Frank Hu @hexiang

@SpaceXAI: making @grok understand & imagine the universe | Prev @GoogleDeepMind: gemini & imagen hexiang-hu.github.io Earth Joined September 2014

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Frank Hu @hexiang

5 hours ago

@LichangChen2 seems not on cursor yet

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Grok 4.5 is now available as an orchestrator model in Computer for Consumer Pro and Max subscribers. We evaluated it against five other orchestrator configurations on WANDR. It scored higher than every other configuration at roughly half the cost of Opus 4.8.

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Frank Hu @hexiang

23 hours ago

@archanfel_anoth Thank you JT, Grok 4.5 wouldn’t be possible without your hard work🫡🫡 It is a Long March

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Chong-U @chongdashu

2 days ago

I used Grok-ONLY AI tools to build an 2.5D Animal Crossing game → Cursor Grok 4.5 for code → Grok Imagine Images for sprites → Grok Video 1.5 for animations Grok 4.5 is FAST - really important for gamedev where the iteration loop is important. Footage + full article below

Chong-U @chongdashu

2 days ago

x.com/i/article/2075…

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Arena.ai @arena

a day ago

Big news: Grok-4.5 has landed #3 in the Code Arena: Frontend. - On par with GLM-5.2 (Max) and Claude Opus 4.8 (Thinking) - Significant improvement over Grok-4.3 (#62 -> #3) - #2 for Content Creation Tools, Simulations, Gaming and Reference-Based Design - #3 for Consumer Product Congrats to @SpaceXAI, now in the #3 spot in Code Arena: Frontend!

SpaceXAI @SpaceXAI

3 days ago

Announcing Grok 4.5, our first model trained specifically for coding and agents. It was trained with Cursor and offers frontier intelligence at leading speeds and cost efficiency. x.ai/news/grok-4-5

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Frank Hu @hexiang

2 days ago

Great visual illustration, glad that imagine is doing the job🚀

AYi @AYi_AInotes

2 days ago

说个暴论，今天之后前沿大模型的战争已经彻底换赛道了，顶级工程能力的边际成本，今天被彻底打穿了！🤯 Grok 4.5 今天正式发布，直接掀翻了前沿大模型的定价桌子。对标 Claude Opus 级别的编码与智能体能力，输入定价仅为后者五分之二，输出定价仅为其四分之一，叠加 4.2 倍的单任务 token

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Frank Hu @hexiang

2 days ago

Huge, now I won’t go bankrupt just because I received too many emails🤣

Elon Musk @elonmusk

2 days ago

Grok 4.5 on OpenClaw

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Frank Hu @hexiang

2 days ago

grok 4.5 comes back

Artificial Analysis @ArtificialAnlys

2 days ago

SpaceXAI’s Grok 4.5 scores 54 to place fourth on the Artificial Analysis Intelligence Index following only Fable 5, GPT-5.5, and Opus 4.8. It scores on par with GPT-5.5 in Codex on the Artificial Analysis Coding Agent Index in the Grok Build harness, at much lower cost Grok 4.5

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Benji Taylor @benjitaylor

2 days ago

Sun is shining. Grok 4.5 is out. Good day.

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Danny Limanseta @DannyLimanseta

2 days ago

I got to try Grok 4.5 in early access in Cursor for the past few days and I absolutely enjoyed it. It feels like Opus 4.8 at 2x the speed at a much cheaper price point. I tasked it to brainstorm > plan > implement a big feature for my game (this act 1 boss fight) and it did not disappoint. - It is much smarter than Composer 2.5, during planning mode, it is able to think through my request more robustly, ensuring that edge cases are covered and makes sure to ask the right questions to confirm with me first. - It is much better at brainstorming ideas/suggestions, similar to Opus 4.8, though I think Fable still edges out a little when it comes to brainstorming ideas and suggestions - It is FAST. probably the fastest of all frontier models (Opus 4.8, GPT 5.5 etc), which makes it a joy to build with, because I can stay in the flow - It has much improved visual/animation capabilities than Composer 2.5, it can code up animations (i wanted an explosion animation with particle effects) with much, much better visuals, animation movement and timing. This is a big leap and I was so happy to see this improvement. - The best part for me is that I can just use the same model from planning down to execution without switching to a lower cost model because the price point is cheaper than other frontier models. I'll be testing this model with more challenging tasks in the next few days but I think this is going to be my main driver for vibe coding for a while. Also, its nice to see Grok back in the race. 🙌

SpaceXAI @SpaceXAI

3 days ago

Announcing Grok 4.5, our first model trained specifically for coding and agents. It was trained with Cursor and offers frontier intelligence at leading speeds and cost efficiency. x.ai/news/grok-4-5

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Frank Hu @hexiang

2 days ago

A big leap on intelligence with better token efficiency

Artificial Analysis @ArtificialAnlys

2 days ago

SpaceXAI just released Grok 4.5, and it ranks #4 on GDPval-AA v2 with an Elo of 1543 - behind only the latest Claude releases from Anthropic on real-world agentic knowledge work tasks Grok 4.5 achieved this score at a cost of $0.49 per GDPval task to sit clearly on the Pareto

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Design Arena @Designarena

3 days ago

BREAKING: Grok 4.5 by @SpaceXAI is 5th on Website Arena with an Elo of 1328. This is a 25 rank jump over @SpaceXAI’s previous highest performing model. Trained with Cursor data, Grok 4.5 is in the same performance band as Claude Opus 4.6 (Thinking) by @AnthropicAI, achieving Opus-level coding performance on real world website tasks. Congratulations to the @SpaceXAI team on the launch!

SpaceXAI @SpaceXAI

3 days ago

Announcing Grok 4.5, our first model trained specifically for coding and agents. It was trained with Cursor and offers frontier intelligence at leading speeds and cost efficiency. x.ai/news/grok-4-5

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Frank Hu @hexiang

2 days ago

@zdhnarsil nb🐮

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Frank Hu @hexiang

2 days ago

@milichab 🚀

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Frank Hu @hexiang

3 days ago

now💫

SpaceXAI @SpaceXAI

3 days ago

Announcing Grok 4.5, our first model trained specifically for coding and agents. It was trained with Cursor and offers frontier intelligence at leading speeds and cost efficiency. x.ai/news/grok-4-5

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Frank Hu @hexiang

3 days ago

🚀in a few hours

Elon Musk @elonmusk

3 days ago

Based on strong positive feedback from customers in our beta test program, @SpaceXAI will make Grok 4.5 available to the public tomorrow. It is an Opus-class model, but faster, more token-efficient and lower cost.