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MiniMax M2.5 vs o3

A detailed comparison of MiniMax M2.5 (MiniMax) and o3 (OpenAI) across pricing, performance, and features.

Pricing Comparison

MetricMiniMax M2.5o3Difference
Input / 1M tokens$0.30$0.40+33%
Output / 1M tokens$1.20$1.60+33%
Context window200K200K
Max output128K100K

Benchmark Comparison

BenchmarkMiniMax M2.5o3
MMLU-Pro82%87%
HumanEval90%94.5%
GPQA79.2%

Capabilities

CapabilityMiniMax M2.5o3
code
reasoning
text
tool-use
vision

MiniMax M2.5 Strengths

  • Frontier quality at budget pricing ($0.30/$1.20)
  • 80.2% SWE-Bench Verified — among the best
  • Open-source (MIT) with 10B active params — easy to run

MiniMax M2.5 Weaknesses

  • Text-only — no vision or audio
  • No tool-use support
  • Newer provider — smaller ecosystem

o3 Strengths

  • Recently repriced — now very cheap
  • Excellent logical reasoning
  • 200K context window

o3 Weaknesses

  • Slower due to reasoning overhead
  • Overkill for simple tasks

Quick Verdict

Best value: MiniMax M2.5 is the more affordable option at $0.3/$1.2 per 1M tokens.

Higher benchmarks: o3 scores higher on average across available benchmarks (86.9% avg).

Choose MiniMax M2.5 if cost matters most. Choose o3 if you need the best possible quality for complex tasks.

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