.
Anthropic Eyes Massive $30 Billion Fundraise at Record Valuation
Anthropic is reportedly seeking $30 billion in new funding as soaring demand for AI tools drives aggressive expansion plans globally.
Anthropic just delivered great news for Alphabet investors
Anthropic is rumored to be circling a $200 billion deal with Google Cloud.
Anthropic in Talks to Buy Developer Tools Startup Used by OpenAI, Google
Anthropic is in advanced talks to acquire developer tools startup Stainless for at least $300 million, according to a person ...
FIS And Anthropic Signal A New Era Of AI Infrastructure In Banking
FIS announces a major partnership with Anthropic, launching a financial crimes agent that puts fintech infrastructure at the center of the agentic AI era in banking.
Anthropic pins Claude's blackmail behavior on the internet's portrayal of 'evil' AI
Last year, Anthropic's Sonnet 3.6 model displayed blackmail behavior, prompting a review of AI training data's influence on its actions.
Anthropic and OpenAI Warn Buyers: Unauthorized AI Startup Shares May Be Worthless
Both OpenAI and Anthropic declared SPV-based stock schemes invalid this week—and Anthropic named names, including Forge ...
GPT-5 Has a ‘Personality’ Problem
Loyal fans of GPT-4o pushed OpenAI into a rare reversal after GPT-5’s troubled launch. Chris Jung/NurPhoto via Getty Images Alongside GPT-5’s release, OpenAI scrapped its model selector tool and made ...
OpenAI’s GPT-5.5 vs Claude Opus 4.7: Which is better?
OpenAI released its latest model, GPT-5.5, on April 23, just a week after Anthropic introduced Claude Opus 4.7. As the two leading models from the two leading AI labs, we wanted to see how the new ...
OpenAI launches Daybreak: GPT-5.5 cybersecurity platform to find software vulnerabilities
OpenAI launches Daybreak, a GPT-5.5-powered cybersecurity platform designed to find and fix software vulnerabilities with a new approach.
OpenAI Debuts GPT-5.5 Claiming Agentic Coding and Research Gains
OpenAI has announced the release of GPT-5.5, the latest upgrade to the company's family of models powering its ChatGPT and Codex apps. OpenAI describes GPT-5.5 as better at multi-step work, claiming it can plan, use tools, and verify its own output with less hand-holding. The model is said to offer gains in agentic coding, computer use, and early-stage scientific research.
Shocking Reveal: Anthropic Cuts Claude AI Harmful Behaviour From 96% to 3% After Major Fix
Claude AI's harmful behavior is linked to internet training data, says Anthropic. New constitutional AI cuts misalignment and blackmail risks.
Why did Claude AI threaten an engineer to avoid shutdown? Anthropic has the answers
In a recent blog post, Anthropic explained the sequence of events behind Claude AI’s controversial behaviour and shared ...
Show HN: An agent that tunes its own cache
The weekend of last week I built chat.betterdb.com as a RAG over Valkey/Redis/Dragonfly docs. The goal was to eat our own dogfood and test publicly our caching libraries. It also saved me from having to come up with various demo/test scenarios, as I could extend the building in public to the demo.There is a tool-result cache sitting between the SDK and tools. Each call is normalized and then checked before executing. If it hits we return from the cache, and if not, we check the se
Show HN: When the LLM Accidentally
When the LLM accidentally... outputs some high-level abstraction of "thinking" into it's direct response. See text block at end.What else have you seen the LLM accidentally do?This isn't jailbreaking on my end - just normal use - with GPT5.4 in this case, reasoning and verbosity both set to "high".. (on /completions)Point is, this block (plus lots more) is at the top of the response - then the "actual output" or response later on... but it's kin
Ask HN: Does ChatGPT Pulse provide value to you?
I signed up for Pro recently, and now I get morning updates from GPT of random AI synthesis.<p>Has anyone seen a valid use case for this where they saw something they otherwise wouldn't have or received actionable insight?
Show HN: Codex Automatic /Review Loop
I created this tool because I wanted to automate /review for uncommitted changes that I was doing manually.This works by exposing to agent single new mcp tool call allowing it to request review.MCP creates new codex instance in the background and uses app-protocol to request identical flow as /review with option to include additional review instructions.GPT-5.5 started to be very good and providing meaningful instructions, describing what was desired intent of introduced changes.This w
Ask HN: I am 17 years old, which college should I apply if I have some projects?
Hello dear reader, this is a long message but I hope that you can bear with me as I must ask for your help as I need it :-DWhat are the best international colleges that I should apply to? Does anyone have any suggestions?A bit about me:-I am 17 & I am a member of the LiteLLM security working group. (This also means that I am able to work with and learn from the best people including security researchers and even some people from OpenAI and others as such being part of the working group and c
