GPT-4.1 vs GPT-4o (Omni)
Compare GPT-4.1 and GPT-4o (Omni), both from OpenAI, context windows of 1.0M vs 128K, tested across 54 shared challenges. Updated May 2026.
Which is better, GPT-4.1 or GPT-4o (Omni)?
GPT-4.1 and GPT-4o (Omni) are both competitive models. GPT-4.1 costs $2/M input tokens vs $2.5/M for GPT-4o (Omni). Context windows: 1048K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4.1 and GPT-4o (Omni)
GPT-4.1 is made by openai while GPT-4o (Omni) is from openai. GPT-4.1 has a 1048K token context window compared to GPT-4o (Omni)'s 128K. On pricing, GPT-4.1 costs $2/M input tokens vs $2.5/M for GPT-4o (Omni).
API pricing
Per 1M tokens
GPT-4.1
Input
$2.00
1.3× cheaper
Output
$8.00
1.3× cheaper
GPT-4o (Omni)
Input
$2.50
Output
$10.00
GPT-4.1 is cheaper on both — 1.3× input, 1.3× output
Our Verdict
GPT-4.1
GPT-4o (Omni)Runner-up
No community votes yet. On paper, GPT-4.1 has the edge — newer, bigger context window.
Too close to call
Writing DNA
Style Comparison
Similarity
52%
GPT-4.1 uses 9.4x more emoji
GPT-4.1
GPT-4o (Omni)
58%Vocabulary54%
19wSentence Length18w
0.38Hedging0.72
9.0Bold7.3
6.1Lists5.6
0.24Emoji0.03
1.01Headings1.40
0.07Transitions0.26
Based on 25 + 24 text responses
FAQ
