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OpenAIGPT-5.4VSOpenAIGPT-5.4 nano

Analysis by:the whichllmmodel Editorial Team|Updated: June 2026

Our Take

We recommend GPT-5.4 if you need peak intelligence for reasoning and coding tasks, or the 12.2x cheaper GPT-5.4 nano to optimize your budget for high-volume pipelines. While GPT-5.4 holds a clear performance lead, it carries a heavy price premium. Choose GPT-5.4 for complex logic, or GPT-5.4 nano for budget efficiency.
WHY?
Benchmark Calculations & Evidence:
  • Coding Benchmarks: Both models were evaluated on the SWE-bench Pro benchmark. GPT-5.4 scored 57.7%, while GPT-5.4 nano scored 52.4%.
  • Reasoning Benchmarks: Both models were evaluated on the GPQA Diamond benchmark. GPT-5.4 scored 92.8%, while GPT-5.4 nano scored 82.8%.
  • Cost Efficiency: GPT-5.4 nano pricing ($0.2/M input, $1.25/M output) is 12.2x cheaper than GPT-5.4 ($2.5/M input, $15/M output).
  • Was this recommendation helpful?
    Model Specs

    GPT-5.4

    Benchmarks & Scores

    Coding (swe-bench-pro)Winner (+5.3%)
    57.7%

    complex codebases, multi-file repositories, and architectural planning

    Reasoning (gpqa-diamond)Winner (+10.0%)
    92.8%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)
    $5.63Input: $2.50 | Output: $15.00
    Context WindowLarger
    1.05M tokens
    Model Specs

    GPT-5.4 nano

    Benchmarks & Scores

    Coding (swe-bench-pro)
    52.4%

    complex codebases, multi-file repositories, and architectural planning

    Reasoning (gpqa-diamond)
    82.8%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)12.2x cheaper
    $0.46Input: $0.20 | Output: $1.25
    Context Window
    400k tokens

    Frequently Asked Questions about GPT-5.4 vs GPT-5.4 nano

    GPT-5.4 nano is cheaper than GPT-5.4. GPT-5.4 nano has a blended cost of $0.46/1M tokens, which is about 12.2x cheaper than GPT-5.4 at $5.63/1M tokens.

    GPT-5.4 is better for coding tasks on this benchmark. It scores 57.7% on swe-bench-pro (complex codebases, multi-file repositories, and architectural planning) compared to GPT-5.4 nano which scores 52.4%.

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