Arunkumar Mahendran

MAA 👤 Engineer 💻 Caffeine enthusiast by necessity ☕ Embracing life's coding challenges one cup at a time.

[Anthropic @AnthropicAI]

Claude Fable 5 will be available again globally tomorrow.

After a series of productive conversations with the US government, we're redeploying the model with a new set of classifiers to target and block more cybersecurity tasks. In the near term, some routine tasks like coding and debugging will fall back to Opus 4.8. We’ll continue to refine these classifiers over the coming weeks to reduce false positives and better distinguish genuine misuse from legitimate requests.

We’ve also begun drafting a consensus framework—with Amazon, Microsoft, Google, and other Glasswing partners—for assessing the severity of AI jailbreaks and how AI developers should respond to them. We invite other industry partners and model providers to join us in this effort.

Finally, we’re scaling up our collaboration with the US government on model testing and safeguards. This will include pre-release access to models and safeguards for evaluation, information sharing on jailbreaks and misuse, and dedicated resources for joint research.

Thank you to our users for your patience, and to our partners across the government, industry, and the research community who worked alongside us to make Fable 5 available again.

Read our full blog: https://t.co/VHyum831ri

[Arunkumar Mahendran @arunmahe]

@praddy06 True.. Awake witnessing this

[Save Invest Repeat 📈 @InvestRepeat]

Was talking to an IT company senior manager. He shared an interesting thing

> A Fortune 500 company gave them contract to implement AI in their entire supply chain for more efficiency.

> The IT company delivered.

> After few months of delivery, token usage costs went up so much that the Fortune 500 company was spending more on token cost than employees in that division.

> They again approached the IT company & gave them another contract to reduce token usage & remove AI from non-critical places.

Interesting.

[Sridhar Vembu @svembu]

We had nauseating, disgusting levels of corruption in Tamil Nadu under the DMK. This is known to the entire Universe, not some grand secret.

It reached such Himalayan heights, their own Finance Minister, someone not corrupt who was caught up with the corrupt crowd, was complaining about it (sadly for him his remarks became public and he was demoted to became the IT Minister).

This is not about ideology.
Even the Marxists of Kerala, then allied with the DMK, would say how deeply corrupt the DMK was.

I have always appreciated people like Shri Balagopal, the former Finance Minister of Kerala, for his devoted public service. I am sure he and I will not agree on political philosophy or ideology but I deeply respect him.

If the DMK truly wants to introspect, they must start with their corruption.

Instead, they spend their time attacking a messenger like me as a TVK stooge or a Brahmin or a Sanghi and so on.

May be they can study Kural 423: focus on the message, even if the message comes from a "Brahmin Sanghi TVK stooge" like me:

எப்பொருள் யார்யார்வாய்க் கேட்பினும் அப்பொருள்
மெய்ப்பொருள் காண்ப தறிவு.

[Notasami @SylviaMingus]

La FIFA pidió a Gillette que ocultara su logotipo en el Gillette Stadium porque no era patrocinador oficial del Mundial.

Mira lo que hizo la marca

[Arunkumar Mahendran @arunmahe]

@XpressBees_IN @AJIOLife

[Arunkumar Mahendran @arunmahe]

@XpressBees_IN Worst courier service.

Parcel reached the destination hub on June 11 but its not yet sent for delivery.

13670616147642

[Arunkumar Mahendran @arunmahe]

@XpressBees_IN @AJIOLife Can I have an update on shipment: 13670616167760 @XpressBees_IN @AJIOLife Delivery date is keep on changing. I heard form a delivery guy stating XpressBees is short of staff to complete the courier on time.

[Arunkumar Mahendran @arunmahe]

@XpressBees_IN @AJIOLife @XpressBees_IN Is there an update? When can i expect my order to be delivered

[Suraj Sharma @suraj_sharma14]

If I had 6 months to become an Agentic AI Engineer.

I'd do this.

Stage 1: Python + Async Foundations
asyncio, FastAPI, event-driven architecture, error handling, API integration patterns.

Stage 2: LLM Fundamentals for Agents
Context management, model routing, token economics, latency tradeoffs, failure modes.

Stage 3: Tool Calling + Structured Outputs
Pydantic validation, function calling schemas, error recovery, dynamic tool discovery.

Stage 4: Memory + State Management
Short-term buffers, long-term vector recall, context compression, cross-session sync.

Stage 5: Single Agent Workflows
ReAct loops, plan-and-execute, self-reflection, iteration limits, graceful degradation.

Stage 6: Multi-Agent Orchestration
LangGraph/CrewAI, supervisor patterns, message passing, conflict resolution, handoffs.

Stage 7: Human-in-the-Loop Systems
Uncertainty detection, approval gates, audit trails, resume logic, intervention points.

Stage 8: Evaluation + Quality Assurance
Automated eval harnesses, LLM-as-a-judge, regression testing, hallucination metrics.

Stage 9: Observability + Tracing
Distributed tracing (LangSmith/Arize), cost dashboards, latency monitoring, alerting.

Stage 10: Security + Guardrails
Prompt injection defense, output filtering, PII redaction, sandboxed execution, compliance.

Stage 11: Production Deployment
vLLM/SGLang, Kubernetes scaling, CI/CD for agents, canary releases, rollback strategies.

Stage 12: Open Source + Portfolio
Ship autonomous agents publicly, write architecture docs, record demos, contribute to libs.

Most people stay stuck watching tutorials.

Builders get hired.

(Bookmark it)

[Arunkumar Mahendran @arunmahe]

@Mahindra_Auto Hey, what’s the average waiting period for 7XO AX/AX3 waiting period in Chennai. Need honest reply.

[The White House @WhiteHouse]

“The Deal with Islamic Republic of Iran is now complete. Congratulations to all!” President Donald J. Trump 🇺🇸

[Anthropic @AnthropicAI]

The US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national Anthropic employees.

The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance.

Access to all other Claude models is not affected.

We apologize for this disruption to our customers. We believe this is a misunderstanding and are working to restore access as soon as possible.

Read our full statement: https://t.co/bwn0sximKZ

[Arunkumar Mahendran @arunmahe]

@XpressBees_IN Two Parcels lying in your chennai warehouse for the third day without being delivered. Your helpline is of no use. Please advise. @XpressBees_IN

[Shruti @heyshrutimishra]

Elon just created 4,400 millionaires in a single day.

400 of them are now worth over $100 million.

These aren't VCs. They're SpaceX employees, and the list includes welders, technicians, and cafeteria staff, because for two decades the company paid every level of the workforce in stock instead of higher salaries.

Juan Hernandez immigrated from Mexico and took a $28 an hour contractor welding job in 2015. He says he didn't even know what SpaceX was. The company gave him a $10,000 equity grant and let him buy more shares through payroll deductions. That stake is now worth $880,000.

Trevor Hise's parents wanted him to take a stable job at General Electric. He picked SpaceX instead, stayed 12 years, and accumulated over 100,000 shares. At the $135 listing price that's $13.5 million. He's 37 and semiretired. His words: "The magnitude of this has been ridiculous."

The most telling detail came before the listing. Over 100 employees quietly banded together and negotiated a group wealth management deal covering up to $5 billion, because none of them had ever needed a wealth manager before.

Software IPOs have minted millionaires for 30 years. This is the first one where the money went to the factory floor.

[Arunkumar Mahendran @arunmahe]

@smarket Cost of AI? Who will cover

[Savukku Shankar @SavukkuOfficial]

Second hand refurbished hard disks would maximum fetch Rs. 800 to 1500 (500 GB which normally govt offices use).

The Minister @CTR_Nirmalkumar want us to believe that, a contract employee, took a huge risk and stole 18 hard disks for Rs.27,000/- from a government organisation ?

And what is the guarantee that the recovered hard disks are the same hard disks which were stolen from TNEB HQ ?

The theft of hard disks was done only to sabotage the CBI investigation and nothing else.

Please hand over the HD theft case to CBI. This is part of their investigation. @CMOTamilnadu

[Arunkumar Mahendran @arunmahe]

@AJIOLife This is absolutely incorrect information from the courier partner. I want this item to be picked up asap.

[Arunkumar Mahendran @arunmahe]

@AJIOLife Hi Arun, we have cancelled your Return RT217828598 as we received a confirmation from our courier partner that you do not wish to return the products. If you changed your mind & want to exchange/ return the same, click on https://t.co/rGAVMF4ksb to proceed. Thank you!