SpaceXAI plans to launch 1.5-trillion-parameter Grok 4.5 model trained on Cursor coding data · Digg

/TECHStory update pending

SpaceXAI plans to launch 1.5-trillion-parameter Grok 4.5 model trained on Cursor coding data

The pre-training concluded in May 2026 before supplemental reinforcement learning.

Story Brief

The pre-training concluded in May 2026 before supplemental reinforcement learning.

Commentary on X

Highest ranked

TyTyManiaTECH

@ns123abc LET’S GOOOOO 🚀 Grok 4.5 already pulling up on Opus and GPT-5.5? xAI really said “we’re not here to play” 😂

Mr Strijker@mrstrijkerTECH

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xueyuan Pang@jordyuoutTECH

@scaling01 你个大骗子，大傻逼，谁告诉你1.5t模型明天来的？

Rohan Paul@rohanpaul_ai

Sentiment

Positive51.1%48.9%Negative

Positive Read

Positive users are excited about Grok 4.5's 1.5T scale and early access potential while negative users criticize the SpaceXAI name and predict disappointment.

Based on 87 visible X reactions from 262 accounts.

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@AndrewCurran_ No way really?? This excites me even more than 5.6 atp!

Jonny Quest Simulator@BigJonnyQuestTECH

@ns123abc Grok is the worst AI of the bunch by massive margin

王凯

王凯文🐾🐕️@JAKEVIN16TECH

@scaling01 I'm so excited! I can use it early on!

TECH

Grok 4.5 almost ready to drop? Some details about Grok 4.5 that have now been confirmed by various reports. - Grok 4.5 is built on xAI’s V9 foundation model with 1.5T parameters. - That makes it about 3x larger than v8-small, which currently serves production traffic on X. - V9 pre-training was completed on May 26, 2026. - Cursor coding data was added after pre-training through supplemental training. - Reinforcement learning is still ongoing. - xAI is planning monthly new-model releases trained from scratch through the end of 2026. - Grok 4.3 remains the current public API model on Amazon Bedrock.

Lisan al Gaib@scaling01TECH

The 1.5T model is coming tomorrow I have high expectations with all that cursor data and it's much bigger than all the Grok 4.X versions It should be at least on par with GLM-5.2 https://x.com/scaling01/status/2074612891429294574/photo/1

NIK@ns123abcTECH

🚨BREAKING: SPACEXAI AND CURSOR DROPPING GROK 4.5 TOMORROW According to memo sent to staff: >Built to be competitive directly with Opus 4.8 and GPT 5.5 https://x.com/ns123abc/status/2074604203180208524/photo/1

Andrew Curran@AndrewCurran_TECH

SpaceXAI will release the new model trained in conjunction with Cursor tomorrow, I'm assuming this means the 1.5-trillion-parameter Grok 4.5, per reporting by The Information. It's going to be a busy week.

Andrew Curran@AndrewCurran_TECH

These guys don't follow a set schedule and don't time things with the media in mind, so it's perfectly possible they release it tonight at 10pm or in the middle of the night.

Rohan Paul@rohanpaul_aiTECH

Elon Musk's statement from last week on Grok 4.5 https://x.com/rohanpaul_ai/status/2074267176970891526/photo/1

🎭

🎭@deepfatesTECH

Groxor https://twitter.com/andrewcurran_/status/2074611115343172069