Arena.ai(@arena):Grok-4.5 from @SpaceXAI debuts at #13 on the new Agent Arena leaderboard, based on 9.8K live agentic sessions. Compared to Grok 4.3, this release is a significant step forward in agentic performance (#29->#13). It makes major gains on Bash Recovery, catching up to Anthropic and OpenAI models, and shows a substantial increase in confirmed task success, making it far more effective in real-world use. Check out rankings by signal below. Congrats to the SpaceXAI team on the strong Grok-4.5 release!

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Arena.ai@arena

2026.07.13 18:00

Grok-4.5 from @SpaceXAI debuts at #13# on the new Agent Arena leaderboard, based on 9.8K live agentic sessions. Compared to Grok 4.3, this release is a significant step forward in agentic performance (#29-#>#13#). It makes major gains on Bash Recovery, catching up to Anthropic and OpenAI models, and shows a substantial increase in confirmed task success, making it far more effective in real-world use. Check out rankings by signal below. Congrats to the SpaceXAI team on the strong Grok-4.5 release!