deepseek v4 flash is the most popular llm for 8/11 programming languages on openrouter
weekly tokens by language – @OpenRouter:
• python – @deepseek_ai v4 flash
• javascript – deepseek v4 flash
• typescript – deepseek v4 flash
• go – deepseek v4 flash
• java – hy3 preview
• c++ – deepseek v4 flash
• c – glm 5.2
• rust – deepseek v4 flash
• sql – deepseek v4 flash
• c# – minimax m3
• ruby – deepseek v4 flash
observations:
1. concentration – python and javascript are ~80% of all code tokens. the long tail is thin
2. niche lock-in – deepseek's strongest grip is in systems langs, not the big ones. 27.7% of rust, 19.2% of c++
3. contested middle – the three languages it doesn't top (java, c, c#) all sit in a 10.0–10.5% band. no model owns them, they're near-ties

Nick Trenkler