GPT-5.1 Codex Max vs Polaris Alpha
Compare GPT-5.1 Codex Max by OpenAI against Polaris Alpha by OpenRouter, tested across 35 shared challenges. Updated April 2026.
Which is better, GPT-5.1 Codex Max or Polaris Alpha?
GPT-5.1 Codex Max and Polaris Alpha are both competitive models. Compare their real outputs side by side below.
Key Differences Between GPT-5.1 Codex Max and Polaris Alpha
GPT-5.1 Codex Max is made by openai while Polaris Alpha is from openrouter.
No community votes yet. On paper, GPT-5.1 Codex Max has the edge — bigger model tier, major provider backing.
Style Comparison
GPT-5.1 Codex Max uses 225.1x more bold
vs
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
