OpenAI Codex Mini vs MiniMax M3
Compare OpenAI Codex Mini by OpenAI against MiniMax M3 by MiniMax, context windows of 200K vs 1.0M, tested across 10 shared challenges. Updated June 2026.
Which is better, OpenAI Codex Mini or MiniMax M3?
OpenAI Codex Mini and MiniMax M3 are both competitive models. OpenAI Codex Mini costs $1.5/M input tokens vs $0.3/M for MiniMax M3. Context windows: 200K vs 1049K tokens. Compare their real outputs side by side below.
Key Differences Between OpenAI Codex Mini and MiniMax M3
OpenAI Codex Mini is made by openai while MiniMax M3 is from minimax. OpenAI Codex Mini has a 200K token context window compared to MiniMax M3's 1049K. On pricing, OpenAI Codex Mini costs $1.5/M input tokens vs $0.3/M for MiniMax M3.
Per 1M tokens
MiniMax M3 is cheaper on both — 5.0× input, 5.0× output
No community votes yet. On paper, MiniMax M3 has the edge — bigger model tier, newer, bigger context window.
MiniMax M3 is 5.0x cheaper per token — worth considering if cost matters.
