Author: Naveed Ahmad

Amazon Ring, going through a surge in customer-support calls throughout final 12 months’s vacation season, evaluated greater than 40 AI voice distributors earlier than selecting startup Vapi to deal with its inbound telephone site visitors. Right now, Ring routes 100% of its inbound calls by way of Vapi’s platform. That deployment helped Vapi elevate a $50 million Sequence B led by Peak XV Companions at a valuation of round $500 million after funding, in keeping with an individual conversant in the matter. Ring turned to Vapi in mid-This autumn final 12 months, when it was weighing whether or not to…

Amazon deliveries maintain getting sooner. On Tuesday, the web retailer introduced the launch of its 30-minute supply choice, dubbed “Amazon Now,” in dozens of U.S. cities. This ultra-fast supply choice will enable prospects to buy throughout “1000’s” of things, Amazon says, together with recent groceries, family necessities, and different regionally related gadgets. At launch, Amazon Now might be extensively out there in Atlanta, Dallas-Fort Price, Philadelphia, and Seattle, and is increasing to Austin, Denver, Houston, Minneapolis, Orlando, Oklahoma Metropolis, and Phoenix. By year-end, Amazon expects to carry the service to tens of thousands and thousands of consumers in these and…

Researchers at Tilde Analysis have launched Aurora, a brand new optimizer for coaching neural networks that addresses a structural flaw within the widely-used Muon optimizer. The flaw quietly kills off a major fraction of MLP neurons throughout coaching and retains them completely lifeless. Aurora comes with a 1.1B parameter pretraining experiment, a brand new state-of-the-art outcome on the modded-nanoGPT speedrun benchmark, and open codes. What’s Muon? To grasp Aurora, it helps to first perceive Muon. The Muon optimizer attracted consideration within the ML neighborhood after outperforming AdamW in wall-clock time to convergence on the nanoGPT speedrun competitors — a neighborhood…

factor_prices = load_factors_dataset() X_full, F_full = prices_to_returns(costs, factor_prices) X_tr, X_te, F_tr, F_te = train_test_split( X_full, F_full, test_size=0.33, shuffle=False ) fm = MeanRisk( objective_function=ObjectiveFunction.MAXIMIZE_RATIO, risk_measure=RiskMeasure.VARIANCE, prior_estimator=FactorModel(), ) fm.match(X_tr, F_tr) ptf_fm = fm.predict(X_te); ptf_fm.identify = “Issue Mannequin” print(f”nFactor-model Sharpe: {ptf_fm.annualized_sharpe_ratio:.3f}”) pipe = Pipeline([ (“preselect”, SelectKExtremes(k=8, highest=True)), (“optimize”, MeanRisk( objective_function=ObjectiveFunction.MAXIMIZE_RATIO, risk_measure=RiskMeasure.VARIANCE)), ]) pipe.match(X_train) ptf_pipe = pipe.predict(X_test); ptf_pipe.identify = “High-8 + Max Sharpe” wf_model = MeanRisk( objective_function=ObjectiveFunction.MAXIMIZE_RATIO, risk_measure=RiskMeasure.VARIANCE, ) mp_portfolio = cross_val_predict( wf_model, X, cv=WalkForward(train_size=252*2, test_size=63), n_jobs=-1, ) mp_portfolio.identify = “Stroll-Ahead Max Sharpe” print(f”nWalk-forward portfolio Sharpe={mp_portfolio.annualized_sharpe_ratio:.3f} ” f”CalmarRatio={mp_portfolio.calmar_ratio:.3f}”) mp_portfolio.plot_cumulative_returns().present() tuned = MeanRisk( objective_function=ObjectiveFunction.MAXIMIZE_RATIO, risk_measure=RiskMeasure.VARIANCE, prior_estimator=EmpiricalPrior(mu_estimator=EWMu(alpha=0.1)), ) grid = GridSearchCV( estimator=tuned, cv=WalkForward(train_size=252*2, test_size=63), n_jobs=-1, param_grid={…

Venmo is rolling out a big redesign over the approaching months that goals to make the app extra helpful, social, and simpler to navigate. That is the peer-to-peer funds app’s largest refresh since 2021. The timing is notable. PayPal, which owns Venmo, is restructuring to spin Venmo off as a stand-alone enterprise unit — a transfer extensively seen as laying the groundwork for a possible sale. Stripe has reportedly expressed curiosity in buying PayPal outright. In that context, a splashy redesign appears much less like a routine replace and extra like a window-dressing job forward of a transaction. The rollout…

OpenAI on simply launched Dawn, a cybersecurity initiative that mixes the corporate’s frontier AI fashions with Codex Safety, its coding-focused agentic system, and a broad community of safety companions. This system is aimed toward builders, enterprise safety groups, researchers, and government-linked defenders who want to search out, validate, and patch software program vulnerabilities earlier within the improvement cycle — not after exploits have already been recognized within the wild. The core premise of Dawn is a shift in how software program safety is approached: slightly than treating vulnerability remediation as a reactive course of. OpenAI needs it taken care of…

Considering Machines Lab, the AI startup based final yr by former OpenAI CTO Mira Murati, on Monday introduced one thing referred to as interaction models, which, at its essence, appears like AI that may interrupt you. Proper now, each AI mannequin you’ve ever used works the identical manner. You discuss, it listens. It responds, you pay attention. Considering Machines is making an attempt to vary that by constructing a mannequin that processes your enter and generates a response on the similar time, so it’s extra like a cellphone name than a textual content chain. The technical time period for that…

The apparently insatiable demand for AI compute has knowledge heart entrepreneurs trying to the celebs. There’s a key downside: There aren’t sufficient rockets to place knowledge facilities in orbit round Earth, and so they’re too costly. A lot of the gamers are hoping that SpaceX’s Starship — anticipated to make its twelfth check flight as quickly as this weekend — will resolve the issue. However as soon as the automobile is operational, it could be years earlier than it’s commercially obtainable, given SpaceX’s inside satellite tv for pc enterprise. The identical is true for Blue Origin’s New Glenn rocket, which…

In the end, Android and iPhone customers will have the ability to ship one another end-to-end encrypted textual content messages. On Monday, end-to-end encrypted messaging is beginning to roll out in beta for conversations between iPhone and Android customers working essentially the most up-to-date software program. Finish-to-end encrypted (e2ee) messaging is a crucial privateness function that makes customers far much less vulnerable to surveillance by hackers, governments, or the businesses that make these communication platforms. When these messages are despatched between gadgets, they’re encrypted whereas in transit, making it close to inconceivable for anybody else to intercept and browse the…

Simply two months after itemizing its first enterprise fund on the inventory market, Robinhood is getting ready to launch a second. The corporate has filed a confidential registration for RVII, an ordinary regulatory step that permits it to work by means of the approval course of earlier than making particulars public. Unlike its first fund, which at the moment holds stakes in 10 late-stage companies — Airwallex, Increase, Databricks, ElevenLabs, Mercor, OpenAI, Oura, Ramp, Revolut, and Stripe — RVII will solid a wider internet, investing in growth-stage and early-stage startups. It’s a significant distinction, on condition that early-stage startups are youthful and…