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xAI

xAI is Elon Musk's AI company, the maker of the Grok models built into X (Twitter) and trained on the Colossus supercomputer. After merging with X, it combines a frontier lab with a social platform's distribution and data. All our xAI and Grok coverage lives on this page.

Official site ↗335 articles
In the glossary:Large Language Model (LLM)Reasoning Model
Fresh
arXiv cs.LGStudy: A Single Random Failure Makes AI Agents Abandon a Working Tool 11.6% of the TimeTechCrunchSpaceX Lands $40B for GPUs From Apollo and Predicts Extinction for NeocloudsWiredWired Tested 6 AI Agents in a Day: Dots Leads, Gemini Spark Fails at LunchInterconnects (Nathan Lambert)Meta releases Muse Spark Open: 816B parameters and the lead among US open-weight modelsCognition BlogCognition releases FrontierCode 2.0: the best score is just 45.5%TG: @ai_machinelearning_big_data (Machinelearning)Lead Claude Code developers leave Anthropic as the product tops $2.5 billion in revenueArtificial AnalysisClaude Opus 5.5 wins Code2Video-AA with 1536 Elo, beating GPT-6 Astra by 109vc.ruSpaceXAI Bundles Grok, Cursor and X Into a Single Subscription From $8 a Month
Comparisons
Grok vs ChatGPT
Study: A Single Random Failure Makes AI Agents Abandon a Working Tool 11.6% of the Time
LLM·arXiv cs.LG

Study: A Single Random Failure Makes AI Agents Abandon a Working Tool 11.6% of the Time

Oct 29, 2026·3 min
SpaceX Lands $40B for GPUs From Apollo and Predicts Extinction for Neoclouds
LLM

SpaceX Lands $40B for GPUs From Apollo and Predicts Extinction for Neoclouds

Oct 29, 2026·3 min
Wired Tested 6 AI Agents in a Day: Dots Leads, Gemini Spark Fails at Lunch
LLM

Wired Tested 6 AI Agents in a Day: Dots Leads, Gemini Spark Fails at Lunch

Oct 28, 2026·3 min
Meta releases Muse Spark Open: 816B parameters and the lead among US open-weight models
LLM

Meta releases Muse Spark Open: 816B parameters and the lead among US open-weight models

Oct 28, 2026·3 min
Cognition releases FrontierCode 2.0: the best score is just 45.5%
LLM·Cognition Blog

Cognition releases FrontierCode 2.0: the best score is just 45.5%

Cognition updated its coding-agent benchmark with larger tasks and stricter criteria. Claude Opus 5.5 scored 45.5%, while Kimi K3 managed only 17.7%, down from…

Oct 28, 2026·3 min
Lead Claude Code developers leave Anthropic as the product tops $2.5 billion in revenue
LLM·TG: @ai_machinelearning_big_data (Machinelearning)

Lead Claude Code developers leave Anthropic as the product tops $2.5 billion in revenue

Thariq Shihipar and Anthony Morris have left the Claude Code team, whose annual revenue topped $2.5 billion. Nvidia, meanwhile, priced its agent license at $2000…

Oct 27, 2026·3 min
Claude Opus 5.5 wins Code2Video-AA with 1536 Elo, beating GPT-6 Astra by 109
LLM·Artificial Analysis

Claude Opus 5.5 wins Code2Video-AA with 1536 Elo, beating GPT-6 Astra by 109

Artificial Analysis launched Code2Video-AA: 27 models design HTML videos from 114 briefs. Claude Opus 5.5 leads by 93 Elo, and the cost per task varies 300-fold.

Oct 26, 2026·3 min
SpaceXAI Bundles Grok, Cursor and X Into a Single Subscription From $8 a Month
LLM·vc.ru

SpaceXAI Bundles Grok, Cursor and X Into a Single Subscription From $8 a Month

SpaceXAI has launched one subscription for Grok, Cursor and X with four tiers at $8, $30, $100 and $200 a month. The higher tiers raise AI usage limits.

Oct 26, 2026·3 min
Top themes
01October 2026 Video Model Rankings: Luma Ray 3.14 Wins on a Single Prompt for 5 TokensOct 25, 2026·3 min02Devin now supports ChatGPT sign-in: Fusion with Astra is 39% cheaperOct 25, 2026·3 min03Gemini 4 Argon arrives in Devin: 60.5% on FrontierCode at 75% offOct 25, 2026·2 min04Artificial Analysis launches AA-PersonalityBench: 36 models, 30 traits, 900 questionsOct 25, 2026·3 min05SpaceXAI Backs Omarchy With $1.5 Million in Grok TokensOct 25, 2026·2 min
a16z measures AI spending for the first time: only 4.5% of Americans pay, top 1% spends $900
LLM·The Decoder

a16z measures AI spending for the first time: only 4.5% of Americans pay, top 1% spends $900

Oct 25, 2026·2 min
GPT-6 Sol Daybreak Blue Tops Cyber Index: +32 Points and $1.77 per Task
LLM·Artificial Analysis

GPT-6 Sol Daybreak Blue Tops Cyber Index: +32 Points and $1.77 per Task

Oct 24, 2026·2 min
Harvey LAB-AA v1.1: Grok 4.7 Leads With 9.4% After Hallucination Check
LLM·Artificial Analysis

Harvey LAB-AA v1.1: Grok 4.7 Leads With 9.4% After Hallucination Check

Oct 24, 2026·3 min
Nvidia in talks to buy Reflection AI, a startup valued at $8 billion
LLM·Hacker News AI

Nvidia in talks to buy Reflection AI, a startup valued at $8 billion

Oct 24, 2026·2 min
GPT-6.1 Sol in Devin Scores 60.4% on FrontierCode at $0.31 per Task
LLM·Windsurf Blog

GPT-6.1 Sol in Devin Scores 60.4% on FrontierCode at $0.31 per Task

OpenAI released GPT-6.1 Sol, and Devin already supports it: 60.4% on FrontierCode 1.1 at $0.31 per task, 81% cheaper than GPT-6 Sol at maximum effort.

Oct 24, 2026·2 min
Interface: a $99 smart ring that summons AI agents with a single tap
LLM·TechCrunch

Interface: a $99 smart ring that summons AI agents with a single tap

Interface is a $99 smart ring from Natura that turns a finger tap into a command for an AI agent. It works with Claude, ChatGPT, Grok Bot, Meta's Muse, and…

Oct 24, 2026·2 min
SpaceXSI Combined X Premium, Grok, and Cursor into One Subscription for $8–200
LLM·TechCrunch

SpaceXSI Combined X Premium, Grok, and Cursor into One Subscription for $8–200

SpaceX Super Intelligence launched The X Subscription, combining X Premium, Grok, and Cursor in five tiers from $8 to $200/month. The comprehensive offering competes with OpenAI and Anthropic in the p

Oct 24, 2026·2 min
Meta's Muse Agent Hits 5M US Downloads in 22 Days, Faster Than ChatGPT
LLM·Jiqizhixin (机器之心)

Meta's Muse Agent Hits 5M US Downloads in 22 Days, Faster Than ChatGPT

Oct 23, 2026·2 min
The State of AI in 2026: Key Takeaways from Stanford's Report
Robotics·IEEE Spectrum AI

The State of AI in 2026: Key Takeaways from Stanford's Report

Oct 18, 2026·3 min
Moonshot releases open Kimi K2 Thinking: 300 tool calls in a row
LLM·Moonshot Kimi Blog

Moonshot releases open Kimi K2 Thinking: 300 tool calls in a row

Oct 17, 2026·2 min
Groq raises $650 million, targets 200 MW of inference capacity by 2027
LLM·Groq Blog

Groq raises $650 million, targets 200 MW of inference capacity by 2027

Oct 17, 2026·3 min
Microsoft unveils new Maia chips, and Musk wants to test up to 10 designs a year
Business·Bloomberg Tech

Microsoft unveils new Maia chips, and Musk wants to test up to 10 designs a year

Oct 12, 2026·2 min
AI Solved 370 Math Problems, Mathematicians Panic, Musk Seeks $40 Billion: This Week's Highlights
LLM

AI Solved 370 Math Problems, Mathematicians Panic, Musk Seeks $40 Billion: This Week's Highlights

Oct 12, 2026·4 min
Researchers Compare CNN, ViT and Mamba Attention Against Human Gaze
LLM

Researchers Compare CNN, ViT and Mamba Attention Against Human Gaze

Oct 12, 2026·3 min
arXiv paper finds five flaws in XAI faithfulness metrics
LLM

arXiv paper finds five flaws in XAI faithfulness metrics

Oct 12, 2026·2 min
Conversational Model Benchmark: GPT Realtime and Gemini Respond at Almost Every Pause
LLM·arXiv cs.CL

Conversational Model Benchmark: GPT Realtime and Gemini Respond at Almost Every Pause

Researchers tested whether voice models can stay silent: on 427 pauses, APIs from OpenAI, Google and xAI almost always respond. Only Moshi and PersonaPlex hold back.

Oct 12, 2026·2 min
Agentic search on open-source models: who it found, what it cost, and where it all broke
LLM·Habr AI

Agentic search on open-source models: who it found, what it cost, and where it all broke

A Habr author spent $20 on an experimental agentic search system: he tested six open-source models, found that gemma4 with a simple JEV filter works best, and…

Oct 11, 2026·3 min