GPT-5.5 vs Pony Alpha
Compare GPT-5.5 by OpenAI against Pony Alpha by OpenRouter, context windows of 1.1M vs 200K, tested across 47 shared challenges. Updated May 2026.
Which is better, GPT-5.5 or Pony Alpha?
GPT-5.5 and Pony Alpha are both competitive models. GPT-5.5 costs $5/M input tokens vs $0/M for Pony Alpha. Context windows: 1050K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-5.5 and Pony Alpha
GPT-5.5 is made by openai while Pony Alpha is from openrouter. GPT-5.5 has a 1050K token context window compared to Pony Alpha's 200K. On pricing, GPT-5.5 costs $5/M input tokens vs $0/M for Pony Alpha.
API pricing
Per 1M tokens
GPT-5.5
Input
$5.00
Output
$30.00
Pony Alpha
Input
$0.000
Output
$0.000
Our Verdict
GPT-5.5
Pony AlphaRunner-up
No community votes yet. On paper, GPT-5.5 has the edge — bigger model tier, newer, bigger context window, major provider backing.
Slight edge
Writing DNA
Style Comparison
Similarity
39%
Pony Alpha uses 6.8x more transitions
GPT-5.5
Pony Alpha
58%Vocabulary52%
18wSentence Length15w
0.74Hedging0.40
2.9Bold5.9
5.1Lists4.4
0.00Emoji0.00
1.68Headings0.71
0.03Transitions0.23
Based on 26 + 20 text responses
FAQ
