GPT-4.5 vs PaLM 2 Chat
Compare GPT-4.5 by OpenAI against PaLM 2 Chat by Google AI, context windows of 128K vs 8K, tested across 15 shared challenges. Updated May 2026.
Which is better, GPT-4.5 or PaLM 2 Chat?
GPT-4.5 and PaLM 2 Chat are both competitive models. GPT-4.5 costs $75/M input tokens vs $0.5/M for PaLM 2 Chat. Context windows: 128K vs 8K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4.5 and PaLM 2 Chat
GPT-4.5 is made by openai while PaLM 2 Chat is from google. GPT-4.5 has a 128K token context window compared to PaLM 2 Chat's 8K. On pricing, GPT-4.5 costs $75/M input tokens vs $0.5/M for PaLM 2 Chat.
Per 1M tokens
PaLM 2 Chat is cheaper on both — 150× input, 300× output
No community votes yet. On paper, GPT-4.5 has the edge — bigger model tier, newer, bigger context window.
PaLM 2 Chat is 300x cheaper per token — worth considering if cost matters.
Style Comparison
GPT-4.5 uses 18.1x more headings
