Manav Aggarwal

20 | mts @xAI | prev @ucberkeley eecs

[Manav Aggarwal @manav_a4]

@babugi28 big moves!! congrats bro

[Manav Aggarwal @manav_a4]

@andonlabs very interesting

[Manav Aggarwal @manav_a4]

@agno_three @grok behavior👀

[Manav Aggarwal @manav_a4]

@gopuff @samionxai ⭐️⭐️⭐️

[Manav Aggarwal @manav_a4]

@babugi28 Ayy

[Manav Aggarwal @manav_a4]

@mycharmspace Best of luck Tianyi!!

[Manav Aggarwal @manav_a4]

@xai Huge

[Manav Aggarwal @manav_a4]

@saurishs @xai @santiagomed @aypan_17 I'm gonna miss u man

[Manav Aggarwal @manav_a4]

@ryenduu @xai Good luck on 61B!!

[Manav Aggarwal @manav_a4]

👀👀👀

[Artificial Analysis @ArtificialAnlys]

xAI has launched Grok 4.3, achieving 53 on the Artificial Analysis Intelligence Index with improved agentic performance, ~40% lower input price, and ~60% lower output price than Grok 4.20

The release of Grok 4.3 places @xAI just above Muse Spark and Claude Sonnet 4.6 on the Intelligence Index, and a 4 points ahead of the latest version of Grok 4.20. Grok 4.3 improves its Artificial Analysis Intelligence Index score while reducing cost to run the benchmark suite.

Key Takeaways:

➤ Grok 4.3 improves on cost-per-intelligence relative to Grok 4.20 0309 v2: it scores higher on the Intelligence Index while costing less to run the full benchmark suite. Grok 4.3 costs $395 to run the Artificial Analysis Intelligence Index, around 20% lower than Grok 4.20 0309 v2, despite using more output tokens. This makes it one of the lower-cost models at its intelligence level

➤ Large increase in real world agentic task performance: The largest single benchmark improvement is on GDPval-AA, where Grok 4.3 scores an ELO of 1500, up 321 points from Grok 4.20 0309 v2’s score of 1179 Grok 4.3, surpassing Gemini 3.1 Pro Preview, Muse Spark, Gpt-5.4 mini (xhigh), and Kimi K2.5. Grok 4.3 narrows the gap to the leading model on GDPval-AA, but still trails GPT-5.5 (xhigh) by 276 Elo points, with an expected win rate of ~17% against GPT-5.5 (xhigh) under the standard Elo formula

➤ Grok 4.3’s performs strongly on instruction following and agentic customer support tasks. It gains 5 points on 𝜏²-Bench Telecom to reach 98%, in line with GLM-5.1. Grok 4.3 maintains an 81% IFBench score from Grok 4.20 0309 v2

➤ Gains 8 points on AA-Omniscience Accuracy, but at the cost of lower AA-Omniscience Non-Hallucination Rate of 8 points, so Grok 4.20 0309 v2 still leads AA-Omniscience Non-Hallucination Rate, followed by MiMo-V2.5-Pro, in line with Grok 4.3

Congratulations to @xAI and @elonmusk on the impressive release!

[SpaceX @SpaceX]

SpaceXAI and @cursor_ai are now working closely together to create the world’s best coding and knowledge work AI.

The combination of Cursor’s leading product and distribution to expert software engineers with SpaceX’s million H100 equivalent Colossus training supercomputer will allow us to build the world’s most useful models.

Cursor has also given SpaceX the right to acquire Cursor later this year for $60 billion or pay $10 billion for our work together.

[Manav Aggarwal @manav_a4]

@aegeantic @grok This is taste @ryenduu

[Manav Aggarwal @manav_a4]

@yuvrajlakh @chipotle this is why sweetgreen clears you guys

[Manav Aggarwal @manav_a4]

@RyanNeverWrong 🫡

[Manav Aggarwal @manav_a4]

@Kimi_Moonshot This makes sense nice

[Elon Musk @elonmusk]

Macrohard or Digital Optimus is a joint xAI-Tesla project, coming as part of Tesla’s investment agreement with xAI.

Grok is the master conductor/navigator with deep understanding of the world to direct digital Optimus, which is processing and actioning the past 5 secs of real-time computer screen video and keyboard/mouse actions. Grok is like a much more advanced and sophisticated version of turn-by-turn navigation software.

You can think of it as Digital Optimus AI being System 1 (instinctive part of the mind) and Grok being System 2. (thinking part of the mind).

This will run very competitively on the super low cost Tesla AI4 ($650) paired with relatively frugal use of the much more expensive xAI Nvidia hardware. And it will be the only real-time smart AI system. This is a big deal.

In principle, it is capable of emulating the function of entire companies. That is why the program is called MACROHARD, a funny reference to Microsoft.

No other company can yet do this.

[Manav Aggarwal @manav_a4]

@DenisLabelle @grok try again

[Manav Aggarwal @manav_a4]

@grok are connectors in https://t.co/fHyKfDtF54 live???!!!

[Manav Aggarwal @manav_a4]

@grok thank u sir

[Manav Aggarwal @manav_a4]

@aakashgupta wow