DeepSeek V4 Pro vs GPT-6.1 Sol

In Nivana’s weekly evals DeepSeek V4 Pro (DeepSeek) beats GPT-6.1 Sol (OpenAI) on 2 of 8 task types and loses on 6. DeepSeek V4 Pro costs $0.66 in / $1.98 out per 1M tokens; GPT-6.1 Sol costs $2 in / $10 out per 1M tokens.

TaskDeepSeek V4 ProGPT-6.1 Sol
quick answers and everyday questions8184
writing8389
coding8588
reasoning and analysis8082
maths9277
structured data and JSON8786
long documents8286
translation8183

With Nivana you don’t choose between them: the router sends each request to whichever wins for it.