GPT-4.5 Preview scored 45% on aider's polyglot coding benchmark [0]. OpenAI describes it as "good at creative tasks" [1], so perhaps it is not primarily intended for coding.

  65% Sonnet 3.7, 32k think tokens (SOTA)
  60% Sonnet 3.7, no thinking
  48% DeepSeek V3
  45% GPT 4.5 Preview <===
  27% ChatGPT-4o
  23% GPT-4o

[0] https://aider.chat/docs/leaderboards/

[1] https://platform.openai.com/docs/models#gpt-4-5