Main announcement · Blog Now that Grok 4.5 is available, we’d love to hear how it’s working for you. Some things we’re especially curious about: What are you using it for beyond coding? This is the first model we’ve built for more than software engineering. If you’ve pointed it at data science…

[image] Casper Hsieh: Team - tried many times but the AskQuestion tool seems to fail with Grok 4.5. [image] Grok 4.5 cannot use AskQuestion tool; falls back to inline questions (Composer 2.5 works) Bug Reports Hi @Chris_Bellairs ! Thanks for flagging thi…

My workflow this morning: Grok 4.5 for planning → Composer 2.5 for implementing plan → Grok 4.5 to smooth out problems (failing tests, UI tweaks / “creative” changes). Everything seems to be great so far and it has barely touched my usage, to the point that I’ve double-checked on the website that …

Sorry for two posts in a row, but after working more deeply with Grok 4.5 last night and today, I’m sold. The performance is amazing for the cost. It seems to have access to more interesting tools (maybe I’m wrong about this?): it recently (correctly) traversed an open api using cURL and wrote ap…

This is a fantastic model—I’ve already built some really cool things with it in Rust and Python. The only thing I’m still wondering is: SpaceX AI is the new owner of Cursor, right? When you use SpaceX AI’s official API, the context window goes up to 512k tokens, but here in Cursor it’s only 256k tok…

any reason the grok models wouldnt be showing at all in my dropdown or model list? I’ve updated. to the latest.

[image] Asher Hunt: any reason the grok models wouldnt be showing at all in my dropdown or model list? I’ve updated. to the latest. Are you in the EU? [image] Grok 4.5 is now available! Grok 4.5 will become available in the EU in the coming weeks.

California based but traveling in the area for the week.

@asherhunt that answers it, Grok 4.5 is in the process of being accepted in the EU!

My subjective experience is that Grok 4.5 is inferior to Composer 2.5. I find Composer 2.5’s answers to be more logical, concise and humble. Furthermore, Composer 2.5 successfully resolved some code problems that Grok 4.5 failed to fix.

Really like it. Giving it some complex understanding via voice and its making sense and helping create a plan that it implements. I know its cheap compared to others but I hit the ceiling on my ultimate plan each month. I’ll continue to use Composer 2.5 standard purely for financial reasons, throwin…

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Colin (Colin) July 13, 2026, 4:33pm 114

Are you in the EU?

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