OpenAI o3 vs PaLM 2 Chat
Compare OpenAI o3 by OpenAI against PaLM 2 Chat by Google AI, tested across 21 shared challenges. Updated May 2026.
Which is better, OpenAI o3 or PaLM 2 Chat?
OpenAI o3 and PaLM 2 Chat are both competitive models. OpenAI o3 costs $10/M input tokens vs $0.5/M for PaLM 2 Chat. Compare their real outputs side by side below.
Key Differences Between OpenAI o3 and PaLM 2 Chat
OpenAI o3 is made by openai while PaLM 2 Chat is from google. On pricing, OpenAI o3 costs $10/M input tokens vs $0.5/M for PaLM 2 Chat.
API pricing
Per 1M tokens
OpenAI o3
Input
$10.00
Output
$40.00
PaLM 2 Chat
Input
$0.50
20× cheaper
Output
$0.50
80× cheaper
PaLM 2 Chat is cheaper on both — 20× input, 80× output
Our Verdict
OpenAI o3
PaLM 2 ChatRunner-up
No community votes yet. On paper, OpenAI o3 has the edge — bigger model tier, newer.
PaLM 2 Chat is 80x cheaper per token — worth considering if cost matters.
Too close to call
Writing DNA
Style Comparison
Similarity
55%
OpenAI o3 uses 5.3x more headings
OpenAI o3
PaLM 2 Chat
68%Vocabulary63%
14wSentence Length16w
0.26Hedging0.77
0.7Bold3.4
3.0Lists1.3
0.00Emoji0.00
0.38Headings0.07
0.12Transitions0.27
Based on 16 + 9 text responses
FAQ
