"GPT-5.6-Sol-xHigh landed on the Pareto frontier for Code Arena: Frontend scoring 1636 at a blended $23.75/M ($5/$30 per million input/output tokens), 40% cheaper than Claude Fable 5, while approximately matching the performance on Code Arena: Frontend."
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. — Arena.ai
Source: https://x.com/arena/status/2075672492312768683
See the full Code Arena: Frontend leaderboards at https:// arena.ai/leaderboard/co de/webdev … — Arena.ai