GPT-5.2 Chat vs Inception: Mercury
Compare GPT-5.2 Chat by OpenAI against Inception: Mercury by Inception, context windows of 128K vs 32K, tested across 53 shared challenges. Updated April 2026.
Which is better, GPT-5.2 Chat or Inception: Mercury?
GPT-5.2 Chat and Inception: Mercury are both competitive models. GPT-5.2 Chat costs $1.75/M input tokens vs $10/M for Inception: Mercury. Context windows: 128K vs 32K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-5.2 Chat and Inception: Mercury
GPT-5.2 Chat is made by openai while Inception: Mercury is from inception. GPT-5.2 Chat has a 128K token context window compared to Inception: Mercury's 32K. On pricing, GPT-5.2 Chat costs $1.75/M input tokens vs $10/M for Inception: Mercury.
No community votes yet. On paper, GPT-5.2 Chat has the edge — bigger model tier, newer, bigger context window, major provider backing.
Style Comparison
GPT-5.2 Chat uses 8.0x more transitions
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178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
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We read every word. 250 models. 2.14 million words. This is what we found.
