Arena.ai(@arena):Exciting news: @OpenAI’s GPT-5.6-sol is now joint #1 in the Code Arena: Frontend, matching Claude Fable 5! This marks the first time an OpenAI model has reached the top spot in Code Arena, demonstrating major gains in agentic coding, frontend and web app development. Highlights: - Significant improvement from GPT-5.5-xhigh (#18 -> #1) - #1 in Data & Analytics, Brand Marketing, Consumer product, and Gaming - Priced at $5/$30 per million input/output tokens - roughly 2× cheaper than Claude Fable 5 Huge congrats to the @OpenAI team for this incredible milestone!

2026.07.10 20:04

Exciting news: @OpenAI’s GPT-5.6-sol is now joint #1# in the Code Arena: Frontend, matching Claude Fable 5! This marks the first time an OpenAI model has reached the top spot in Code Arena, demonstrating major gains in agentic coding, frontend and web app development. Highlights: - Significant improvement from GPT-5.5-xhigh (#18# -> #1#) - #1# in Data & Analytics, Brand Marketing, Consumer product, and Gaming - Priced at $5/$30 per million input/output tokens - roughly 2× cheaper than Claude Fable 5 Huge congrats to the @OpenAI team for this incredible milestone!