OpenAI Codex Mini vs Inception: Mercury 2
Compare OpenAI Codex Mini by OpenAI against Inception: Mercury 2 by Inception, context windows of 200K vs 128K, tested across 10 shared challenges. Updated April 2026.
Which is better, OpenAI Codex Mini or Inception: Mercury 2?
OpenAI Codex Mini and Inception: Mercury 2 are both competitive models. OpenAI Codex Mini costs $1.5/M input tokens vs $0.25/M for Inception: Mercury 2. Context windows: 200K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between OpenAI Codex Mini and Inception: Mercury 2
OpenAI Codex Mini is made by openai while Inception: Mercury 2 is from inception. OpenAI Codex Mini has a 200K token context window compared to Inception: Mercury 2's 128K. On pricing, OpenAI Codex Mini costs $1.5/M input tokens vs $0.25/M for Inception: Mercury 2.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Inception: Mercury 2 is 8.0x cheaper per token — worth considering if cost matters.
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
