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GPT-5 vs GPT-4o

A detailed comparison of GPT-5 (OpenAI) and GPT-4o (OpenAI) across pricing, performance, and features.

Pricing Comparison

MetricGPT-5GPT-4oDifference
Input / 1M tokens$1.25$2.50+100%
Output / 1M tokens$10.00$10.00
Context window128K128K
Max output16.384K16.384K

Benchmark Comparison

BenchmarkGPT-5GPT-4o
MMLU-Pro88.5%80.5%
HumanEval95%91%
GPQA73.5%64.2%

Capabilities

CapabilityGPT-5GPT-4o
audio
code
reasoning
text
tool-use
vision

GPT-5 Strengths

  • Strong all-around performance
  • Good price for flagship tier
  • Multimodal including audio

GPT-5 Weaknesses

  • 128K context vs 200K+ for newer models
  • Codex variants better for pure coding

GPT-4o Strengths

  • Well-established and reliable
  • Large ecosystem of tools and integrations

GPT-4o Weaknesses

  • Being superseded by GPT-5 series
  • Higher price than newer, better alternatives

Quick Verdict

Best value: GPT-5 is the more affordable option at $1.25/$10 per 1M tokens.

Higher benchmarks: GPT-5 scores higher on average across available benchmarks (85.7% avg).

Choose GPT-5 if cost matters most. Choose GPT-4o if you need the best possible quality for complex tasks.

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