GPT-5.4 nano vs GPT-5.4 Pro: Specs & Benchmark Comparison

CharacteristicGPT-5.4 nanoGPT-5.4 Pro
CompanyOpenAIOpenAI
Release DateMarch 1, 2026March 1, 2026
Parameters
MultimodalYesYes
Context (input)400K1.0M
Context (output)128K128K
Input Price / 1M$0.12$15.00
Output Price / 1M$1.50$225.00
Average Score0.70.0

Verdict

Both models show equal results — the choice depends on your specific use case.

API Cost

GPT-5.4 nano is 148.1x cheaper: input $0.12/1M vs $15.00/1M tokens.

Context Window

GPT-5.4 Pro supports a larger context: 1M vs 400K tokens.

Recency

Both models were released around the same time: 3/1/2026 and 3/1/2026.

More About These Models

Related Comparisons

The GPT-5.4 nano and GPT-5.4 Pro comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GPT-5.4 nano or GPT-5.4 Pro page. See also the complete list of AI model comparisons.