Grok 4.5 Tested: Bigger Context, Cheaper and Faster
socialwithaayan · x · 2026-07-18
The author didn't expect to be so impressed by Grok 4.5, but testing it changed their mind.
Key highlights include:
- A context window of 500K tokens, capable of ingesting entire project files at once while retaining details;
- Impressive speed, with responses much faster than expected;
- Costs roughly 60% cheaper per task compared to Claude Opus 4.8;
- Ranks 4th on the Artificial Analysis leaderboard;
- Reportedly trained alongside Cursor, making it better suited for multi-step tasks in real code repositories;
- Direct integration with X's real-time data.
The author concludes that it’s not just a "cheap alternative," but a smarter default choice for many non-throwaway tasks.
Related event: Grok 4.5 draws attention for low-cost, high-efficiency performance(10 posts)→
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