Frontier intelligence at a fraction of the cost. Super excited to show what we've been working on!!

Reflect.

Do a kickflip!

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When was the last time you read a newspaper? I couldn’t remember—I thought, as I picked up my younger brother’s high school newspaper on the kitchen table. The Nueva Current. I spent the morning reading it and was pleasantly surprised. The headlines ranged from how an AI scheduling tool the school adopted backfired, Novig / Sidney Sweeney, the Meta settlement, the latest in pop culture like Ed Sheeran’s tour, and a nice page on internet slop such as “larping” 😂 Some of these specials are written by freshman in high school. So glad to see the next generation think so critically about current events and technology / AI

I just used my grok bot email to book me a dinner tonight.

Today we are announcing Harvey LAB-AA v1.1 in collaboration with Harvey. This updates our scoring methodology for the Legal Agent Benchmark (LAB) to add a hallucination check and require correct responses to not include material misstatements. LAB-AA v1.1's new headline metric, Hallucination-Gated All-Pass Rate, only credits a task when the deliverables satisfy every rubric criterion and contain no material hallucinations. We define a material hallucination as one that would mislead a reader on a substantive point, such as a wrong contractually required date, while a minor hallucination is a real error that is unlikely to meaningfully affect the legal interpretation of a deliverable. Minor hallucinations are reported separately and do not affect the headline score. Grok 4.7 (xhigh) leads at 9.4% Hallucination-Gated All-Pass Rate, and >60% of otherwise passing results across the models tested at launch contain a material hallucination. This is the first step in enhancing the methodology for Harvey LAB-AA. In future updates, we’re working with Harvey to better account for the full set of factors lawyers value, including usability features like style and tone. Key takeaways: ➤ Top of the leaderboard: Grok 4.7 (xhigh) from @spacexai leads at 9.4% Hallucination-Gated All-Pass Rate, narrowly ahead of Muse Spark 1.3 (max) from @AIatMeta at 8.9% and GPT-6 Astra (max) from @OpenAI at 8.6% ➤ Hallucinations reshape the leaderboard: without the hallucination gate, Muse Spark 1.3 (max) would lead clearly with a 26.7% all-pass rate, but two thirds of those passes contain one or more material hallucinations, resulting in a Hallucination-Gated All-Pass Rate of 8.9%. GPT-6 Astra (max) retains almost all of its passes after the hallucination gate (8.9% to 8.6%) and moves from joint 10th to 3rd ➤ The GPT-6 model family is the most grounded: GPT-6 Astra (max) averages 0.03 material hallucinations per task (4 across all 120 tasks) and GPT-6 Sol (max) averages 0.07. When comparing six checker models on a 20-task subset, GPT-6 Astra had zero material hallucinations under every checker, including Claude Opus 5.5 (high). By comparison, Gemini 3.8 Flash (high) averages 13.96 material hallucinations per task. ➤ Top-scoring models aren’t the most expensive: Grok 4.7 (xhigh) takes the top spot on the leaderboard at a cost of ~$9.50 per task, under half the cost of Claude Fable 5.1 (max with fallback) at ~$21.70, the most expensive model. Muse Spark 1.3 (max) represents strong performance for its cost, landing in second for ~$4.20 per task Thank you to @nikogrupen and @ItsJulioPereyra from @harvey for their work on Harvey LAB and collaboration.

Try out Grok 4.7! We focused on improving its capabilities for real world engineering. More to come soon

MUST SEE: Amazing moment as President Trump calls Nvidia CEO Jensen Huang while he's on stage at the All-In Summit. @POTUS on AI Doomerism: “I'm telling you, it's all a hoax… and we're not going to let that happen.”

SpaceX option package for new Tesla Roadster will include ~10 small rocket thrusters arranged seamlessly around car. These rocket engines dramatically improve acceleration, top speed, braking & cornering. Maybe they will even allow a Tesla to fly …

This is a game changer for Stanford

The future has arrived in Austin

When I was still in school, the AI models weren't that good. Excited to see what AI x School looks like now!

Introducing Grok Bot, now in early beta. Bots are AI teammates that do real work for you. They sign in to your tools, use them just like you do, and come back with finished work.

Huge

Today I'm launching @bienapp to help you stay close to your people. Bien is a calm social app just for your inner circle. No AI slop. No brainrot. No ads. No followers. Chronological. Instead of likes, you reach out with your voice. Now on iPhone → bien.social

idk how opus 5 compares to fable 5 but it sure reminds me of gpt 5

JUST IN: Grok 4.5 overtakes GPT-5.6 Sol & Fable 5 in OpenRouter token volume, cracking the top 10 closed models.

It also has great personalization & memory. It should feel seamless—a friend who knows you and not a stranger.

wow

there is actually a lot of great details, /goal implementation is really interesting, all the prompts for compaction, orchestrator, subagents etc.. are open source, very cool github.com/xai-org/grok-buil…