Arena.ai(@arena ):According to @tryramp, @AnthropicAI just overtook OpenAI in business customers (34.4% vs 32.3% this week). In the Text Arena, that flip happened in Q4 2025. Real-world signal led enterprise adoption by ~6 months. But the picture shifts fast: Codex crossed 3M+ weekly developers in April, up 5x since January (per @OpenAI). Coding agents are their own contest. More from Arena shortly.

Arena.ai

@arena

Where AI meets the real world. Formerly LMArena. We measure and advance the frontier of AI through community-driven evaluation. We’re hiring →

Joined March 2023

212 Following 158.2K Followers

Arena.ai@arena

2026.05.14 18:39

According to @tryramp, @AnthropicAI just overtook OpenAI in business customers (34.4% vs 32.3% this week). In the Text Arena, that flip happened in Q4 2025. Real-world signal led enterprise adoption by ~6 months. But the picture shifts fast: Codex crossed 3M+ weekly developers in April, up 5x since January (per @OpenAI). Coding agents are their own contest. More from Arena shortly.